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Rhododendron atlanticum (Ashe) Rehder
DWARF AZALEA
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Rhododendron atlanticum
© Copyright Bobby Hattaway 2011 · 5
Rhododendron atlanticum

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Rhododendron atlanticum
© Copyright Bobby Hattaway 2011 · 5
Rhododendron atlanticum
Rhododendron atlanticum
© Copyright Bobby Hattaway 2011 · 5
Rhododendron atlanticum

Rhododendron atlanticum
© Copyright Bobby Hattaway 2011 · 5
Rhododendron atlanticum
Rhododendron atlanticum
© Copyright Bobby Hattaway 2011 · 5
Rhododendron atlanticum

Rhododendron atlanticum
© Copyright Bobby Hattaway 2011 · 5
Rhododendron atlanticum
Rhododendron atlanticum
© Copyright Bobby Hattaway 2011 · 5
Rhododendron atlanticum

Rhododendron atlanticum
© Copyright Bobby Hattaway 2011 · 5
Rhododendron atlanticum
Rhododendron atlanticum
© Copyright Bobby Hattaway 2011 · 5
Rhododendron atlanticum

Rhododendron atlanticum
© Copyright Bobby Hattaway 2011 · 5
Rhododendron atlanticum
Rhododendron atlanticum
© Copyright Bobby Hattaway 2011 · 5
Rhododendron atlanticum

Rhododendron atlanticum, Nacoochee princess, stem
© Graham Wyatt, 2009-2010 · 1
Rhododendron atlanticum, Nacoochee princess, stem
Rhododendron atlanticum, Nacoochee princess, plant
© Graham Wyatt, 2009-2010 · 1
Rhododendron atlanticum, Nacoochee princess, plant

Rhododendron atlanticum, Nacoochee princess, branching
© Graham Wyatt, 2009-2010 · 1
Rhododendron atlanticum, Nacoochee princess, branching
Rhododendron atlanticum, Nacoochee princess, leaf upper
© Graham Wyatt, 2009-2010 · 1
Rhododendron atlanticum, Nacoochee princess, leaf upper

Associates · map
FamilyScientific name @ source (records)
Exobasidiaceae  Exobasidium vaccinii @ BPI (1)
Mycosphaerellaceae  Cercospora handelii @ BPI (1)

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Following modified from Virginia Tech Dendrology
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Following modified from Plants Database, United States Department of Agriculture
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Following modified from Flora of North America
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FNA | Family List | FNA Vol. 8 | Ericaceae | Rhododendron

17. Rhododendron atlanticum (Ashe) Rehder in E. H. Wilson and A. J. Rehder, Monogr. Azaleas. 147. 1921.

Dwarf azalea

Azalea atlantica Ashe, Bull. Charleston Mus. 13: 26. 1917

Shrubs , to 0.5-1 m, very strongly rhizomatous. Stems: bark ± smooth, not shredding; twigs scattered, multicellular eglandular-hairy (hairs un-branched) and/or stipitate-glandular-hairy, otherwise gla-brous or, sometimes, sparsely unicellular-hairy. Leaves deciduous; petiole multicellular eglandular- and/or stipitate-glandular-hairy, sometimes also unicellular-hairy; blade ovate to obovate, 2-5.5(-6.5) × 0.8-2(-3) cm, thin, membranous to chartaceous, margins entire, plane, ciliate, eglandular-hairy, apex acute to obtuse, often mucronate, abaxial surface glabrous or, rarely, sparsely scattered eglandular-hairy, sometimes sparsely (rarely densely) unicellular-hairy, adaxial surface (lustrous to dull), glabrous or sparsely scattered stipitate-glandular-hairy, sometimes also sparsely unicellular-hairy. Floral bud scales glabrous or densely unicellular-hairy abaxially, margins usually unicellular-ciliate. Inflorescences 4-13-flowered; bracts similar to bud scales. Pedicels 4-15(-20) mm, eglandular- and/or stipitate-glandular-hairy, otherwise glabrous or sparsely (rarely moderately) unicellular-hairy. Flowers opening before or with leaves, erect to horizontal, usually very fragrant and/or nearly mephitic-scented; calyx lobes 0.7-5.5(-10) mm, marginal and scattered stipitate-glandular- or, less commonly, eglandular-hairy, sometimes also unicellular-hairy; corolla white, usually flushed pink or rose (especially on tube), without blotch on upper lobe, funnelform, 23-58 mm, scattered, usually conspicuous, multicellular stipitate-glandular-hairy (hairs forming prominent band along middle of each lobe), otherwise glabrous or, sometimes, sparsely unicellular-hairy on outer surface, petals connate, lobes 8-24 mm, tube rather gradually expanded into lobes, 16-35 mm (equaling or longer than lobes); stamens 5, much exserted, ± unequal, 32-63 mm. Capsules borne on erect pedicels, 10-24 × 4-8 mm, usually densely stipitate-glandular-hairy, otherwise glabrous or densely unicellular-hairy. Seeds without distinct tails, flattened portion of testa well developed at each end; testa expanded, dorsiventrally flattened, ± loose. 2 n = 26.

Flowering spring. Moist pine flatwoods and savannas, sometimes in drier pine and/or oak forests, primarily in fire-maintained communities of the Atlantic coastal plain; 0-200 m; Del., Ga., Md., N.C., Pa., S.C., Va.

Varieties and forms have been described within Rhododendron atlanticum (see E. H. Wilson and A. J. Rehder 1921; K. A. Kron 1993). Hybrids between it and R. canescens and R. periclymenoides are known. Rhododendron atlanticum is easily confused with the sympatric R. viscosum , which generally is taller, less rhizomatous, hairier, larger-leaved, and later-flowering (i.e., flowers appear after the leaves have expanded).

Updated: 2018-05-27 19:57:39 gmt
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