Oenothera glazioviana

黃花月見草

naturalized

Oenothera glazioviana Micheli

名彙資訊

特徵描述

典藏標本

數位照片

分布位置

相關資訊

Micheli. 1882. Flora Brasiliensis 13(2): 178. (Fl. Bras.)

Oenothera erythrosepala Borbas

Ying. 1980. Coloured illustrations of herbaceous plats of Taiwan 1: 145. (Col. Ill. Herb. Pl. Taiwan)

herb

Erect biennial herb with basal overwintering rosette, stem 50–150 cm tall; pubescence densely strigillose, also with long, spreading hairs, usually with red blister-like bases, and glandular hairs on inflorescence.
Leaves elliptic to lanceolate, 5–15 cm long, crinkled toward base, dentate to subentire.
Flowers numerous in dense spikes; floral tube 35–50 mm long, straight in young buds; sepals 28–45 mm, reddish, free tips in bud 5–8 mm; petals 35–50 mm, yellow fading reddish orange; anthers 10–12 mm long; pollen 50% fertile; stigma elevated above anthers.
Capsule narrowly lanceolate, generally straight, 20–35 mm long, 5–6 mm wide. Seeds in 2 rows per locule, 1.3–2 mm long, angled, reticulate and irregularly pitted, ca. 50% abortive.
2n = 14.

Flowers Jul - Sep; fruit Aug - Oct.

台灣 : Known from Taiwan at 1,950–2,350 m alt. Disturbed open places, edges of cultivated fields. Commonly cultivated.
世界 : Apparently originating in Europe, following hybrid origin between two N American species; now widely distributed in Asia, Europe, Australia, N and S America, and Africa;