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Relative popularity level of medicinal plants in Talagang, Punjab Province, Pakistan

ABSTRACT

This is the first ethnobotanical exploration with the aim to document the traditional medicinal usage of plants with the therapeutic values in Tehsil Talagang of Punjab province, Pakistan. The study shows the dependence of local people on medicinal plants in their daily life and provides practical evidence regarding the traditional usage of medicinal plants in health care practices. A total of 196 respondents including residents of the study area with gender representation and traditional healers were interviewed by using visual appraisal approach and rapid rural appraisal methods along semi-structured interviews and open-ended questionnaire. The data was quantitatively analyzed by using quantitative indices like use value, the relative frequency of citation, informant consensus factor, fidelity level and relative importance. A comparison with 25 published ethnobotanical and pharmacological studies was carried out to authenticate the ethnomedicinal relevance of the data recorded. The ethnomedicinal practices of 101 medicinal plants belonging to 36 families were reported. The results indicated that the dominant family was Brassicaceae (nine species). Herbs (57%) were the most dominant life form and leaves (29%) were the frequently used plant part with 45 reports. Mentha arvensis was found as highly cited plant species by respondents. The highest informant consensus factor value (0.65) was found for gastrointestinal disease category. There are 25 plant species having 100% fidelity level value. Use value and relative frequency of citation ranges from 0.04 to 0.16 and 0.15 to 0.36, respectively. The majority of the plant species were found to have strong pharmacological evidence. The current study will provide the basis for the preservation of ethnomedicinal heritage, knowledge and practices as well as for the further scientific investigations regarding the development of new herbal drugs.

Keywords:
Ethnobotany; Medicinal plants; Talagang; Punjab; Pakistan

Introduction

Ethnobotanical surveys provide information about indigenous communities and their traditional uses of medicinal plants (Ford et al., 1994Ford, D., Easton, D.F., Bishop, D.T., Narod, S.A., Goldgar, D.E., 1994. Risks of cancer in BRCA1-mutation carriers. Lancet 343, 692-695.; Verpoorte et al., 2005Verpoorte, R., Choi, Y., Kim, H., 2005. Ethnopharmacology and systems biology: a perfect holistic match. J. Ethnopharmacol. 100, 53-56.). Besides, these surveys have developed a focus on the discovery of drugs using herbal products as 50% of the drugs are prepared from these herbal products and their derivatives all over the world (Verpoorte, 2000Verpoorte, R., 2000. Pharmacognosy in the new millennium: leadfinding and biotechnology. J. Pharm. Pharmacol. 52, 253-262.; Yang et al., 2009Yang, M., Sun, J., Lu, Z., Chen, G., Guan, S., Liu, X., Jiang, B., Ye, M., Guo, D.-A., 2009. Phytochemical analysis of traditional Chinese medicine using liquid chromatography coupled with mass spectrometry. J. Chromatogr. A 1216, 2045-2062.; Stefkov et al., 2011Stefkov, G., Kulevanova, S., Miova, B., Dinevska-Kjovkarovska, S., Mølgaard, P., Jäger, A.K., Josefsen, K., 2011. Effects of Teucrium polium spp. capitatum flavonoids on the lipid and carbohydrate metabolism in rats. Pharm. Biol. 49, 885-892.). These investigations also highlight the conservation of medicinal flora biodiversity (Leonti, 2011Leonti, M., 2011. The future is written: impact of scripts on the cognition, selection, knowledge and transmission of medicinal plant use and its implications for ethnobotany and ethnopharmacology. J. Ethnopharmacol. 134, 542-555.).

In developing world, more than 4.5 billion people depend on medicinal plants as they are considered a part of their primary healthcare (Mussarat et al., 2014Mussarat, S., Abd-el-Salam, N.M., Tariq, A., Wazir, S.M., Ullah, R., Adnan, M., 2014. Use of ethnomedicinal plants by the people living around Indus River. Evid. Based Compl. Altern. Med. 2014, 1-14.). According to rough estimates, about 35,000–75,000 medicinal plants have been reported to be useful to fill the gaps by providing the basis for health care system (Khalil et al., 2013Khalil, A.T., Khan, I., Ahmad, K., Khan, Y.A., Khan, M., Khan, M.J., 2013. Synergistic antibacterial effect of honey and Herba Ocimi Basilici against some bacterial pathogens. J. Tradit. Chin. Med. 33, 810-814.). Various studies have been conducted around the globe on the usage of medicinal plants among several indigenous communities (Vandebroek et al., 2004Vandebroek, I., Calewaert, J.-B., Sanca, S., Semo, L., Van Damme, P., Van Puyvelde, L., De Kimpe, N., 2004. Use of medicinal plants and pharmaceuticals by indigenous communities in the Bolivian Andes and Amazon. Bull. World Health Organ. 82, 243-250.; Kargıoğlu et al., 2008Kargıoğlu, M., Cenkci, S., Serteser, A., Evliyaoğlu, N., Konuk, M., Kök, M.Ş., Bağcı, Y., 2008. An ethnobotanical survey of inner-West Anatolia, Turkey. Hum. Ecol. 36, 763-777.; Jamila and Mostafa, 2014Jamila, F., Mostafa, E., 2014. Ethnobotanical survey of medicinal plants used by people in Oriental Morocco to manage various ailments. J. Ethnopharmacol. 154, 76-87.). A quantum of ethnomedicinal studies have progressively been changed into fitness and health care programs (Balick, 1996Balick, M.J., 1996. Transforming ethnobotany for the new millennium. Ann. Missouri Bot. Gard. 83, 58-66.). In recent years, the ethnobotanical studies concerning the usage of medicinal plant has gained considerable attention among the scientific communities (Tripathi et al., 2017Tripathi, J., Singh, R., Ahirwar, R.P., 2017. Ethnomedicinal study of plants used by Tribal person for Diarrhoea diseases in Tikamgarh District M.P. J. Med. Plants Stud. 5, 248-253.). The reasons behind the increasing interest in medicinal plants documentation and their usage as re-emerging health assistance are the rising cost of synthetic drugs for personal health care and the exploration of new plant-derived drugs (Hoareau and DaSilva, 1999Hoareau, L., DaSilva, E.J., 1999. Medicinal plants: a re-emerging health aid. Electron. J. Biotechnol. 2, 3-4.).

