Home >> Checklist: Asclepias of Arizona >> Previous version of Key >> Identification Key (new version): Asclepias of Arizona
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Plant
habit
shrubs
herbaceous
aquatic & OBL wetland species
Leaves
arrangement/phyllotaxy
alternate
opposite
whorled
leaf attachment
sessile or nearly so
leaf stalk (petiole) clearly present
leaf (leaflet) margin
entire
revolute
leaf(let) base
attenuate
clasping
cordate
cuneate
obtuse
rounded
truncate
broadest point of leaf (leaflet)
broadest at middle
broadest below middle
Inflorescence
type
solitary
panicle
cymose
Flower
principal flower color
white or cream
purple
green
yellow
orange
red
pink
brown
corolla (petal) fusion
petals separate
fused, at least toward base
Stem & Twigs
succulent vs non-succulent
succulent
not succulent