NCBG North Carolina Botanical Garden

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Scientific Name: or show all plants or perform combination search
Plant Family:

Rhododendron carolinianum

Rhododendron carolinianum Rehder

carolina azalea, carolina rhododendron, punctatum

Rhododendron carolinianum (Carolina Azalea)
image by Bridges, Edwin

Key to Map Symbols.
NCBG PLANT INDEX
ID_PLANT: RHCA14
SCIENTIFIC NAME: Rhododendron carolinianum
SELECTED SYNONYM:
GENUS: Rhododendron
FAMILY CODE: ERICAC

NCBG DESCRIPTIVES
INTRO:
STEMS:
LEAVES:
INFLORESCENCE:
FLOWERS:
FRUITS:
COMMENTS:
HEIGHT:

NCBG DURATION
ANNUAL: 0
BIENNIAL: 0
PERENNIAL: 1

NCBG HABIT
HERB: 0
SUBSHRUB: 0
SHRUB: 1
TREE: 0
CACTUS/SUCCULENT: 0
GRASS/GRASSLIKE: 0
FERN: 0
VINE: 0

NCBG LEAF ARRANGEMENT
ALTERNATE: 1
OPPOSITE: 0
WHORLED: 0
BASAL: 0
FASCICLED: 0

NCBG LEAF COMPLEXITY
SIMPLE: 1
PINNATE: 0
BI-PINNATE: 0
TRI-PINNATE: 0
PALMATE: 0
TRIFOLIOLATE: 0

NCBG LEAF RETENTION
DECIDUOUS: 0
EVERGREEN: 1
SEMI-EVERGREEN: 0

NCBG DISTRIBUTION
HABITAT TYPE:
NATIVE RANGE: NC, SC, TN & GA

NCBG FLORAL SYMMETRY
RADIAL (ACTINOMORPHIC): 0
BILATERAL (ZYGOMORPHIC): 0
MIXED (BOTH ACTINOMORPHIC and ZYGOMORPHIC): 0

NCBG PHENOLOGY
bloom_time: Late Apr-May
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
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bloom_color:
White Red Pink Orange Yellow Green Blue Lavender Purple Violet Brown Not Applicable
x x

fruit_time: Sep-Oct.

NCBG PLANT SALE
PLANT SALE TEXT:

Cultural Notes:

Bee Friendly: 0
Butterfly Friendly: 0
Bird Friendly: 0
Hummingbird Friendly: 0

SOIL MOISTURE:
Soil Dry: 0
Soil Average: 0
Soil Moist/Wet: 0
Soil Well-drained: 0

LIGHT EXPOSURE
Sun: 0
Part Shade: 0
Shade: 0

MINIMUM HARDINESS ZONE:
MAXIMUM HARDINESS ZONE:

GERMINATION CODE:

NCBG RECORD
ID IMAGE: 27912
ID IMAGE2: 0
ID IMAGE3: 30203
Publish to Web: 1
Last Modified: 2016-12-31

USDA PLANTS DATABASE
USDA Symbol: RHCA14
USDA Common Name: Carolina Azalea
Native Status: L48 (N)
Distribution: USA (CT, MA, NC, SC, TN)
Duration: Perennial
Growth Habit: Shrub

STATE RANKS
STATE RANK: S3 (S3)
GLOBAL RANK: G4
STATE STATUS:
US STATUS:
TRACKED STATUS: N: Do not track

WEAKLEY FLORA
SCIENTIFIC NAME: Rhododendron carolinianum
COMMON NAME: Carolina Rhododendron, Punctatum
SYNONYMY: [= D, K, S; < R. minus - RAB, W; < R. minus var. minus - FNA, L, Q, V]
PHENOLOGY: Late Apr-May; Sep-Oct.
HABITAT: Rocky summits, heath balds, high elevation forests, moist slopes.
COMMENTS: A Southern Appalachian endemic: w. NC, e. TN, ne. GA, and nw. SC, from the Linville Gorge area (and rarely as far north as Alleghany County, NC) south and west to the Great Smoky Mountains; its precise southern limit uncertain. R. carolinianum is phenologically separated from R. minus, flowering earlier than R. minus, despite its occurrence at higher elevations and with a more northerly distribution. Morphological distinctions between the two taxa are subtle and inconsistent, as discussed by Duncan & Pullen (1962). From a horticultural perspective, Davidian (1982) supports recognition of R. carolinianum and R. minus as distinct. Gensel (1988, and pers.comm.) did detailed studies of the complex and supported the recognition of three taxa (R. carolinianum, R. minus, and R. chapmanii).
RANGE MAP: Rhododendron carolinianum.png

ABOUT FAMILY (Weakley Flora)
Ericaceae A.L. de Jussieu 1789 (Heath Family)
SUMMARY: A family of about 107-124 genera and 3400-4100 species, primarily shrubs, small trees, and subshrubs, nearly cosmopolitan. The Ericaceae is very important in our area, which is one of the north temperate centers of diversity for the Ericaceae, with a great diversity of genera and species, many of them rather narrowly endemic. Along with Quercus and Pinus, various members of this family are dominant in much of our landscape.
REFERENCE: Tucker in FNA (2009); Gillespie & Kron (2010, 2013); Kron et al. (2002); Wood (1961); Judd & Kron (1993); Kron & Chase (1993); Luteyn et al. (1996)=L; Dorr & Barrie (1993); Cullings & Hileman (1997); Stevens et al. in Kubitzki (2004).
ABOUT GENUS (Weakley Flora)
Rhododendron Linnaeus 1753 (Rhododendron, Azalea)
SUMMARY: A genus of about 860 species, shrubs and trees, mostly north temperate (centered in Himalayan Asia). Molecular evidence appears to show that Menziesia should be included in Rhododendron, and is actually closely related within Rhododendron to R. vaseyi (Goetsch, Eckert, & Hall 2005; Kurashige et al. 2001); while the urceolate corolla is rather anomalous in Rhododendron, many other characters ally Menziesia with basal clades in Rhododendron s.l.
REFERENCE: Judd & Kron in FNA (2009); Fabijan in FNA (2009); Kron (1993)=Z; Judd & Kron (1995)=Y; Chamberlain (1982)=X; Cullen (1980)=Q; Davidian (1982)=D; Craven (2011)=U; Duncan & Pullen (1962)=V; Goetsch, Eckert, & Hall (2005); Towe (2004); Kron & Creel (1999); Stevens et al. in Kubitzki (2004).
HERBARIUM RESOURCES
SERNEC: Find Rhododendron carolinianum in Southeast Regional Network of Experts and Collections (if available)
UNC SERNEC: Find Rhododendron carolinianum in University of North Carolina Chapel Hill Herbarium - Southeast Regional Network of Experts and Collections (if available)

WEB RESOURCES
USDA: Find Rhododendron carolinianum in USDA Plants
NPIN: Find Rhododendron carolinianum in NPIN Database
FNA: Find Rhododendron carolinianum in the Flora of North America (if available)
Google: Search Google for Rhododendron carolinianum

From the Image Gallery


Image ID: 27913

Image ID: 30212

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Image ID: 30213
13 photo(s) available in the Image Gallery

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