Corydalis buschii Nakai

Rhizome creeping with tubers of irregular form. Stem usually single, erect, 10-25 cm. Leaves 3-4, long-petiolate 3- or 4-ternate, blue-green. Flowers 15-25 in racemes, pink or purple. Corolla erect, 25-35 mm long, with long spur. V - early spring to mid-summer. Fl - May. Fr - June-July. P - by seed sown immediately when ripe, also very easy by division (by annual tubers, by stolons). Z 5. New.

Far East (southern regions), Japan, China and Korea. In open woodlands, moist sites.