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

Vegetative key to the families

Vegetative Key Vegetative key to the families
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OCHREA (sheath) Present around the stem and petiole, formed from fused stipules (Fig. 25). Leaves alternate. Herbs Polygonaceae
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Perianth segments or lobes 6, unequal
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Three outer perianth segments spiny; inner ones smaller Emex
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Three outer perianth segments small; inner ones larger