Ethnomedicinal practices by the local communities since immemorial times have helped to transfer this knowledge from generation to generation (Ugulu et al., 2009Ugulu, I., Baslar, S., Yorek, N., Dogan, Y., 2009. The investigation and quantitative ethnobotanical evaluation of medicinal plants used around Izmir province, Turkey. J. Med. Plants Res. 3, 345-367.). Therefore, ethnomedicinal knowledge is not only a health care system but also culture and tradition (Heyd, 1995Heyd, T., 1995. Indigenous knowledge, emancipation and alienation. Know. Pol. 8, 63-73.). In the present era, the basic issue is the loss of medicinal plants and the knowledge of ethnomedicinal preparations which can aid many scientists around the world as a guideline for the research of plant-based therapies (Adnan et al., 2014Adnan, M., Ullah, I., Tariq, A., Murad, W., Azizullah, A., Khan, A.L., Ali, N., 2014. Ethnomedicine use in the war affected region of northwest Pakistan. J. Ethnobiol. Ethnomed., http://dx.doi.org/10.1186/1746-4269-10-16.
http://dx.doi.org/10.1186/1746-4269-10-1...
).

Climatic conditions in Pakistan are widely diverse with diverse flora having hefty number of medicinal plants (Gilani et al., 2010Gilani, S.A., Fujii, Y., Shinwari, Z.K., Adnan, M., Kikuchi, A., Watanabe, K.N., 2010. Phytotoxic studies of medicinal plant species of Pakistan. Pak. J. Bot. 42, 987-996.). The rich floral diversity of Pakistan contains approximately 1572 genera and about 6000 wild plant species (Ahmad et al., 2014Ahmad, M., Sultana, S., Fazl-i-Hadi, S., ben Hadda, T., Rashid, S., Zafar, M., Khan, M.A., Khan, M.P.Z., Yaseen, G., 2014. An ethnobotanical study of medicinal plants in high mountainous region of Chail valley (District Swat-Pakistan). J. Ethnobiol. Ethnomed. 10, 4269-4210.). About 60,000 traditional health practitioners in rustic and remote areas are reported to use medicinal plant species in household remedies against various diseases. About 600 medicinal plants are reported to be collected by people as non-timber forest products (NTFP) (Adnan et al., 2014Adnan, M., Ullah, I., Tariq, A., Murad, W., Azizullah, A., Khan, A.L., Ali, N., 2014. Ethnomedicine use in the war affected region of northwest Pakistan. J. Ethnobiol. Ethnomed., http://dx.doi.org/10.1186/1746-4269-10-16.
http://dx.doi.org/10.1186/1746-4269-10-1...
). Previous studies reported that 84% population of Pakistan is relying on traditional herbal medicines for their health care (Qureshi et al., 2007Qureshi, R.A., Ghufran, M.A., Gilani, S.A., Sultana, K., Ashraf, M., 2007. Ethnobotanical studies of selected medicinal plants of Sudhan gali and Ganga Chotti hills, district Bagh, Azad Kashmir. Pak. J. Bot. 39, 2275-2283.). The most common traditional medicinal system of Pakistan is based on medicinal plants including “Greeco-Islamic medicines” and “Yunani Dawakhana” (Ahmad et al., 2003Ahmad, M., Khan, M., Qureshi, R., 2003. Ethnobotanical study of some cultivated plants of chhuchh region (District Attock). Hamdard Med. 46, 15-19.). The use of herbal medicines for the cure of several ailments and other infections, such medicinal system is also known as “Tibb-e-Nabwi” common in Pakistan based on the use of herbs and natural commodities prescribed by the Holy Prophet (PBUH) for curing several diseases (Khalil et al., 2014Khalil, A.T., Shinwari, Z.K., Qaiser, M., Marwat, K.B., 2014. Phyto-therapeutic claims about euphorbeaceous plants belonging to Pakistan; an ethnomedicinal review. Pak. J. Bot. 46, 1137-1144.). In the last few years, in different areas of Pakistan there has been a growing inquisitiveness in the research for remedial plants and their folk usage (Kayani et al., 2014Kayani, S., Ahmad, M., Zafar, M., Sultana, S., Khan, M.P.Z., Ashraf, M.A., Hussain, J., Yaseen, G., 2014. Ethnobotanical uses of medicinal plants for respiratory disorders among the inhabitants of Gallies–Abbottabad, Northern Pakistan. J. Ethnopharmacol. 156, 47-60.). In Pakistan, a number of studies has been carried out in local communities which were found to use medicinal plant species for the treatment of several diseases and they were practicing it for a long time (Gilani et al., 2009Gilani, S.A., Kikuchi, A., Watanabe, K.N., 2009. Genetic variation within and among fragmented populations of endangered medicinal plant. Withania coagulans (Solanaceae) from Pakistan and its implications for conservation. Afr. J. Biotechnol. 8, 2948-2958.; Mohy-ud-din et al., 2010Mohy-ud-din, A., Khan, Z., Ahmad, M., Kashmiri, M.A., 2010. Chemotaxonomic value of alkaloids in Solanum nigrum complex. Pak. J. Bot. 42, 653-660.; Shinwari, 2010Shinwari, Z.K., 2010. Medicinal plants research in Pakistan. J. Med. Plants Res. 4, 161-176.).

