Corydalis pseudojuncea

Perennial herbs, about 12-30 cm tall. Stem slender, weak and glabrous. Root stocks fascicled, thick, spindle-shaped, storage roots. Radical leaves few, normally solitary, biternate and rarely tri-ternate, leaflets deeply incised narrow, broadly obovate in outline, about 2-5.5 x 4-5 cm across, green glabrous above, veins prominent beneath, petiole slender, sheathed at the base, nearly as long as stem, about 8-25 cm long, with 3 leaflets, broadly obovate-oblong, base cuneate, apex acute, petiolules slender about 1-3 cm long. Cauline leaves absent or about 2, linear lanceolate, margin entire, 3-5 nerved about 2-6 cm long, petiole sessile. Inflorescence raceme, terminal, about 2-5 flowered, dense, about 2-4 cm long, bracts linear-lanceolate to narrow lanceolate, base cuneate, margin entire, apex long caudate, about 30-50 mm long. Flowers bisexual, zygomorphic, yellow tipped with purplish black at the apex and flushed with greenish brown, pedicels 3-5 mm long, Sepals 2, minute, margin erose, petals 4, upper petal broadly dorsally crested, about 10-12 mm long, spurred cylindric straight somewhat upcurved curved near apex, slightly membranous, lower petal crested, oblanceolate, about 14-17 mm long, spur attenuate, nectar glands 2/3rd as long as the spur, inner petals with purplish black on the apex, becoming purplish with age, about 6-7 mm long. Stamens 6, in 2 bundles, anthers dimorphous. Ovary unilocular, hypogynous, glabrous, ovules many, style filiform, curved at apex, about 2.5 mm long, stigmas broad with expanded filaments. Fruits capsule, ellipsoid-oblong, narrow near the base, apex subobtuse, about 19-23 x 2-2.5 mm across, dehiscing when mature by tumid or inflated valves, with persistent style. Seeds about 8-10, biseriate, suborbicular, about 1 mm across, smooth, shining black.