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

Acanthaceae

Corolla yellow to orange with a dark throat Acanthaceae
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Plants not as above
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Corolla colouring not as above; herbs or shrubs
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Corolla lobes very unequal appearing 2-lipped
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Calyx of 4 lobes the upper lobe functioning as the upper lip of the corolla; corolla 3-lobed, 4–5 cm long Acanthus
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Flower not as above; corolla up to 3 cm long