Indigenous medicines have been consumed at large scale in the province of Punjab (Arshad et al., 2011Arshad, M., Nisar, M.F., Majeed, A., Ismail, S., Ahmad, M., 2011. Ethnomedicinal flora in district sialkot, Punjab, Pakistan. Middle East J. Sci. Res. 9, 209-214.; Ikram et al., 2014Ikram, S., Bhatti, K.H., Parvaiz, M., 2014. Ethnobotanical studies of aquatic plants of district Sialkot, Punjab (Pakistan). J. Med. Plants Stud. 2, 58-63.; Mahmood et al., 2013Mahmood, A., Mahmood, A., Malik, R.N., Shinwari, Z.K., 2013. Indigenous knowledge of medicinal plants from Gujranwala district, Pakistan. J. Ethnopharmacol. 148, 714-723.; Parvaiz, 2014Parvaiz, M., 2014. Ethnobotanical studies on plant resources of Mangowal, District Gujrat, Punjab, Pakistan. Avicenna J. Phytomed. 4, 364-370.; Qureshi et al., 2011Qureshi, R., Maqsood, M., Arshad, M., Chaudhry, A.K., 2011. Ethnomedicinal uses of plants by the people of Kadhi areas of Khushab, Punjab, Pakistan. Pak. J. Bot. 43, 121-133.; Qureshi et al., 2009Qureshi, R., Waheed, A., Arshad, M., Umbreen, T., 2009. Medico-ethnobotanical inventory of Tehsil Chakwal, Pakistan. Pak. J. Bot. 41, 529-538.; Sardar et al., 2015Sardar, A.A., Perveen, A., Zereen, A., 2015. Appraisal of ethnobotanical uses of the wetland plants of Punjab, Pakistan. Afr. J. Tradit. Compl. Altern. Med. 12, 9-13.) but unfortunately, this ethnobotanical knowledge is not being properly documented and Talagang-Punjab is no exception in this regard. Consequently, the current study can be considered as the first study in the area of Talagang as the area has never been assessed ethnobotanically. Talagang has its unique topography having a rich diversity of medicinal plant species. The elderly people of rural areas, both men and women, have adequate knowledge about ethnomedicinal practices and prefer to use medicinal plants for the cure of various ailments. Due to widespread and outreach of modern health facilities, the ethnobotanical knowledge is gradually fading out from some urban areas of Talagang. Considering all these issues, it was deemed appropriate to document the traditional knowledge about the use of medicinal plants by the inhabitants of Talagang. The aim of the current study was to investigate and document the ethnomedicine to describe the status of contemporary ethnobotanical knowledge among different age groups and to access the level of traditional knowledge using quantitative indices like fidelity level (FL), use value (UV), frequency citation (FC), informant consensus factor (ICF) and relative frequency of citation (RFC).

Materials and methods

Geo-ethnographical overview of study area

In the Punjab province of Pakistan, Talagang is the subdivision of district Chakwal. It lies 45 km away from the Chakwal city. It is situated at 32º 55' N and at 72º 25' E. Talagang is one of the five administrative centers of Chakwal. There are 102 villages under the administrative division of Talagang. Talagang shares boundaries with Dudial, Tehi, Traggar, Chatwal and Dhok Marianwali villages in the north and with Dhok Jamal, Murat, NakkaKahut and Nara Pir villages in the east. The local people mainly use Punjabi language. About 80% of the total population living in Talagang is ethnically Punjabi of Aryan origin. The study area comprises of subtropical semi-arid, sub-humid and sub-mountainous zone. The weather remains cool mostly because of its elevation from the Central Punjab and due to hilly and mountainous areas near it like Soon valley and Kallar Kahar. The summer and winter temperature ranges between 15 to 40 ºC and −4 to 25 ºC respectively (Fig. 1).

Fig. 1
Map of Pakistan showing Punjab Province and Talagang.

Talagang is bestowed with a large no of medicinal plants and has a diversity of flora. Adequate health facilities are present for inhabitants in the form of single government hospital and a number of private hospitals but the majority of people are still partially dependent on traditional medicines because of common tradition that the old people prefer to use indigenous traditional methods for treating various ailments rather than modern medicinal system. Agriculture is the major source of earnings for local people as 50% of the total population of the study area is related to agriculture. The socio-economic conditions of the study area can be strongly affected by promoting the cultivation of medicinal plants.

Ethnobotanical field survey and data collection

The field data was collected through ethnobotanical surveys from October 2014 to October 2015 following ordinary approaches. Ethnomedicinal data was compiled using different protocols like field interpretations, semi-structured and open-ended interviews (Martin, 1995Martin, G.J., 1995. Ethnobotany-A People and Plants Conservation Manual. Parthenon Publishing Group Casterton Hall, Carnforth Lancashire, England LA6 2LA.). Ethnomedicinal knowledge was also documented through a questionnaire. Written Prior informed consent’ (PIC) was obtained from the local communities which included the right of an indigenous community to give or withhold her consent to the proposed research project that may affect the lands, resources, traditional knowledge and customs that they customarily own, occupy or otherwise use.

A total of 196 local respondents were interviewed randomly in the study area for the collection of ethnomedicinal knowledge. These informants included 105 male, 91 female and 17 traditional health practitioners. The questionnaire contained information on the demography of local informants including gender, age, education and experience. Besides, it also included the local name, parts used, preparation methods, folk recipes, mode of utilization and the ailments treated with medicinal plant species.

Medicinal plant species were collected, dried, preserved and mounted on standard herbarium sheets. The collected medicinal plant species were identified by using local names of the plants as reported by the local conversant respondents and by comparing with herbarium specimens of Herbarium of Pakistan (ISL), Quaid-i-Azam University Islamabad. The medicinal plant names services (https://www.kew.org/mpns) was also consulted for taxonomic and botanical authentication. The collected plant specimens were assigned voucher specimen numbers and deposited in the Herbarium of Pakistan (ISL), Quaid-i-Azam University Islamabad.

Quantitative analysis of ethnobotanical information

Ethnomedicinal data was quantitatively analyzed using various quantitative indices such as use value (UV), relative frequency of citation (RFC), fidelity level (FL), relative importance (RI) and informant consensus factor (ICF).

