生活型

herb

形態特徵

• Erect annual herb with simple and stellate hairs; stems 15–40 cm tall, branched.
• Radical leaves tufted, petiolate, entire or pinnatilobed to pinnatipartite, with alternate, unequal segments; cauline leaves lanceolate, sessile, auriculate-sagittate, dentate-pinnatipartite, clasping.
• Flowers in racemes, many, white; pedicels slender; sepals 4, oblong, with pale margins; petals obovate, 2–2.5 mm long, clawed.
• Silicles obtriangular, laterally flattened, 6–7 mm long, 5–6 mm wide, notched, apiculate; pedicels slender, 10–20 mm long, glabrous. Seeds 10–20 in each cell, ellipsoid.

分布

• 台灣 : in waste places, yards, and along roadsides throughout the island.
• 世界 : Europe, Siberia, Mongolia, Korea, Japan, Ryukyus and China.

引證標本

TAIPEI: Tanshui, Ying 789; Hsintien, Shimizu s. n. 1914. HSINCHU: Kawakami & Shimada s. n. 1907. MIAOLI: Kawakami & Mori s. n. 1908. NANTOU: Chitou, Ying 816. PENGHU: Penghu, Kudo & Mori s. n. 1930. TAITUNG: Hsinchiang, Shimada s. n. 1908.

參考文獻

• YING, SHAO-SHUN, Flora of Taiwan, second edition 2: 751. 1996.  (Fl. Taiwan 2nd edit.)