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Published In: Flora Cochinchinensis 2: 425 [as Phynchosia], 460. 1790. (Sept 1790) (Fl. Cochinch.) Name publication detailView in BotanicusView in Biodiversity Heritage Library

Project Name Data (Last Modified On 6/2/2011)
Acceptance : Accepted
Project Data     (Last Modified On 6/3/2011)
General/Distribution: 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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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.

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1 Vexillum glabrous externally (2)
+ Vexillum pubescent externally (3)
2 (1) Inflorescence umbellate, fruit less than 1.5 cm long (1.0-1.3 cm), not transversely striated Rhynchosia capitata
+ Inflorescence an elongated raceme, fruit more than 1.5 cm (2.5-3.0 cm), not transversely striated Rhynchosia himalensis
3 (1) Vexillum 1 cm or more long (4)
+ Vexillum 4-6.5 mm long (5)
4 (3) Erect shrub, petiole 1.2-3.8 cm long, leaflets whitish on lower side Rhynchosia pseudo-cajan
+ Twining undershrub, petiole 5-10 cm long, leaflets not whitish on the lower side Rhynchosia rothii
5 (3) Leaflets not truncate or retuse, fruit less than 7 mm broad (6)
+ Leaflets truncate to retuse, fruit more than 7 mm (c. 9 mm) broad Rhynchosia schimperi
6 (5) Leaflets mostly acute, pubescent above, punctate below (not silky), glands orange to black in colour Rhynchosia minima
+ Leaflets silky on both sides, glands yellow, sometimes almost contiguous Rhynchosia pulverulenta
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