羽裂叶荠 yu lie ye ji

Hutchinsia sisymbrioides Regel & Herder, Bull. Soc. Imp. Naturalistes Moscou 39(2): 99. 1866; Smelowskia alba B. Fedtschenko (1904), not (Pallas) Regel (1861); S. sisymbrioides (Regel & Herder) Lipsky ex Paulsen.

Plants biennial, (7-)12-45(-55) cm tall, uniformly pubescent throughout with minute dendritic trichomes. Stems simple or branched at base, erect or ascending. Basal leaves 2-pinnatisect, with 3 or 4 lateral lobes; petiole 1-3.5(-5) cm; leaf blade oblong or ovate in outline, 2-6(-8) × 0.7-2.5(-3) cm; ultimate segments oblong or obovate, 1-5(-10) × 0.5-2(-5) mm, margin entire, apex obtuse or rounded. Middle and upper cauline leaves 2-pinnatisect, petiolate, smaller than basal leaves, with 1 or 2 lateral lobes. Racemes ebracteate. Fruiting pedicels (4-)6-11(-13) mm, slender, divaricate, glabrous or glabrescent. Sepals 1.5-2(-2.5) × 0.7-0.8 mm, sparsely pubescent. Petals pale yellow, obovate, 2.5-4 × 1-1.5(-1.8) mm, attenuate to a clawlike base 0.5-1 mm, apex rounded. Filaments 1.2-2 mm; anthers ovate, ca. 0.3 mm. Ovules 4-8 per ovary. Fruit obovoid or ellipsoid or narrowly obovoid-ellipsoid, (2.5-)3.5-7 × 1-1.5 mm, slightly 2-angled; valves with a prominent midvein, apex obtuse; style slender, 0.2-0.5 mm; septum complete or basally perforated. Seeds brown, oblong, 1.2-1.5 × 0.6-0.8 mm. Fl. May-Aug, fr. Jun-Sep.

Slopes, crevices, forests; 1100-3600 m. Xinjiang [Kazakhstan, Tajikistan, Uzbekistan].