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  Crotalaria trifoliastrum
  Family: FABACEAE/LEGUMINOSAE (Subfam.: Papilionoideae)
  Citation:  Crotalaria trifoliastrum Willd., Sp. Pl. 3: 983. 1802; Hook. f., Fl. Brit. India 2: 82. 1876; Sanjappa, Legumes Ind. 131. 1992; Ansari, Crotalaria India 312. 2008. Lupinus trifoliatus Rottl. ex Willd., Gesn. Naturf. Fr. Berl. Neuv. Schr. t. 5. 1803, non Cav. 1791. Crotalaria medicaginea DC., Prodr. 2: 133. 1825, non Lam. 1786.
  Malayalam Name(s):
  Tamil name(s):
  English name(s):
  Description: Erect, much branched, perennial herbs or undershrubs, up to 1 m tall; branches slender, finely downy. Leaves alternate, 3-foliolate; leaflets membranous, 1.2-2.5 cm long, obovate or obovate-oblong, acute or cuneate at base, obtuse and emarginate at apex, glabrous above, obscurely silky beneath; petioles 2.5-4.0 cm long, exceeding the leaflets, puberulous; stipules minute, setaceous; Racemes terminal and lateral, elongated, 10-15 cm long; peduncles silky hairy. Flowers 12-40; pedicels short; bracts minute, setaceous. Calyx 3.0-3.5 mm long, finely silky, lobes linear, twice the length of the tube, tube ca 2.5 mm long; upper lobes broader than the lower lobes. Corolla yellow; vexillum obovate, 10-13 x 8-9 mm, obtuse at apex, glabrous (rarely slightly puberulous without); wing petals linear-oblong, ca 11 x 4 mm, rounded at apex; keel petals ca 12 mm long, beak spirally twisted. Staminal sheath ca 1.5 mm long; free filaments 4-6 mm long; anthers linear or ovate. Ovary ca 4 mm long, silky at base; style up to 8 mm long, hairy in the upper half. Pods sessile, subquadrangular, 3-4 mm in diam, beaked, thinly silky; seeds 2, reniform, ca 2 mm long, black, minutely warted.
  Habit: Shrub
  Flowering & Fruiting: August-December
  District(s): Pathanamthitta
  Habitat: Along the roadsides in the plains
  Distribution: India and Bhutan
  Aquatic: No
  Epiphyte(s): No
  Saprophyte: No
  Stem parasite: No
  Root parasite: No
  Flower colour(s): Yellow
  Weed: No
  Monocot/Dicot: Dicotyledonous Plants
  Exotic: Yes
  Garden: No
  Edible: No
  Vegetable: No
  Endemic to:
  IUCN status:
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