Informant consensus factor (ICF)

Informant consensus factor (ICF) was calculated using given formula (Trotter and Logan, 1986Trotter, R.T., Logan, M.H., 1986. Informant consensus: a new approach for identifying potentially effective medicinal plants. Plants Ind. Med. Diet: Biobehav. Appr., 91-112.; Tabuti et al., 2003Tabuti, J., Lye, K., Dhillion, S., 2003. Traditional herbal drugs of Bulamogi, Uganda: plants, use and administration. J. Ethnopharmacol. 88, 19-44.; Teklehaymanot, 2009Teklehaymanot, T., 2009. Ethnobotanical study of knowledge and medicinal plants use by the people in Dek Island in Ethiopia. J. Ethnopharmacol. 124, 69-78.):

ICF = Nur Nt Nur 1

where Nur indicates the number of use reports for a specific disease category and Nt mentions the number of taxa used for the disease category. ICF is used to indicate the consensus of knowledge on the usage of medicinal plant species for a particular ailment (Canales et al., 2005Canales, M., Hernández, T., Caballero, J., De Vivar, A.R., Avila, G., Duran, A., Lira, R., 2005. Informant consensus factor and antibacterial activity of the medicinal plants used by the people of San Rafael Coxcatlán, Puebla, México. J. Ethnopharmacol. 97, 429-439.). The ICF value ranges from 0 to 1. The highest ICF value indicates the taxa used for the treatment of number of various ailments is reported by large proportion of the informants while low ICF value indicates the taxa used for the treatment of few different ailments which were chosen randomly or informants had lack of knowledge about the usage of plant species (Kloutsos et al., 2001Kloutsos, G., Balatsouras, D.G., Kaberos, A.C., Kandiloros, D., Ferekidis, E., Economou, C., 2001. Upper airway edema resulting from use of Ecballium elaterium. Laryngoscope 111, 1652-1655.; Abu-Irmaileh and Afifi, 2003Abu-Irmaileh, B.E., Afifi, F.U., 2003. Herbal medicine in Jordan with special emphasis on commonly used herbs. J. Ethnopharmacol. 89, 193-197.; Gazzaneo et al., 2005Gazzaneo, L.R.S., De Lucena, R.F.P., de Albuquerque, U.P., 2005. Knowledge and use of medicinal plants by local specialists in an region of Atlantic Forest in the state of Pernambuco (Northeastern Brazil). J. Ethnobiol. Ethnomed. 1, 9.; Teklehaymanot, 2009Teklehaymanot, T., 2009. Ethnobotanical study of knowledge and medicinal plants use by the people in Dek Island in Ethiopia. J. Ethnopharmacol. 124, 69-78.).

Use value (UV)

Use value (UV) was calculated by applying standard procedure as indicated in literature (Phillips et al., 1994Phillips, O., Gentry, A.H., Reynel, C., Wilkin, P., C.G.-D., B., 1994. Quantitative ethnobotany and Amazonian conservation. Conserv. Biol. 8, 225-248.; Šavikin et al., 2013Šavikin, K., Zdunić, G., Menković, N., Živković, J., ćujić, N., TereŠčenko, M., Bigović, D., 2013. Ethnobotanical study on traditional use of medicinal plants in South-Western Serbia, Zlatibor district. J. Ethnopharmacol. 146, 803-810.):

UV = U n

where U is the total number of use reports for a given plant species and 'n' is the total number of informants inquired for a given plant species. UV will be high if the value is close to 1 which indicates many use reports for a given plant and significance of plant species among informants whereas the UV will be low if its value is close to 0 which indicates few use reports for a given plant species.

Relative frequency citation (RFC)

Ethnomedicinal data was quantitatively analyzed using RFC which indicated the local importance of medicinal species. The RFC was calculated using given formula (Tardío and Pardo-de-Santayana, 2008Tardío, J., Pardo-de-Santayana, M., 2008. Cultural importance indices: a comparative analysis based on the useful wild plants of Southern Cantabria (Northern Spain) 1. Econ. Bot. 62, 24-39.; Vitalini et al., 2013Vitalini, S., Iriti, M., Puricelli, C., Ciuchi, D., Segale, A., Fico, G., 2013. Traditional knowledge on medicinal and food plants used in Val San Giacomo (Sondrio, Italy) – an alpine ethnobotanical study. J. Ethnopharmacol. 145, 517-529.):

RFC = F C / N 0 < RFC < 1

where FC is the number of informants who reported the use of plant species and N is the total number of informants who participated in the survey. High RFC value indicates the prominence of a plant species among the informants. The RFC value may be 1 for a given plant species if informants report the particular plant species as useful and the RFC value could be 0 if nobody mentions the use of plant species (Medeiros et al., 2011Medeiros, M.F.T., Silva, O., Albuquerque, U., 2011. Quantification in ethnobotanical research: an overview of indices used from 1995 to 2009. Sitientibus Sér. Ci. Biol. 11, 211-230.).

Fidelity level (FL)

Fidelity level (FL) index is used to indicate the plant species more ideal for the treatment of specific ailment (Musa et al., 2011Musa, M.S., Abdelrasool, F.E., Elsheikh, E.A., Ahmed, L., Mahmoud, A.L.E., Yagi, S.M., 2011. Ethnobotanical study of medicinal plants in the Blue Nile State, South-eastern Sudan. J. Med. Plants Res. 5, 4287-4297.). FL was calculated using following formula (Friedman et al., 1986Friedman, J., Yaniv, Z., Dafni, A., Palewitch, D., 1986. A preliminary classification of the healing potential of medicinal plants, based on a rational analysis of an ethnopharmacological field survey among Bedouins in the Negev Desert, Israel. J. Ethnopharmacol. 16, 275-287.):

FL = Ip Iu × 100

where Ip shows the number of informants mentioning the use of plant species for a particular disease category and Iu shows the number of informants citing the usage of that plant species for any disease category. The high value of FL shows the importance of particular plant species over other plants for the treatment of specific disease as high value confirms the high frequency of plant usage against a particular disease. The low value of FL shows the use of plant species for different medicinal purposes and it confirms its low frequency usage against a particular disease by the informants of the study area.

