a North American grosbeak, Coccothraustes vespertina, having yellowish, black, and white plumage.
noun, Anglican Church. 1. (def 1).
noun 1. a plant, Oenothera biennis, having yellow flowers that open at nightfall. 2. any of various plants of the same or related genera. noun 1. 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