生活型

herb

形態特徵

• Herbs to 50 cm tall. Stem simple or branched, glabrous.
• Cauline leaves alternate; blade lanceolate to oblong, 2-4 × 0.7-1.5 cm, base truncate to auriculate, margin entire to dentate, apex acute. Inflorescence a raceme; pedicel ca. 0.8 cm long toca. 1.5 cm when fruiting. Sepals 4, ovate to oval, 1.5-2 × 1-1.3 mm, margin white.
• Petals 4, white, spatulate, ca. 2 × 1 mm, apex rounded. Anthers 6, 1.5-2 mm long. Pistil 1; ovary ca. 1 × 1 mm.
• Silicles suborbicular, ca. 1 cm long, apex emarginate to notched, to 5 mm deep; wings 1–1.5 mm wide at base, 2–5 mm wide at apex; seeds ovoid, ca. 1 mm long.

分布

• 台灣 : Specimens were collected along the roadside at Wuling Farm, near the trail head of Syueshan.
• 世界 : native to temperate regions of Eurasia and Africa, and was introduced into Australia, and North and South America.

引證標本

Taichung Hsien, Hoping Hsiang, Wuling Farm, Trail head of Syueshan, Apr. 24, 2006, M.-J. Jung y042401 (NCKU), May 10, 2006, M.-J. Jung y051001 (NCKU).

引用文獻

• Ming-Jer Jung, Gwo-Ing Liao and Chang-Sheng Ku, Taiwania 51(4): 308-316. 2006.