Botanical Survey of India | Flora of India

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Corydalis changuensis D. Long in Notes R. Bot. Gard. Edinb. 42(1): 102, f. 4E. 1984.


Herbs, diffuse, much-branched, 15 - 30 cm high; rootstock slender, woody. Leaves many, mostly cauline, alternate, broadly ovate in outline, 1.5 - 2.5 x 1.7 - 3 cm, deeply and equally biternatisect; ultimate segments subequal, ovate, obovate to oblanceolate, cuneate at base, 1.5 - 3 mm broad; petioles 3 - 9 cm long; lateral petiolules 3 - 5 mm long, terminal ones up to 11 mm long. Racemes lax, few-flowered, 1.5 - 3 cm long; flowers yellow; lower bracts deeply lobed into 3 linear segments; upper bracts smaller, lanceolate, entire. Sepals suborbicular, dentate, less than 1 mm across. Petals yellow, tipped black; upper petal 13 - 15 mm long including spur, slightly curved upwards; spur 7 - 9 x 2 - 3.5 mm, with crest extending almost to tip of spur; lower petal equalling upper, near insertion with pedicel bearing short obtuse 1.2 - 1.4 mm long spur; nectariferous gland 4.5 - 5.5 mm long, extending up to two-third to three-fourth the length of spur. Capsules (immature) ellipsoid, 6 - 7 mm long.

Fl. & Fr. Sept.

Distrib. India: Gravelly moist slopes, 3600 - 3900 m. Sikkim (Changu district).

Endemic.

Notes. The most striking feature of this species is that in addition to the upper petal bearing a long spur, the lower petal also bears a short spur at base.




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