Oenothera laciniata

裂葉月見草

naturalized

Oenothera laciniata J. Hill

名彙資訊

特徵描述

典藏標本

數位照片

分布位置

相關資訊

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名彙資訊

學名發表文獻

J. Hill, The Vegetable System 12(Appendix): 64. pl. 10. 1767. (Veg. Syst.)

台灣首次記錄發表文獻

Peng, Botanical bulletin of Academia Sinica 27: 45. fig. 1 & 2. 1986. (Bot. Bull. Acad. Sin., 中央硏究院植物學彙刊)

異名

無

各語言俗名

中

美國見月草. 待宵花. 待宵草. 小待宵草.
英

American oenothers. South american evening-primrose. Showy evening-primrose. Eveningprimrose. Cutleaf evening-primrose.

參考資料

Wu, Yang, Teng, Chang, Yang and Hsieh, Taiwania 55(2): 153. 2010.
Chen, The Invasive Alien Plant in Miaoli 222. 2006. (Invas. Al. Pl. Miaoli, 苗栗地區重要外來入侵植物圖鑑)

特徵描述

生活型

herb

形態特徵

Taprooted annual or short-lived perennial herb usually with basal rosette; stems erect to decumbent, 5–50 cm long, usually branched, sparsely to moderately strigillose or villous, with glandular hairs above.
Cauline leaves narrowly obovate to narrowly elliptic, 2–10 cm long, lobed, dentate or sometimes subentire.
Flowers few in upper axils; floral tube 15–35 mm, curved upward in young buds; sepals 5–15 mm, with distinct tips 1–3 mm; petals 5–13(–20) mm, pale yellow or yellow fading pale orange; anthers 2–6 mm long; pollen ca. 50% fertile; stigma surrounded by anthers at anthesis.
Capsule cylindrical or tapered toward apex, 25–50 mm long. Seeds in 2 rows per locule, ellipsoid to subglobose, 0.8–1.8 mm; surface pitted.
2n = 14

物候

Flowers Apr-Sep; fruit May-Nov.

分布

台灣 : Common in northern sandy seashore or disturbed open places in the lowland, with an exceptional collection from Taipingshan at ca. 1300m alt. Oenothera laciniata is a self-compatible, autogamous, permanent structural heterozygotic species.
世界 : Native to eastern N America; along with O. biennis and O. stricta, the most widely naturalized species in the genus, found in Asia, Europe, Australia, the Pacific Islands, S America, and southern Africa.

引證標本

TAIPEI: Pali, Leu 1013; Wanli, Wang 969. ILAN: Tongkang, Peng 7740; Pailing, Taipingshan, Lin 2. TAOYUAN: Tayuan, Peng 7725; Kuanyin, Leu 1718. HSINCHU: Yulochi, Peng 13677. TAICHUNG: Tachiachi, Chingshui, Wang 1241.