Rhododendron calendulaceum (Michaux) Torrey. Flame Azalea. Phen: May-Jun; Jun-Sep. Hab: Deciduous forests, particularly on mountain slopes, grassy balds. Dist: Largely Appalachian: s. PA and s. OH to c. GA and e. TN.
Origin/Endemic status: Endemic
Syn: = C, F, FNA8, G, K1, K3, K4, NE, NY, Pa, RAB, Tn, Va, W, WV, Horn (2019), Kron (1993), Luteyn et al (1996), Zhou et al (2008); = Azalea calendulacea – S
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