Rhododendron calendulaceum, the flame azalea, is a species of Rhododendron native to North America. All parts of this plant are poisonous to humans.
It is a deciduous shrub, 120–450 cm tall. The leaves are simple, 3–7 cm long, slightly dull green above and villous below. The arrangement is generally alternate, however they appear whorled towards the tips of the branches.
The flowers are 4–5 cm long, usually bright orange, but can vary from pastel orange to dark reddish-orange. These non-fragrant ...