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FOC | Family List | FOC Vol. 8 | Brassicaceae | Cardamine

9. Cardamine prorepens Fischer ex de Candolle, Syst. Nat. 2: 256. 1821.

浮水碎米荠 fu shui sui mi ji

Cardamine borealis Andrzejowski ex de Candolle; C. pilosa Willdenow; C. pratensis Linnaeus var. prorepens (Fischer ex de Candolle) Maximowicz; C. pubescens Steven.

Herbs perennial, 15-50(-60) cm tall, glabrous or pubescent. Rhizomes prostrate, stoloniferous. Stems stout, erect or decumbent, simple, glabrous or pubescent, 2-5(-8)-leaved. Rhizomal leaves 3-11-foliolate, 2-12 cm; petiole (0.5-)1.5-8(-10) cm; terminal leaflet ovate, oblong, or narrowly obovate, 0.5-2(-3) cm × 4-13(-20) mm, with a petiolule 2-10 mm, margin crenate or repand; lateral leaflets 1-5 pairs, often sessile, similar to terminal ones but smaller. Cauline leaves 3-5-foliolate, often glabrous; petiole to 7 cm, not auriculate at base; terminal leaflet elliptic, oblong, or rhomboid, 1-3.5(-5) × 0.5-1.8(-2.5) cm, with a petiolule to 2.5 cm, base cuneate or obtuse, margin remotely crenate, dentate, or repand, apex obtuse; lateral lobes obliquely ovate or oblong, sessile or shortly petiolulate, similar to terminal one. Racemes 5-15-flowered. Fruiting pedicels 0.5-3 cm. Sepals ovate, 3-4.5 × 1-2 mm. Petals white, narrowly obovate, 0.9-1.5 cm × 5-7 mm, base cuneate, apex rounded or subemarginate. Median filament pairs 5-7 mm, lateral pair 3-5.5 mm; anthers oblong, 1-1.8 mm. Ovules 12-16 per ovary. Fruit linear, 1.5-4 cm × 1.5-2 mm; valves flat, glabrous or pilose; style slender, 2-4 mm. Seeds brown, ovate or suboblong, 1.5-2.2 × 1-1.6 mm, wingless. Fl. May-Jul, fr. Jul-Aug.

River or streamsides, meadows; 1000-1700 m. Heilongjiang, Jilin, Nei Mongol [Korea, Mongolia, Russia].


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