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48
symmetrical. Fruit not
a legume
170
Leaves evergreen,
leathery
171
170
Leaves deciduous, not
leathery
176
171
Leaves obviously hairy
at least beneath or
along the margin
172
171
Leaves hairless
173
172
Leaves >1 cm long.
Petals fused for more
than half of their
length
Rhododendron
hirsutum L.
172
Leaves <1 cm long.
Petals connate only at
the base
Rhodothamnus
chamaecistus (L.)
Rchb.
173
Leaves (at least the
largest ones) green
above, rust-coloured
beneath
Rhododendron
ferrugineum L.
173
Leaves green on both
surfaces
174