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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
consider the other alternative
OCHREA
(
sheath
) Present around the stem and
petiole
, formed from
fused
stipules (Fig. 25). Leaves
alternate
. Herbs
Polygonaceae
consider the other alternative
Perianth
segments 5, ± equal
consider the other alternative
Flowers mostly
bisexual
.
Calyx
enlarged but not otherwise changed at fruiting stage
consider the other alternative
Nut
much exceeding the
perianth
Fagopyrum