Any of three trailing plants, Tradescantia albiflora, T. fluminensis, or Zebrina pendula, native to tropical America, having usually variegated foliage and widely grown as houseplants.

• 水竹草：三种蔓生植物白花水竹草，紫花水竹草或吊竹梅之任一种，原产于美洲热带地区，通常具有多种颜色的叶子，如同室内植物一般蔓延很大空间