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

Rubiaceae >

Leaves apparently whorled or opposite with interpetiolar stipules Rubiaceae
consider the other alternative
Flowers united by their calyces into simple or compound heads
consider the other alternative
Herbs or small shrubs
consider the other alternative
Heads simple, arranged in an umbel Pomax