WordNet (r) 3.0 (2006):

flowering crab
    n 1: derived from the Iowa crab and cultivated for its large
         double pink blossoms [syn: Bechtel crab, flowering
         crab]
    2: small tree or shrub of southeastern United States; cultivated
       as an ornamental for its rose-colored blossoms [syn:
       Southern crab apple, flowering crab, Malus
       angustifolia]