| Sanskrit Name | Botanical Name | Family |
|---|---|---|
| rajadana | Vigna unguiculata (Linn.) Walp. | Fabaceae |
| rajadani | Mimusops hexandra Roxb., Mimusops indica | Sapotaceae |
| rajamari | Achillea millifolia Linn | Asteraceae |
| rajamasha | Malaxis muscifera | Orchidaceae |
| rajamasha | Habenaria edgeworthii Hook.f. ex Collett | Orchidaceae |
| rajika | Brassica juncea Linn. | Cruciferae |
| rajika | Sinapus juncea, Sinapus nigra, Sinapus ramosa, Sinapus cunefolia, Sinapus rugosa | Cruciferae |
| raktacandana | Pterocarpus santalinus Linn | Fabaceae |
| raktamaci | Lycopersicum esculentum | Solanaceae |
| raktaniryasa | Daemenorops draco Blume | Palmae |
| raktapamarga | Cyathula prostrata (Linn.) Blume, Desmochaeta prostrata Linn. | Amaranthaceae |
| raktavalli | Ventilago madraspatana Gaertn. | Rhamnaceae |
| ramphala | Annona reticulata Linn. | Annonaceae |
| ramtil | Guizohia abyssynica Cass. | Asteraceae |
| rasna | Vanda roxburghii R Br. | Orchidaceae |
| Ratanjyot | Jatropha gossypifolia | Euphorbiaceae |
| renuka | Vitex agnus-castus | Verbenaceae |
| riddhi | Vigna cylindrica | Fabaceae |
| rishibhaka | Manilkara hexandra (Roxb.) Dubard, Mimusoops hexandra Roxb. | Sapotaceae |
| rohisha | Cymbopogon martini, Cymbopogon schoenanthus Linn. | Bignoniaceae |
| rohitaka | Tecomella undulata | Bignoniaceae |
| rohitka | Aphanamixis polystachya Parker, Amoora rohituka W&A | Meliaceae |
| rsabhaka | Microstylis muscifera | |
| rudantika | Cressa cretica Linn. | Convolvulaceae |
| rudraksha rudraksha | Elaeocarpus sphaericus (Gaertn.) K. Schum., Elaeocarpus ganitrus Roxb. | Elaeocarpaceae |
| rumamastaki | Pistacia lentiscus Linn. | Anacardiaceae |
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