Relative importance (RI)

The value of RI was calculated (Bennett and Prance, 2000Bennett, B.C., Prance, G.T., 2000. Introduced plants in the indigenous pharmacopoeia of Northern South America. Econ. Bot. 54, 90-102.) by using following formula:

RI = PP + AC × 100 2

where PP indicates the pharmacological properties which are calculated by dividing the number of UR for plant species with the highest number of UR, while AC indicates the diseases treated related to a particular body system. The value of AC is obtained by dividing the number of body systems treated using a particular plant species with the highest number of disease categories treated using a most extensively used species.

Comparison with previous studies

In this study, the documented data was compared with a total of 25 published ethno-botanical studies (Table 2). During comparative analysis, the percentage of similar and dissimilar uses was calculated. The similar uses were calculated by dividing similar use reports for plant species with all given use reports for plant species multiply by 100. These comparative similarities show the considerable authenticity of documented data.

Table 1
Demographic data of informants in Talagang (Punjab).
Table 2
List of medicinal plants with herbal recipes used among the local people of Talagang, Pakistan.

Results and discussion

Demographic data

A total of 196 informants were interviewed, out of which seventeen were traditional healers and the rest were inhabitants of research area including a majority of Punjabis and Pathans. The majority of informants consisted of males 105 (53.57%) whereas females were 91 (46.42%). On the basis of age, informants were divided into six major cohorts. The majority of informants were between 51–60 years (27.55%) and 41–50 years (22.9%). A great majority of the informants (30.10%) was uneducated and the level of indigenous knowledge on the use of medicinal plants was found to be more prevalent among illiterate people. The role of educated people (20.91%) in this survey was also significant. The experiences of traditional healers were also given in the study showed in Table 1. Among the total seventeen traditional healers, the majority were found to have 5–10 years’ experience (3.06%).

Medicinal plant diversity, frequently cited plant species and habit

A total of 101 plants belonging to 36 families were documented during this ethnobotanical survey. The detailed information on medicinal plant species included their local names, family name, part used, mode of utilization, folk recipes and diseases treated along with quantitative analysis given in Table 2. The dominant family in terms of the number of medicinal plant species used was Brassicaceae followed by Solanaceae and Fabaceae. Brassicaceae was dominant family because most of the members of this family were cultivated for food and used by the local people for treatment of various ailments (Marwat et al., 2008Marwat, S.K., Khan, M.A., Ahmad, M., Zafar, M., 2008. Ethnophytomedicines for treatment of various diseases in DI Khan district. Sarhad J. Agric. 24, 293-303.; Adnan et al., 2014Adnan, M., Ullah, I., Tariq, A., Murad, W., Azizullah, A., Khan, A.L., Ali, N., 2014. Ethnomedicine use in the war affected region of northwest Pakistan. J. Ethnobiol. Ethnomed., http://dx.doi.org/10.1186/1746-4269-10-16.
http://dx.doi.org/10.1186/1746-4269-10-1...
). In the present study, herbs (57%) were the most dominant life form followed by trees (26%), shrubs (13%) and climbers (4%). The reasons behind the high percentage of herbs included their easy availability (Ayyanar and Ignacimuthu, 2005Ayyanar, M., Ignacimuthu, S., 2005. Traditional knowledge of kani tribals in Kouthalai of Tirunelveli hills, Tamil Nadu, India. J. Ethnopharmacol. 102, 246-255.; Uniyal et al., 2006Uniyal, S.K., Singh, K., Jamwal, P., Lal, B., 2006. Traditional use of medicinal plants among the tribal communities of Chhota Bhangal, Western Himalaya. J. Ethnobiol. Ethnomed. 2, 14.; Sanz-Biset et al., 2009Sanz-Biset, J., Campos-de-la-Cruz, J., Epiquién-Rivera, M.A., Cañigueral, S., 2009. A first survey on the medicinal plants of the Chazuta valley (Peruvian Amazon). J. Ethnopharmacol. 122, 333-362.), collection and efficacy in the treatment of various ailments due to the presence of active pharmacological constituents (Adnan et al., 2012Adnan, M., Begum, S., Latif, A., Tareen, A.M., Lee, L., 2012. Medicinal plants and their uses in selected temperate zones of Pakistani Hindukush-Himalaya. J. Med. Plants Res. 6, 4113-4127.). Other reason may be the ease in herbal preparation using herbs (Arshad et al., 2011Arshad, M., Nisar, M.F., Majeed, A., Ismail, S., Ahmad, M., 2011. Ethnomedicinal flora in district sialkot, Punjab, Pakistan. Middle East J. Sci. Res. 9, 209-214.; Lulekal et al., 2013Lulekal, E., Asfaw, Z., Kelbessa, E., Van Damme, P., 2013. Ethnomedicinal study of plants used for human ailments in Ankober District, North Shewa Zone, Amhara region, Ethiopia. J. Ethnobiol. Ethnomed. 9, 4269.) and have an active role in metabolism and digestion (George and Nimmi, 2011George, P., Nimmi, O., 2011. Cent percent safe centum plants for antiobesity. Int. J. Ino. Tech. Cre. Eng. 1, 1-19.).

The present study also enlisted the most-frequently cited medicinal plant species with at least 60 citations or more (Table 2). The most frequently cited species were used by the majority of local people especially old age people because of the common occurrence and easy availability of these plant species. The majority of local informants were also found to have belief in the efficacy of traditional uses of medicinal plants and they prefer to use indigenous ethnomedicinal knowledge over synthetic drugs because of the high cost of synthetic drugs and various side effects.

