a plant, Oenothera biennis, having yellow flowers that open at nightfall.
any of various plants of the same or related genera.
any onagraceous plant of the genus Oenothera, native to North America but widely cultivated and naturalized, typically having yellow flowers that open in the evening
noun 1. the plant family Onagraceae, characterized by herbaceous plants having simple leaves, showy flowers with four sepals and four petals, and fruit in the form of a berry or a capsule, and including the clarkia, evening primrose, fuchsia, and willow herb.
- Evening primrose oil
noun 1. an oil, obtained from the seeds of the evening primrose, that is claimed to stimulate the production of prostaglandins noun a liquid from the plant Oenothera biennis whose flowers open in evening and are a source of y-linolenic acid, used as an herbal treatment and dietary supplement for various disorders
[eev-ningz] /ˈiv nɪŋz/ adverb 1. in or during the regularly: She worked days and studied evenings. [eev-ning] /ˈiv nɪŋ/ noun 1. the latter part of the day and early part of the night. 2. the period from sunset to bedtime: He spent the evenings reading. 3. Chiefly Midland and Southern U.S. the time between noon […]
noun 1. .