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Keys
  • Vascular plant groups
  • Club mosses
  • Ferns
  • Vegetative key to families
  • Gymnosperms
  • Flowering plants
  • Genera
  • Families

Acanthus L. >

Calyx of 4 lobes the upper lobe functioning as the upper lip of the corolla; corolla 3-lobed, 4–5 cm long Acanthus