Plant part used and modes of utilization

Local people utilized various parts of medicinal plants in crude herbal drug preparations; therefore, usage of different plants and its recipes were recorded. Mostly leaves (29%) were the major plant part used by local communities against various ailments because of their easy plucking and conservation (Kadir et al., 2012Kadir, M.F., Sayeed, M.S.B., Mia, M., 2012. Ethnopharmacological survey of medicinal plants used by indigenous and tribal people in Rangamati, Bangladesh. J. Ethnopharmacol. 144, 627-637.). In other studies at various places, ethnic populations were found to show similar results in case of plant parts used for the preparation of herbal medicines as in the current study (Srithi et al., 2009Srithi, K., Balslev, H., Wangpakapattanawong, P., Srisanga, P., Trisonthi, C., 2009. Medicinal plant knowledge and its erosion among the Mien (Yao) in northern Thailand. J. Ethnopharmacol. 123, 335-342.; González et al., 2010González, J.A., García-Barriuso, M., Amich, F., 2010. Ethnobotanical study of medicinal plants traditionally used in the Arribes del Duero, western Spain. J. Ethnopharmacol. 131, 343-355.; Ayyanar and Ignacimuthu, 2011Ayyanar, M., Ignacimuthu, S., 2005. Traditional knowledge of kani tribals in Kouthalai of Tirunelveli hills, Tamil Nadu, India. J. Ethnopharmacol. 102, 246-255.; Adnan et al., 2014Adnan, M., Ullah, I., Tariq, A., Murad, W., Azizullah, A., Khan, A.L., Ali, N., 2014. Ethnomedicine use in the war affected region of northwest Pakistan. J. Ethnobiol. Ethnomed., http://dx.doi.org/10.1186/1746-4269-10-16.
http://dx.doi.org/10.1186/1746-4269-10-1...
; Ahmad et al., 2014Ahmad, M., Sultana, S., Fazl-i-Hadi, S., ben Hadda, T., Rashid, S., Zafar, M., Khan, M.A., Khan, M.P.Z., Yaseen, G., 2014. An ethnobotanical study of medicinal plants in high mountainous region of Chail valley (District Swat-Pakistan). J. Ethnobiol. Ethnomed. 10, 4269-4210.; Dolatkhahi et al., 2014Dolatkhahi, M., Dolatkhahi, A., Nejad, J.B., 2014. Ethnobotanical study of medicinal plants used in Arjan–Parishan protected area in Fars Province of Iran. Avicenna J. Phytomed. 4, 402-412.; Ahmed et al., 2015Ahmad, M., Khan, M., Qureshi, R., 2003. Ethnobotanical study of some cultivated plants of chhuchh region (District Attock). Hamdard Med. 46, 15-19.; Kumar et al., 2015Kumar, K., Sharma, Y.P., Manhas, R., Bhatia, H., 2015. Ethnomedicinal plants of Shankaracharya hill, Srinagar, J and K, India. J. Ethnopharmacol. 170, 255-274.; Patale et al., 2015Patale, C., Nasare, P., Narkhede, S., 2015. Ethnobotanical studies on the medicinal plants of Darekasa Hill range of Gondia district, Maharashtra, India. Int. J. Res. Plant Sci. 5, 10-16.). Other plant parts reported for treatment of several ailments are given in Table 2.

Indigenous communities were found to utilize medicinal plants for the treatment of different diseases using various modes of administration. The major populace was found to treat ailments by using medicinal plants in raw form (17.8%) followed by extract (17.2%). In the study area, mostly people preferred to take fruits and seeds in raw form. Traditional healers of the study area reported multiple preparations by using various parts of the plants because these preparations are more effective for treating ailments. Indigenous people do not store plant parts for drying but they preferred to use fresh plant parts especially for obtaining their extract and juice because of medicinal efficacy. Some people were also found to use different preparation methods as decoction (11.9%) which is the boiling of plant parts in water and infusion (3.97%) which is the addition of boiling water to plant parts and allow it to extract for c.a. 10 min. It was also noticed that the dosage of medications varies among informants depending on the age and treated ailment of the informants. The high number of informants were found to use these medicinal plants orally which is similar to earlier studies conducted in other parts of the world in which they reported oral as a major route of administration (Mood, 2008Mood, S.G., 2008. A contribution to some ethnobotanical aspects of Birjand flora (Iran). Pak. J. Bot. 40, 1783-1791.; Samy et al., 2008Samy, R.P., Thwin, M.M., Gopalakrishnakone, P., Ignacimuthu, S., 2008. Ethnobotanical survey of folk plants for the treatment of snake bites in Southern part of Tamilnadu, India. J. Ethnopharmacol. 115, 302-312.; Poonam and Singh, 2009Poonam, K., Singh, G.S., 2009. Ethnobotanical study of medicinal plants used by the Taungya community in Terai Arc Landscape, India. J. Ethnopharmacol. 123, 167-176.; Nadembega et al., 2011Nadembega, P., Boussim, J.I., Nikiema, J.B., Poli, F., Antognoni, F., 2011. Medicinal plants in Baskoure, Kourittenga province, Burkina Faso: an ethnobotanical study. J. Ethnopharmacol. 133, 378-395.; Brandão et al., 2012Brandão, M.G., Pignal, M., Romaniuc, S., Grael, C.F., Fagg, C.W., 2012. Useful Brazilian plants listed in the field books of the French naturalist Auguste de Saint-Hilaire (1779–1853). J. Ethnopharmacol. 143, 488-500.; Kadir et al., 2012Kadir, M.F., Sayeed, M.S.B., Mia, M., 2012. Ethnopharmacological survey of medicinal plants used by indigenous and tribal people in Rangamati, Bangladesh. J. Ethnopharmacol. 144, 627-637.). Some of the drugs were used in combination with water, oil, milk and jaggery (brown sugar).

