| Noun | 1.white avens - avens of Virginia having pale or greenish yellow flowersbennet, Geum virginianumavens - any of various perennials of the genus Geum having usually pinnate basal leaves and variously colored flowers | | 2. white avens - North American white-flowered avensGeum canadense, bennetavens - any of various perennials of the genus Geum having usually pinnate basal leaves and variously colored flowers |