Ethnobotanical Study of Herbaceous Flora along an Altitudinal Gradient in Bharmour Forest Division, District Chamba of Himachal Pradesh, India

The present ethnobotanical study was carried out in Holi (Deol, Kut, Dal, and Lahaud Dhar) forest range and in Bharmor (Seri, Bharmour, Malkauta, Bharmani, Harsar, Dhancho, Sundrasi, Gorikund, and Manimahesh) forest range to obtain information on the plants used by the local inhabitants for several purposes. A total of 54 plants were recorded in this study. The plants are employed to treat simple diseases (cough, cold, fever, and burns) and some serious diseases (typhoid, jaundice, and kidney disease). Some of the plants are also used as incense for religious ceremonies and several other daily needs. But due to absence of scientific monitoring of plants, their cultivation, harvesting, and management techniques as well as sustainable use and lack of awareness of social factors, the availability of valuable plant resources is decreasing at an alarming rate. In addition, the indigenous knowledge regarding the use of lesser-known plants of this region is also rapidly declining. Therefore, the documentation of plant resources is a necessary step towards the goal of raising awareness in local communities about the importance of these plants and their further conservation.


Introduction
Ethnobotany is widely regarded as the science of human interaction with plants and their environments. Ethnobotanical knowledge is the result of successful experimentation with plants since time immemorial and has given us our recognized foods and medicines. Ethnobotany illuminates the direct relationship between human beings and plants and has proven to be of great utility in the health care programs. Ethnobotany also explores the importance of plants as emergency foods, as well as uncovering useful information about the sociocultural medicoreligious lore and values, phrases and proverbs, taboos, and totems prevailing in a specific region or society. Over the last century, ethnobotany has evolved into a scientific discipline that focuses on the people and plant relationship in a multidisciplinary manner, incorporating not only collection and documentation of indigenously used species but also ecology, economy, pharmacology, public health, and other disciplines.
Today, ethnobotany has become increasingly valuable in the development of health care and conservation programs in different parts of the world. Ethnobotanical studies that explore and help to preserve knowledge are therefore urgently needed before traditional folklores are lost forever [1]. The dependence on herbal resources to cure different types of diseases is well known. It has been estimated that there are between 3,500 and 70,000 plant species that have been used around the world, at one time or another, for medicinal purpose. At least 65,000 species are used in Asia alone as home remedies for various ailments [2]. The World Health Organization (WHO) has estimated that at least 80 percent of the world's population relies on traditional systems of medicine to meet their primary health care needs. In addition, medicinal plants also form an important part of the world's economy since many modern medicines are derived from plants. The indigenous systems of medicine practiced in India are mainly based on the use of plants. Every year, the medicinal plant-related trade is growing rapidly, and 2 Evidence-Based Complementary and Alternative Medicine while India's share in global market is not very impressive (only 0.5%-1%), demand for these products is increasing at an alarming rate [3].
The rural and tribal people of India still depend largely on the local herbal resources for curing different types of diseases. The use of plants as medicine dates back to the early man. There are records of the use of medicinal plants by ancient great civilizations, such as those of China, India, the Middle East, North Africa, and South America. This culture continues today in the form of folk medicine in different parts of the world and led to the development of traditional systems of medicine. Systematic and scientific investigations of traditional medicinal plants have also provided many valuable drugs in western medicine [4].
The Chamba district of Himachal Pradesh is considered as one of the richest areas of traditional and potential medicinal wealth. The Kangra district of Himachal Pradesh and the Gurdaspur district of Punjab bound the district to the south, Jammu and Kashmir to the north, and Lahaul-Spiti to the east. The district has two tribal regions, namely, Pangi and Bharmour. Bharmour is situated in the west of this district, whereas the Pangi Valley is situated in the north. The vegetation of the Chamba district varies considerably, chiefly owing to elevation and rainfall variations [5]. There is no proper record available regarding the traditional medicinal knowledge of the tribal area except the study carried out by Rani et al. [6] from Chamba district of Himalachal Pradesh, which is a very limited study from this region. Keeping these factors in view, the present study was carried out with the objective to find out the various uses of the herbaceous flora used by the inhabitants in this region of Himachal Pradesh, India.