Quantitative analysis of ethnomedicinal data

Relative frequency of citation (RFC) and use value (UV)

RFC was calculated to describe the most frequent medicinal plants and the local significance of plant species with reference to informants. The RFC values ranged from 0.15 to 0.36. The medicinal plant species with highest RFC are Coriandrum sativum L., Melia azedarach L. and Mentha arvensis L. (0.36). The high RFC value recorded for Melia azedarach L. may be due to its medicinal value but it was noticed that people also used it for fuel, timber and construction purposes; therefore, it was a well-known plant of the area. Other important species were Coriandrum sativum L. and Mentha arvensis L. with highest RFC because of their easy availability to informants and easy cultivation in kitchen gardens and fields. The plant species with least RFC value were Eucalyptus camaldulensis Dehnh., Ficus benghalensis L., Malva parviflora L. and Parthenium hysterophorus L. The ethnomedicinal studies conducted in Iran and Pakistan reported some plant species with low RFC values similar to the current study (Barkatullah et al., 2015Barkatullah, Ibrar, M., Rauf, A., Hadda, T.B., Mubarak, M.S., Patel, S., 2015. Quantitative ethnobotanical survey of medicinal flora thriving in Malakand Pass Hills, Khyber Pakhtunkhwa, Pakistan. J. Ethnopharmacol. 169, 335-346.; Dolatkhahi et al., 2014Dolatkhahi, M., Dolatkhahi, A., Nejad, J.B., 2014. Ethnobotanical study of medicinal plants used in Arjan–Parishan protected area in Fars Province of Iran. Avicenna J. Phytomed. 4, 402-412.; Mahmood et al., 2013Mahmood, A., Mahmood, A., Malik, R.N., Shinwari, Z.K., 2013. Indigenous knowledge of medicinal plants from Gujranwala district, Pakistan. J. Ethnopharmacol. 148, 714-723.; Sultana et al., 2006Sultana, S., Khan, M.A., Ahmad, M., Zafar, M., 2006. Indigenous knowledge of folk herbal medicines by the women of district Chakwal, Pakistan. Ethnobot. Leaflets 10, 243-253.; Ullah et al., 2014Ullah, S., Khan, M.R., Shah, N.A., Shah, S.A., Majid, M., Farooq, M.A., 2014. Ethnomedicinal plant use value in the Lakki Marwat District of Pakistan. J. Ethnopharmacol. 158, 412-422.).

UV index was used to analyze the data quantitatively for the confirmation of the relative importance of species or family for the population (Vendruscolo and Mentz, 2006Vendruscolo, G., Mentz, A., 2006. Ethnobotanical survey of the medicinal plants used by the community of Ponta Grossa neighborhood, Porto Alegre, Rio Grande do Sul, Brazil. Iheringia Ser. Bot. 61, 83-103.). UV value ranged from 0.04 to 0.16. The plant species with highest UV were Ajuga integrifolia Buch.-Ham. ex D. Don (0.16), Solanum nigrum L. (0.16) and Trianthema portulacastrum L. (0.15). The high use value of these species indicates the common occurrence and the importance of these species among informants as they frequently used these species in herbal therapies for various ailments. The medicinal plant species with least UV are given in Table 2. The preceding reports showed that the plant species with least UV in the current study were more effective as these medicinal plant species can be used in the development of human pharmaceuticals (Holling et al., 2012Holling, C.S., Bailey, J.L., Heuvel, B.V., Kinney, C.A., 2012. Uptake of human pharmaceuticals and personal care products by cabbage (Brassica campestris) from fortified and biosolids-amended soils. J. Environ. Monitor. 14, 3029-3036.; Macuja et al., 2015Macuja, J.C.O., Ruedas, L.N., España, R.C., 2015. Utilization of cellulose from Luffa cylindrica fiber as binder in acetaminophen tablets. Adv. Environ. Chem. 2015, 1-8.; Oliveira et al., 2015Oliveira, T.T., Campos, K.M., Cerqueira-Lima, A.T., Carneiro, T.C.B., da Silva Velozo, E., Melo, I.C.A.R., Figueiredo, E.A., de Jesus Oliveira, E., de Vasconcelos, D.F.S.A., Pontes-de-Carvalho, L.C., 2015. Potential therapeutic effect of Allium cepa L. and quercetin in a murine model of Blomia tropicalis induced asthma. DARU, http://dx.doi.org/10.1186/s40199-015-0098-5.
http://dx.doi.org/10.1186/s40199-015-009...
).

Informant consensus factor (ICF)

Informant consensus factor (ICF) is a good tool to elaborate the frequency of usage of medicinal plant species for various disease categories. The present study reported 12 major ailment categories based on ICF values. The ICF of medicinal plants ranged from 0.4 to 0.65 (Table 3). The highest ICF value (0.65) was reported for gastrointestinal disorders. GIT disorders were found to be more prevalent in the study area because of the intake of low-quality foods especially by youngsters and children who like to eat fast food than homemade dishes. Similar results were reported by other studies conducted in Pakistan and in other countries which reported highest ICF value for GIT disorders (Logan, 1986Logan, M.H., 1986. Informant consensus: a new approach for identifying potentially effective medicinal plants. Plants Ind. Med. Diet: Biobehav. Appr. 91.; Rokaya et al., 2010Rokaya, M.B., Münzbergová, Z., Timsina, B., 2010. Ethnobotanical study of medicinal plants from the Humla district of western Nepal. J. Ethnopharmacol. 130, 485-504.; Teklehaymanot, 2009Teklehaymanot, T., 2009. Ethnobotanical study of knowledge and medicinal plants use by the people in Dek Island in Ethiopia. J. Ethnopharmacol. 124, 69-78.). In the study area, second highest ICF value (0.55) was reported for respiratory disorders mostly prevalent in thickly populated areas and around industrial zones. The least ICF values were found for ear, nose, eye disorders and for body energizers. Similar results were shown by a survey conducted in Morocco which also reported respiratory diseases with second highest ICF value (0.83) and eye disorders with least ICF value (0.22) (Jamila and Mostafa, 2014Jamila, F., Mostafa, E., 2014. Ethnobotanical survey of medicinal plants used by people in Oriental Morocco to manage various ailments. J. Ethnopharmacol. 154, 76-87.).

Table 3
ICF value of medicinal plants used against various diseases.

