Spider lily (Tradescantia pallida).
Tradescantia pallida is native to Mexico. In tropical and semi-tropical areas, it is commonly grown outdoors as a popular ground cover. It is a tender perennial that is winter hardy to USDA Zones 10-11. It is commonly called purple heart. 'Purpurea' is a cultivar that features purple foliage which is superior to that of the species.
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