Study Area and
Climate. An extensive field survey of selected areas of Holi and Bharmour was carried out. Sites included Deol (2,300-2800 m), Kut (2,800-3300 m), Dal (3,300-3800 m), and Lahaud Dhar (3,800 m and above) in the Holi forest range and Seri (1,700-2200 m), Bharmour The climate of the study area is typically temperate. The year is characterized by three main seasons: the cool and relatively dry winter (December to March), the warm and dry summer (mid-April to June), and a warm and wet period (July to mid-September), called the monsoon or rainy season. The rainy season accounts for about three quarters of the annual rainfall. Apart from these main seasons, the transitional periods connecting the rainy season and winter and winter and summer are referred to as autumn (October to November) and spring (February to March). The mean annual rainfall is 1500 mm, and the mean annual temperature lies between 3 ∘ C and 30 ∘ C. Jam mu and Ka shm ir Riv er Ch and ra bha ga or che rra b Figure 1 2.2. Methodology Adopted. The information regarding the traditional knowledge, local uses of plants within the study area, the local names, parts used, purposes, modes of administration, and curative properties, and so forth was recorded through intensive interviews and discussions with elderly people (men/women), herbal healers, local vaids, and grazers (Gaddis and Gujjars) using a well-structured questionnaire (Annexure-1). The information on plants was collected randomly from approximate 10% of the total population (30 adult persons in Holi (Deol, Kut, Dal, and Lahaud Dhar) forest range and 20 adult persons in Bharmor range (Seri, Bharmour, Malkauta, Bharmani, Harsar, Dhancho, Sundrasi, Gorikund, and Manimahesh)). The information was taken from all ages. We tried to achieve an even age/gender distribution in all age classes. All information was obtained after receiving an oral prior informed consent from the participants, and the ISE (International Society of Ethnobiology) Code of Ethics was followed. The inhabitants identified the plants used for various purposes, and vouchers of each plant were collected and stored in the herbarium of the Department of Forest Products, Y.S. Parmar University, Solan, Himachal Pradesh. The HERBARIUM ACRONYM is given as UHF with collector number (Table 1). All scientific plant names follow TROPICOS (www.TROPICOS.org), and the nomenclature follows APG-3. In addition, we reviewed information on ethnobotanical uses mentioned in India's vast Evidence-Based Complementary and Alternative Medicine 3 5 Allium victorialis L.

UHF-12376
Happu Amaryllidaceae Leaves, roots Leaves are used as vegetable and substitute for garlic.
Roots are not harvested so as to allow plants to regrow. 6 Ainsliaea aptera DC.

UHF-11777
Bhujlu Asteraceae Leaves Fibre collected from backside of leaves is rubbed with runka (iron instrument) to produce fire. 8 Angelica glauca Edgew.

UHF-12305
Chora Apiaceae Roots (i) The root is dried and roasted in ghee and powdered.
The powder is used as spice.
(ii) Root powder with black salt (kala namak) is given in flatulence and dyspepsia.
(iii) Dry roots powder mixed with oil is applied to cure oedema. 9

UHF-9888
Dhaintura Solanaceae Seed Seed is dried and ground. The powder of seeds is mixed with mustard oil and boiled. After cooling, it is applied to pained joints to relieve pain. 17

UHF-12383
Khaldri Dioscoreaceae Roots Roots are powdered and put in wooden pot with holes to protect woolen clothes from insect attack. 18

UHF-12391
Saunf Apiaceae Seed Used as condiment. 4 Evidence-Based Complementary and Alternative Medicine

UHF-11743
Napalu Violaceae Flower Decoction of flowers is used in case of cough and cold. 6 Evidence-Based Complementary and Alternative Medicine literature, as well as in related written sources, for example, [7,8]. An oral consensus survey was also carried out among the people of each locality. Main occupation: Subsidiary occupation: Education: Ethnobotanical uses of plants.
(1) Local/vernacular name of plant: (2) Scientific name of plant: (3) Part used of plant: (4) Name of ailment/other purposes in which plant part is used: (11) Any awareness camps /trainings /exposure visits organized for ethnobotanical plants: (12) Any conservation practices on ethnobotanical plants:

