独具特色的白雪姬白雪姬(Tradescantiasillamontana)又名白绢草,为鸭跖草科鸭跖草属(也称重扇属或紫露草属)多年生肉质草本植物。植株丛生,茎直立或稍匍匐,高15～20厘米,短粗的肉质茎硬而直,被有浓密的白色长毛。叶互生,绿色或褐绿色,稍具肉质,长卵形,叶长约2厘米,宽1厘米,也被有浓密的白毛。小花淡紫粉色,着生于茎的顶部。 The unique Tracycantiasillamontana, also known as white silk grass, is a member of Commelina communis (also known as genus Scirpus) and perennial fleshy herbaceous plants. Clumps of plants, stems upright or slightly creeping, 15 to 20 cm high, stout fleshy stalk straight, thick white hair. Leaves alternate, green or brownish green, slightly fleshy, long oval, leaf length of about 2 cm, 1 cm wide, was also thick white hair. Flowers lilac pink, was born in the top of the stem.