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Corydalis gigantea Trautv. et C.A. Mey.
Taproot and rhizome thick, tuber-like, 60-70 cm deep, 6-10 cm diam. Stems up to 120 cm, branched, with 3 bracts near the base and 5 large green leaves. Leaf blade 2- or 3-ternate. Lobes of leaflets oblong or linear. Racemes dense or sometimes loose, 10-25 cm long, branched, with small but numerous dark pink flowers. V - early spring to mid-summer (in St. Petersburg April to July). Fl - May or June for 3-4 weeks. Fr - July. P - by seed, sown immediately when ripe, or by division of tuberous rhizomes. Requires a partly shade site. Z 4. New.
Far East (Ussuryiskiy, Zeya-Bureinskiy, Udskiy and Okhotskiy regions and Sakhalin Island), northern China and Korea. In open woodlands, in open coniferous forests, mainly in moist places.
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