Fidelity level (FL)

The present study reports FL values varying from 45% to 100%. The results reported 23 medicinal plant species having maximum 100% FL. The medicinal plants with high FL show the preference of these plant species by informants for the treatment of specific diseases (Bibi et al., 2014Bibi, T., Ahmad, M., Tareen, R.B., Tareen, N.M., Jabeen, R., Rehman, S.-U., Sultana, S., Zafar, M., Yaseen, G., 2014. Ethnobotany of medicinal plants in district Mastung of Balochistan province-Pakistan. J. Ethnopharmacol. 157, 79-89.; Islam et al., 2014Islam, M.K., Saha, S., Mahmud, I., Mohamad, K., Awang, K., Uddin, S.J., Rahman, M.M., Shilpi, J.A., 2014. An ethnobotanical study of medicinal plants used by tribal and native people of Madhupur forest area, Bangladesh. J. Ethnopharmacol. 151, 921-930.). This revealed the tendency of ethnomedicinal treatment of ailments among informants although they had access to synthetic pharmaceuticals and government health care system.

Comparison with previous studies

The currently documented data was compared with other previously established studies within Pakistan and in other countries across the region such as India, Bangladesh, Iran, China and Turkey. A total of 25 published research articles were taken into consideration. A total of 189 similar uses were given for 66 plant species, while 71 plants were new for the treatment of various diseases in Pakistan (Table 2). During this comparative analysis, the percentage of similar uses of plant species with other studies was 7.48%. Punica granatum shows maximum similarity with other preceding studies in its ethnomedicinal usage (Ahmed et al., 2015Ahmed, N., Mahmood, A., Mahmood, A., Sadeghi, Z., Farman, M., 2015. Ethnopharmacological importance of medicinal flora from the district of Vehari, Punjab province, Pakistan. J. Ethnopharmacol. 168, 66-78.; Bibi et al., 2014Bibi, T., Ahmad, M., Tareen, R.B., Tareen, N.M., Jabeen, R., Rehman, S.-U., Sultana, S., Zafar, M., Yaseen, G., 2014. Ethnobotany of medicinal plants in district Mastung of Balochistan province-Pakistan. J. Ethnopharmacol. 157, 79-89.; Dolatkhahi et al., 2014Dolatkhahi, M., Dolatkhahi, A., Nejad, J.B., 2014. Ethnobotanical study of medicinal plants used in Arjan–Parishan protected area in Fars Province of Iran. Avicenna J. Phytomed. 4, 402-412.; Ishtiaq et al., 2015Ishtiaq, M., Mahmood, A., Maqbool, M., 2015. Indigenous knowledge of medicinal plants from Sudhanoti district (AJK), Pakistan. J. Ethnopharmacol. 168, 201-207.; Kumar et al., 2015Kumar, K., Sharma, Y.P., Manhas, R., Bhatia, H., 2015. Ethnomedicinal plants of Shankaracharya hill, Srinagar, J and K, India. J. Ethnopharmacol. 170, 255-274.; Mahmood et al., 2013Mahmood, A., Mahmood, A., Malik, R.N., Shinwari, Z.K., 2013. Indigenous knowledge of medicinal plants from Gujranwala district, Pakistan. J. Ethnopharmacol. 148, 714-723.; Ullah et al., 2014Ullah, S., Khan, M.R., Shah, N.A., Shah, S.A., Majid, M., Farooq, M.A., 2014. Ethnomedicinal plant use value in the Lakki Marwat District of Pakistan. J. Ethnopharmacol. 158, 412-422.). It is noteworthy that 83.97% of the documented medicinal plant species were not reported in the previous studies used for comparative analysis which was calculated by dividing plants not reported in mentioned study with all given use reports for plant species (Table 2) multiply by 100. Various novel uses are reported for some medicinal plant species and the percentage of novel traditional medicinal usage (8.15%) with respect to compared studies was calculated by dividing dissimilar use reports with all given use reports for plant species multiply by 100.

The comparison with neighboring areas studies showed higher similarities due to the exchange of culture, indigenous knowledge and lower similarities with farther study areas due to the difference in cultures. The comparative analysis between the ethnomedicinal uses of plants authenticates the documented data. In the current exploration, medicinal plants not reported in previous studies should be assessed further for essential phytochemicals and pharmacological activities which may help in the discovery of new drugs.

Conclusion

The ethnobotanical findings of this current survey demonstrate that the indigenous knowledge about medicinal plant species in the study area is mainly inherited by elders. The frequently used plant species belong to Brassicaceae followed by Fabaceae and Solanaceae. The major plant parts used by local people against ailments were in the raw form. Quantitative analyses (ICF, RFC, UV, FL, RI) of documented data revealed the traditional medicinal practices of local people for the cure of various disorders in the study area. The comparative analysis and pharmacological evidence of plants strengthen these ethnobotanical findings. The documented plant species with high quantitative ethnobotanical index need to be evaluated for further phytochemical and pharmacological studies to explore the potential of these plants in the development of herbal drugs. Further research on the effectiveness and conservation strategies should be conducted which could supplement the socio-economic conditions of the local people and contribute to the sustainable development of herbal medicines in Talagang, Chakwal, Pakistan.

Ethical disclosures

Protection of human and animal subjects. The authors declare that the procedures followed were in accordance with the regulations of the relevant clinical research ethics committee and with those of the Code of Ethics of the World Medical Association (Declaration of Helsinki).

Confidentiality of data. The authors declare that they have followed the protocols of their work center on the publication of patient data.

Right to privacy and informed consent. The authors have obtained the written informed consent of the patients or subjects mentioned in the article. The corresponding author is in possession of this document.

Acknowledgments

We are grateful to the local communities for providing valuable traditional data and their hospitality. We are also thankful to the traditional healers of Talagang for their cooperation and providing ethnomedicinal information.

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Publication Dates

  • Publication in this collection
    Nov-Dec 2017

History

  • Received
    6 Apr 2017
  • Accepted
    18 Sept 2017
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