生活型

herb

形態特徵

• Annual or biennial herb, often coarsely hispid-pilose, 30–60 cm tall, with slender stems, decum-bent at base; branches obliquely ascending.
• Lower leaves pinnately cleft or parted, terminal lobe largest, petioles 7–9 cm long; cauline leaves linear or hastate, petioles shorter.
• Racemes terminal,densely flowered; flowers yellowish; petals spatulate, 7–8 mm long; stamens 6, about 5 mm long.
• Siliques terete, 4–8 mm long, l–1.2 mm across, minutely puberulent; pedicels 0.8–1 cm long; seeds many, minute.
• N. K. B. Robson of the British Museum, having matched the Taiwan plant with those from western Asia, stated that it seems to be a form in which the leaves are less regularly pinnatifid than usual.

分布

• 台灣 : a naturalized weed.
• 世界 : Widely distributed in western Asia, northern Africa and southern Europe.

引證標本

TAIPEI: Taipei city, Ying 983.

參考文獻

• YING, SHAO-SHUN, Flora of Taiwan, second edition 2: 768. 1996.  (Fl. Taiwan 2nd edit., 台灣植物誌第二版)