an American plant whose flowers bear long hairy stamens 紫露草
Genus Tradescantia, family Commelinaceae: several species, including the blue-flowered North American T. virginiana, from which many cultivars have been derived 紫露草属,鸭跖草科: 数种,包括开蓝色花、产生了许多栽培品种的北美紫露草