生活型

herb

形態特徵

• Annual herbs, stem prostrate, hairy, usually rooting and producing gemmae at nodes.
• Radical leaves rounded, 7–9 mm long, 6–8 mm wide, obtuse at apex, attenuate at base, chartaceous, few lobed or nearly so at margins, glabrous or occasionally sparsed simple or bifid hairs; petioles 5–7 mm long; cauline leaves oblong to oblong-lanceolate, 10–11 mm long, 7–8 mm wide, rounded at apex, attenuate at base; petioles 5–6 mm long.
• Flowers few, white, racemose, gemmae produced at apex of rachis when fruiting.
• Silique linear, 4–12 mm long, 2–9-seeded, stipitate; the stipes 1–1.5 mm long; seeds oblong, 1–1.5 mm long, pale brown to brown, lustrous.

分布

• 台灣 : known from high altitudes of 3,200–3,770 m in northern part of the island, very rare.
• 世界 : Korea, Japan and mainland China (Jilin).

引證標本

ILAN: Nanhutashan, Hsieh 1526.

參考文獻

• YING, SHAO-SHUN, Flora of Taiwan, second edition 2: 746. 1996.  (Fl. Taiwan 2nd edit., 台灣植物誌第二版)