noun
: any of several plants of the family Onagraceae and especially of the genus Oenothera ; usually : a coarse biennial herb ( O. biennis ) with yellow flowers that open in the evening
noun
: any of several plants of the family Onagraceae and especially of the genus Oenothera ; usually : a coarse biennial herb ( O. biennis ) with yellow flowers that open in the evening
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012