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Rhynchosia , Fl. Cochinch. 460. 1790. (conserved name); Baker in Hook.f., Fl. Brit. Ind. 2:220. 1876; Cooke, Fl. Bomb. Pres. (reprint ed,) 1:412. 1958; Parker, For. Fl. Punj. 3rd. ed. 163. 1956.
Climbing, prostrate or sometimes erect herbs or subshrubs. Leaf pinnately trifoliolate; leaflets conspicuously gland-dotted below, stipules present, stipels small. Inflorescence axillary or terminal; racemose or paniculate. Bracts present, bracteoles absent. Calyx lobes unequal, upper 2 jointed. Vexillum with small auricles, pubescent or glabrous. Stamens diadelphous, 9+1, vexillary stamen free, anthers uniform. Ovary 1-2-ovuled, style pubescent below, incurved, stigma terminal. Fruit oblong, compressed, 1-2-seeded.
A genus with about 150 species, distributed mainly in the warmer parts of the world, represented by 7 species in Pakistan.
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| 1 |
Vexillum glabrous externally |
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(2) |
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Vexillum pubescent externally |
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(3) |
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| 2 (1) |
Inflorescence umbellate, fruit less than 1.5 cm long (1.0-1.3 cm), not transversely striated |
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Rhynchosia capitata |
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Inflorescence an elongated raceme, fruit more than 1.5 cm (2.5-3.0 cm), not transversely striated |
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Rhynchosia himalensis |
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| 3 (1) |
Vexillum 1 cm or more long |
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(4) |
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Vexillum 4-6.5 mm long |
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(5) |
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| 4 (3) |
Erect shrub, petiole 1.2-3.8 cm long, leaflets whitish on lower side |
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Rhynchosia pseudo-cajan |
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Twining undershrub, petiole 5-10 cm long, leaflets not whitish on the lower side |
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Rhynchosia rothii |
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| 5 (3) |
Leaflets truncate to retuse, fruit more than 7 mm (c. 9 mm) broad |
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Rhynchosia schimperi |
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Leaflets not truncate or retuse, fruit less than 7 mm broad |
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(6) |
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| 6 (5) |
Leaflets mostly acute, pubescent above, punctate below (not silky), glands orange to black in colour |
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Rhynchosia minima |
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Leaflets silky on both sides, glands yellow, sometimes almost contiguous |
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Rhynchosia pulverulenta |
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Lower Taxa
Related Synonym(s):
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