Oenothera stricta
待宵草
naturalized
Oenothera stricta Ledeb. ex Link
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
Ledeb. ex Link, Enumeratio Plantarum Horti Regii Berolinensis Altera 1: 377. 1821. (Enum. Hort. Berol. Alt.)
台灣首次記錄發表文獻
Hoch & Wagner, Flora of Taiwan, second edition 3: 965. 1993. (Fl. Taiwan 2nd edit., 台灣植物誌第二版)
異名
無
各語言俗名
無
參考資料
特徵描述
生活型
herb
形態特徵
- Annual or biennial herb with basal rosette, stems erect or rarely decumbent, 25–150 cm tall, unbranched or nearly so; pubescence strigillose, often villous and also with glandular hairs.
- Cauline leaves very narrowly elliptic to lanceolate, 2–10 cm long, flat or slightly undulate, serrate.
- Flowers few in upper axils; floral tube 20–45 mm, straight in young buds; sepals 14–20 mm, with distinct tips 1–3 mm; petals 15–25(–35) mm, yellow, often with red spot at base, fading reddish orange; anthers 7–11 mm long; pollen ca. 50% fertile; stigma surrounded by anthers at anthesis or slightly elevated above them.
- Capsule cylindrical, slightly wider towards apex, 30–40 mm long 3–4 mm wide. Seeds in 2 rows per locule, ellipsoid, 1.3–1.8 mm, short-beaked.
- 2n = 14.
物候
Flowers May-Sep; fruit Jun-Oct.
分布
- 台灣 : Known from only one locality at 1,900 m in Taiwan (Ilan Co.). Plants in Taiwan are referred to subsp. stricta, which is characterized by usually sharply serrate leaves and spreading, sparsely villous floral bracts. This is an autogamous, permanent translo
- 世界 : Native to Chile and Argentina, S America; now naturalized on all continents except Antarctica;
引證標本
ILAN: Taipingshan, Peng 7836, 10336.