spiderwort /ˈspaɪdəˌwɜːt/

• 1. 

  N any of various plants of the American genus Tradescantia, esp T. virginiana, having blue, purplish, or pink flowers and widely grown as house plants: family Commelinaceae 紫露草属; 长有蓝、紫、或粉色的花，作为房屋植物广泛生长 → see also tradescantia