#yucca  any of several evergreen plants of the genus Yucca having usually tall stout stems and a terminal cluster of white flowers; warmer regions of North America
  supertype:  #shrub__bush  a low woody perennial plant usually having several major branches
  member of:  #genus_Yucca
  subtype:  #Yucca_aloifolia__Spanish_bayonet  a stiff yucca with a short trunk; found in the southern United States and tropical America; has rigid spine-tipped leaves and clusters of white flowers
  subtype:  #Spanish_bayonet__Yucca_baccata  tall woody-stemmed yucca of southwestern United States and Mexico having stiff swordlike pointed leaves and a large cluster of white flowers
  subtype:  #Joshua_tree__Yucca_brevifolia  a large branched arborescent yucca of southwestern United States having short leaves and clustered greenish white flowers
  subtype:  #Yucca_carnerosana__Spanish_dagger  arborescent yucca of southwestern United States and northern Mexico with sword-shaped leaves and white flowers
  subtype:  #soapweed__soap_tree__Yucca_elata  tall arborescent yucca of southwestern United States
  subtype:  #Adam's_needle-and-thread__Adam's_needle__spoonleaf_yucca__spoonleafyucca__needle_palm__Yucca_filamentosa  yucca with long stiff leaves having filamentlike appendages
  subtype:  #Yucca_glauca__bear_grass  yucca of west central United States having a clump of basal grasslike leaves and a central stalk with a terminal raceme of small whitish flowers
  subtype:  #Spanish_dagger__Yucca_gloriosa  yucca of southeastern United States similar to the Spanish bayonets but with shorter trunk and smoother leaves
  subtype:  #bear_grass__Yucca_smalliana  yucca of southern United States having a clump of basal grasslike leaves and a central stalk with a terminal raceme of small whitish flowers
  subtype:  #Our_Lord's_candle__Yucca_whipplei  yucca of southwestern United States and Mexico with a tall spike of creamy white flowers

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