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Keys
Vascular plant groups
Club mosses
Ferns
Vegetative key to families
Gymnosperms
Flowering plants
Genera
Families
Rhamnaceae >
Petals or
perianth
segments 4–5
Rhamnaceae
consider the other alternative
Leaves mostly
opposite
, sometimes slightly displaced
consider the other alternative
Tree
with well developed leaves
Emmenosperma