Rhododendron calendulaceum (Michx.) Torr.
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Authority
Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.
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Family
Ericaceae
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Scientific Name
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Description
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Species Description - Much branched upright shrub to 3 m, not colonial; lvs oblong to obovate or oblanceolate, not yet full-grown at anthesis, later 5–10 cm, half as wide; winter-buds glabrous; fls in clusters of 5–15, scarcely fragrant, yellow to orange and red, 4–5 cm wide, the tube usually glandular-setose; upper lobe of the cor only slightly wider than the others; sep oblong-ovate, glandular-ciliate, 2–3 mm; 2n=52. Mt. woods; Pa. and s. O. to Ga. and Ala. May. (Azalea c.) South of our range enters into a polyploid complex with no. 12 [Rhododendron bakeri (W. P. Lemmon & McKay) H. H. Hume].
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Common Names
flame-azalea