PlantsFlowering PlantsRose FamilyApples — Genus Malus
Small tree. Leaves alternate, simple.
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Southern Crab Apple —  Malus angustifolia [1]
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Prairie Crab Apple —  Malus ioensis [1]
Evidence that species is found in Texas:
  1. USDA Plants Database, advanced search for Texas plants from the United States Department of Agriculture.