找植物
找標本
電子書
名彙資訊
學名發表文獻
Greene, Manual of the Botany of the Region of San Francisco Bay 230. 1894. (Man. Bot. San Francisco)
台灣首次記錄發表文獻
Peng & Lammers, Botanical bulletin of Academia Sinica 39: 214. fig. 1. 1998. (Bot. Bull. Acad. Sin.)
異名
無
各語言俗名
無
參考文獻
特徵描述
生活型
herb
形態特徵
- Stems 10–80 cm tall.
- Leaves ovate or broadly elliptic, 0.5–3.5 cm long, 0.7–1.2 cm wide, base cordate, sessile.
- Flowers in lower portion of inflorescence cleistogamous; calyx lobes triangular, lanceolate or ovate, 4–9 mm long; corolla of chasmogamous flowers 8–13 mm long; ovary 3-celled.
- Capsule oblong or clavate, 4–7 mm long; seeds elliptic, compressed, 0.5–0.6 mm long.
- Chromosome number n = 14, 28.
分布
- 台灣 : recently naturalized in low elevation disturbed site.
- 世界 : Widely distributed in North America, from southern Canada to Guatemala, sparingly naturalized in Asia and South America.
引證標本
HSINCHU: Chutung, Peng 13708.








