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(Upload on September 3 2020) [ 日本語 | English ]

Oenothera L. (マツヨイグサ) Kidachimatsuyoigusa (キダチマツヨイグサ, 木立待宵草), narrow-leaved sundrops or narrowleaf evening primrose Akajikumatsuyoigusa (アカジクマツヨイグサ, 赤軸待宵草) Lifeform: perennial forb with 20-90 cm tall Distribution: native to eastern North America Habitat: open habitats, including dry woodlands, rock outcrops and moist savannas

Use: gardening, street flower, etc. ssp. glauca (Michx.) Straley (シモフリマツヨイグサ), syn. Oenothera glauca Michx. Varieties: many, including cultivars, but controversial cv. Fyrverkeri

Oenothera fruticosa in Hokkaido

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[1-3] on a sandbar along Toyohira River, Sapporo, on July 14 2020.