Rhododendron Calendulaceum. The latin calendulaceum means like a calendula a genus of flowering plants with similar flower color. Rhododendron calendulaceum also known as the flame azalea is surely one of the most spectacular native shrubs of the appalachian mountains the flowers are larger than most of the natives measuring from 1 5 to 2 5 inches across and come in a wide range of colors from clear yellow through shades of orange to brilliant red.
However there are also many references to entire hill sides becoming ablaze with orange flowers when. Rhododendron calendulaceum commonly known as flame azalea is an upright loosely branched deciduous shrub that typically matures to 4 8 infrequently to 10 15 tall and to 8 10 wide. The common name flame azalea as well as the species epithet calendulaceum are presumably a reference to the flower buds and their resemblance to a candle flame.
Rhododendron calendulaceum commonly known as flame azalea is an upright loosely branched deciduous shrub that typically matures to 4 8 infrequently to 10 15 tall and to 8 10 wide.
Rhododendron calendulaceum is commonly called the flame azalea due to the resemblance of its expanded but unopened buds to candle flames. Wide 7 cm with buds resembling candle flames hence the common name. All parts of this plant are poisonous to humans. It is native primarily to woodland slopes and mountain balds in the appalachian mountains from pennsylvania to georgia.