A grand roundup of evening primrose's other names: it turns out it goes by all of these

The genus and family of evening primrose

Evening primrose is a species in the genus Oenothera, family Onagraceae, an upright, robust biennial herb.

Other names for evening primrose

Evening primrose is also called late cherry grass, evening primrose grass, mountain sesame, wild sesame.

The origin of evening primrose

Evening primrose is native to North America, was introduced to Europe early on, and later spread rapidly through temperate and subtropical regions. It is cultivated in Northeast China, North China, East China and Southwest China, and has long since become naturalized.

Morphological characteristics of evening primrose

Evening primrose has a basal rosette of leaves pressed close to the ground, stems 50-200 cm tall, with soft hairs and spreading long hairs, and often mixed with glandular hairs at the upper ends of the stems and branches.

The leaves are oblanceolate, sharply pointed at the tip, wedge-shaped at the base, with irregular shallow blunt teeth along the edges, and petioles 0-15 mm long.

The inflorescence is spicate, unbranched, or with secondary lateral inflorescences below the main spike; the bracts are leaf-like, the flower buds are conical-oblong, yellow-green or tinged with red when flowering, covered with mixed soft hairs, spreading long hairs and short glandular hairs.