The Barmer district a part of Thar Desert is very rich in herbal plant wealth. The herbal plants of this region have great potential to be used in drug and pharmaceutical industries. These herbal plants have been used by local people, tribal communities, vendors, native doctors such as Ojhas, Bhagats Bhopas and experts of Ayurvedic fields since long time in herbal and folk remedies. Kalbelia, Nats, Bhils, Raika, Bhopas, Banjara, Gadolia-Lohar Langa and Manganiars communities of this district have a rich knowledge of plants based traditional medicines. Ethnomedicinal plants like Aristolochia bracteolata Lamk., Calligonum polygonoides Linn., Cardiospermum halicacabum Linn., Clerodendrum phlomoidis Linn., Evolvulus alsinoides Linn., Grewia tenax (Forsk.) Fiori., Maytenus emarginata (Willd.) Ding Hau., Mollugo Cerviana (Linn.) Seringe. Neurada procumbens Linn., Ocimum americanum Linn., Peganum harmala Linn., Pergularia daemia (Forsk) Chiov., Portulaca oleracea Linn., Sarcostemma acidum (Roxb.) Voigt. and Trianthema portulacastrum Linn. have been selected for this research work.The present investigation is aimed to create awareness about the ethnomedicinal value of the plants and their uses to draw the attention of pharmacologists, phytochemists and pharmaceuticals.

The Jodhpur district a part of Thar Desert is very rich in medicinal plant wealth. The medicinal plants of this region have great potential to be used in drug and pharmaceutical industries. These herbal plants have been used by local people, tribal communities, vendors, native doctors such as Ojhas, Bhagats Bhopas and experts of Ayurvedic fields since long time in herbal and folk remedies. Kalbelia, Nats, Bhils, Raika, Bhopas, Banjara, Gadolia-Lohar, Saharia and Meena communities of this district have a rich knowledge of plants based traditional medicines. Ten ethnomedicinal plants like Cleome gynandra Linn., Clerodendrum phlomidis Linn., Cassia angustifolia Vahl., Echinops echinatus Roxb., Leucas aspera (Willd.) Spreng., Mimosa hamata Willd., Moringa oleifera Lamk., Pedalium murex Linn., Peganum harmala Linn., Sida cordifolia Linn. have been selected for this research work. The present investigation is aimed to create awareness about the ethnomedicinal value of the plants and their uses to draw the attention of pharmacologists, phytochemists and pharmaceuticals.

Antimicrobial screening of ethyl ether and alcoholic extracts of leaves of four selected exotic tree species growing in Rajasthan Desert was carried out. Colophospermum mopane, Holoptelea integrifolia, Kigelia pinnata and Putranjiva roxburghii showed positive reactions against bacterial pathogens i.e. Staphylococcus aureus, Escherichia coli and a fungal pathogen Candida albicans.

Evaluation of sterol contents from three selected medicinal plant species of Fabaceae family growing in Rajasthan Desert was carried out. The roots, shoots and fruits of Clitoria ternatea, Sesbania bispinosa and Tephrosia purpurea were analysed for sterol contents. - Sitosterol and Stigmasterol were isolated and identified. Maximum sterol contents were observed in shoots of Sesbania bispinosa (0.29 mg/g.d.w.), whereas minimum in roots of Tephrosia purpurea(0.15mg/g.d.w.

Evaluation of mineral contents from three selected plant species of Fabaceae family growing in arid region of Rajasthan Desert was carried out. The roots, shoots and fruits of Clitoria ternatea, Sesbania bispinosa and Tephrosia purpurea collected from two different areas Chhatargarh area (Bikaner district) and Ratangarh area (Churu district) were analysed for mineral contents. The maximum Calcium (3.86%), Phosphorus (0.48%), Potassium (0.92%) and Sodium (1.08%) contents were found in roots and shoots of Grewia tenax collected from study area.