Tradescantia X andersoniana
Tradescantia X diffusa
The spiderwort is a perennial plant that grows 1 to 2 feet tall and is commonly found individually or in clumps in wooded areas and fields. The plant has long thin bladelike leaves that grow to just over a foot long; the plant's flowers are usually purple with three petals and yellow stamens, though some varieties have rose or white flowers.
Though sometimes accounted a weed, spiderwort is cultivated for borders and also used in containers. Where it appears as a volunteer, it is often welcomed and allowed to stay.
The Wandering Jew is in the same family (Commelinaceae) as the spiderwort.