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Flame Azalea

Rhododendron calendulaceum


Rhododendron calendulaceum (Flame Azalea), is a species of Rhododendron native to the Appalachian Mountains in the eastern United States, ranging from southern New York to northern Georgia. It is a deciduous shrub, 120–450 cm tall. The leaves are 3–7 cm long, slightly dull green above and villous below. The flowers are 4–5 cm long, usually bright orange, but can vary from pastel orange to dark reddish-orange.


Dry, rocky, mountain woods; heath balds. This one was photographed at the Visitor's Center at Caesars Head State Park in South Carolina.


Rhododendrons contain poisonous substances and should not be ingested by humans or animals. Honey made from flowers also may be toxic. POISONOUS PARTS: All parts. Highly Toxic, May be Fatal if eaten. Symptoms include salivation, watering of eyes and nose, abdominal pain, loss of energy, depression, nausea and vomiting, diarrhea, weakness, difficult breathing, progressive paralysis of arms and legs, coma. Toxic Principle: Andromedotoxin.

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1 Comment

Saladmander 8 years ago

Glad you posted this-- I have one right by my porch. Never knew they were so toxic!

Spotted by

South Carolina, USA

Spotted on Apr 19, 2012
Submitted on Mar 24, 2013

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