生活型

herb

形態特徵

• Annual or biennial herbs, stems 10–30 cm tall, branched, usually spreading-pilose in the lower part.
• Leaves lyrate-pinnate, 7–10-foliolate, the leaflets ovate to broadly ovate, petiolulate, entire or sometimes 1- to 5-lobed, the terminal one slightly larger, 3–15 mm long, 6–15 mm wide; leaflets of the upper leaves 3–11, lanceolate, sometimes denticulate or incised, sessile or subsessile.
• Flowers 10–20 in racemes, white; petals cuneate-obovate, 3–4 mm long, ca. 2-times longer than sepals.
• Siliques linear, erect, glabrous, ca. 2 cm long; seeds about 1 mm wide.

分布

• 台灣 : a very common weed throughout the island.
• 世界 : Abundant in temperate regions of the northern hemisphere, Japan, Ryukyus and whole China.

引證標本

TAIPEI: Tanshui, Kawakami & Shimada 5826; Taiwan Univ. Campus, Ying 757. TAOYUAN: Chiaopanshan, Mori & Shimada s. n. 1909. NANTOU: Chitou, Ying 797; Tsunfeng, Ying 1110. CHIAYI: Alishan, Huang 4972.

引用文獻

• YING, SHAO-SHUN, Flora of Taiwan, second edition 2: 753. 1996.  (Fl. Taiwan 2nd edit., 台灣植物誌第二版)