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What’s a dichotomous key? Help

Berberidaceae

See list of 4 genera in this family
  • 1a. Plants woody, with stipular spines [Fig. 479]; perianth yellow
  • 1b. Plants herbaceous, without spines; perianth white to pink or green-yellow, green-purple, purple, or purple-brown (rarely yellow)

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 Show photos of:   Each photo represents one genus in this family.

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