Corydalis juncea - Rush Corydalis

Rush Corydalis is a perennial herb, 10-45 cm tall, hairless. Stems and leaf-stalks of radical leaves are narrowed to thread-like underground base. Stems are 1-5, simple, with 0-2 leaves. Stem leaves simple, stalkless; blade lanceshaped or linear-lanceshaped, 1-5 cm x 1-4 mm, entire. Flowers are borne in raceme 5-20 cm, 10-30-flowered. Petals are pure yellow, inner petals with sharply contrasting black-purple tip; upper petal ovate, 10-15 mm, crest decurrent on spur; spur cylindric, 5-7 mm; nectary about 1/2 as long as spur; lower petal obovate, 7-9 mm; inner petals 6-8 mm. Sepals are 0.1-0.8 mm, shallowly toothed. Bracts are linear or linear-lanceshaped, 5-20 mm, entire. Flower-stalks are 5-15 mm, recurved in fruit. Capsules are oblong, 10-13 x about 2 mm, 8-10-seeded. Rush Corydalis is found in alpine grasslands, often in shrubs in pastures, at altitudes of 3600-4400 m, in from Nepal to NE India and S Xizang. Flowering: June-September.