Tradescantia pallida (Setcreasea pallida)
COMMON NAME  | Purple secretia, purple-heart or purple
  queen  | 
TYPE  | Groundcover  | 
FAMILY  | Commelinaceae  | 
NOTES  | A sprawling,
  evergreen ground cover produces deep purple foliage and stems when grown in
  full sun. The rather brittle stems, a foot or more high, have a tendency to
  flop over, creating a trailing effect  | 
GEOGRAPHIC REGION  | Mexico  | 
NATIVE
  HABITAT  | Understory
  of disturbed forests, along roadsides, riparian areas and coastal forests  | 
WEB SOURCES  |