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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 or lobes 6, unequal
consider the other alternative
Three outer
perianth
segments small; inner ones larger
consider the other alternative
Flowers
bisexual
. Inner fruiting
perianth
segments much longer than
nut
. Leaf shape variable,
hastate
to
lanceolate
.
choose this alternative
reject this alternative
Leaf bases
cordate
,
cuneate
or rounded. Inner
perianth
segments leathery, often toothed, not inflated
Rumex
choose this alternative
reject this alternative
Leaf bases
hastate
or
sagittate
often
acute
. Inner
perianth
segments inflated and papery
Acetosa