Results and Discussion
The ethnobotanical information about the various plants was collected through interviews and discussions with elderly/experienced people. The data reveal that villagers used 54 species for common ailments and other purposes ( Table 1). Local elderly people, hermits, shepherds, and vaids provided the information about different plant uses. Many of the plant species are used frequently (though sometimes only occasionally) for curing various diseases. The local people (shepherds in particular) believe in the healing power of these herbs, along with the power of Tantra and Mantra, but knowledge thereof is restricted to very few elderly folks. Moreover, the younger generation does not seem much interested in keeping this traditional knowledge alive and spends most of the time growing commercial crops and fruits. With the passage of time, knowledge about these valuable medicinal plant resources will vanish. In the future, the information will be completely lost, thereby greatly weakening traditional medical practices. Therefore, this valuable information needs to be systematically collected and documented, so that it can serve mankind for generations to come and may also conserve the precious plant resources of high economic utility.
The present study calls attention to some species with ethnobotanical uses that have not been reported earlier [9]. Although, the ethnobotanical study carried out by Sharma [10] of the Gaddi tribe of the Kangra district of Himachal Pradesh, where he documented 67 plants of ethnobotanical uses. Of those, some species recur in this study. However, there are certain variations in the ethnobotanical use of these plants. For example, Origanum vulgare was reported to have the properties of an insect repellent. We found that people in the Bharmour area use it instead to wash milk utensils in order to impart aroma to the milk. Similarly, Sharma [10] reported the use of Angelica glauca roots in case of dyspepsia; however, the present study reveals its use in treating flatulence and curing edema including dyspepsia. The difference in ethnobotanical practice may be due to the fact that the Gaddis have settled in Kangra for a very long time, during which they developed some different ways of utilizing plants.
Of the plants considered to have ethnobotanical uses recorded in the present study, some of them have been mentioned in the study conducted by Dinanath [4] and Gupta [9]. Many of these plants have almost the same ethnobotanical uses. However, there are slight variations. For instance, Dinanath [4] reported the use of Angelica glauca as flavoring agent and Gupta [9] reported this plant was useful for reducing obesity; however, Bhat et al. [11] conducted a study in Garhwal Himalayan forests which reported that Angelica glauca is used for indigestion and constipation, whereas we found that this species has many uses such as being used as a spice, treating flatulence and dyspepsia, and curing edema. Bhat et al. [11] also reported that Picrorhiza kurroa root is used for fever and stomachache; however, in the present study, Picrorhiza kurroa root is used for jaundice and diarrhea including stomachache; further, earlier studies describe Heracleum candicans as useful for healing of wounds, and the paste of the root is applied to counteract snake bite. In our interviews, we found H. candicans paste is useful in case of snake bite, including this, the paste also mixed with sour lassi and given to the patient. These differences in the ethnobotanical practice may be due to the variation in the place of study and objectives of studies, the former being carried out among the Pangi of the Pangwal tribe and the Gaddi tribe of Bharmour, whereas the present study reported anthropogenic pressure, along with ethnobotanical data found in the Bharmour forest division. Rani et al. [6] conducted a study on ethnomedicinal plants of Chamba district, Himachal Pradesh, which reported 50 plant species commonly used by local people to cure 26 diseases. Of total 50 plants reported by Rani et al. [6] in their study, some of them were commonly reported in the present study but they vary their mode of use and purposes. Kumar et al. [12] carried out a study on ethnomedicinal plants of Garhwal Himalaya where few plants were common in the present study but the uses were also reported differently. Bhat et al. [13] collected information on ethnomedicinal and ecological studies of plants in Garhwal Himalayan in high altitude, where a total of 152 medicinally important plant species were reported, in which 103 were found to be herbs of which some of the species were found to be common with similar use of the present study. A similar study on ethnomedicinal plants of other parts of the country is also done by Joshi et al. [14] in Kumaun Himalaya. Negi et al. [15] collected information of 50 plant species regarding their mode of preparation and use of Raji tribes in Uttarakhand Himalaya where few plants were common but their uses were again also reported differently.
The oral consensus of local inhabitants represents that, in each study site, the majority of inhabitants agreed with the same statement as the information collected on plants.
A similar study was carried out by Bhat et al. [11] where the consensus of informants for the roots and rhizomes of plants was the most frequently used (68%). Singh and Rawat [16] also reported that roots are the most used plant parts. According to Keter and Mutiso [17], the leaves are the most frequently used plant parts. However in the present study, the majority consensus on the most used plant part was the root.

Conclusions
The dialectical relationship between indigenous knowledge and practices shapes the ecosystem and affects the constituent plant population. By incorporating indigenous knowledge and use in the process of scientific research, new hypotheses for the sustainable conservation of resources can be developed. Indigenous knowledge and use have to be analyzed to develop appropriate management measures that build on both scientific and local knowledge. Due to the changing perception of local people and the ever-increasing influence of global commercialization and socioeconomic transformation, indigenous knowledge of plant resource use is constantly diminishing. Due to the lack of organized sustainable and scientifically monitored cultivation and harvesting, lack of proper management techniques, and lack of awareness of social factors, the number of useful plant resources is decreasing at an alarming rate. Furthermore, indigenous knowledge on the use of lesser-known plants is also rapidly declining.