NCBG North Carolina Botanical Garden

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Rhododendron periclymenoides

Rhododendron periclymenoides (Michx.) Shinners

pinxter-flower, election pink, pink azalea, pinxterbloom azalea

Synonym(s): Azalea nudiflora, Rhododendron nudiflorum, Rhododendron nudiflorum var. glandiferum, Rhododendron periclymenoides var. eglandulosum
Rhododendron periclymenoides (Pinxter-flower)
image by Parkins, Grant Morrow
NCBG PLANT INDEX
ID_PLANT: RHPE4
SCIENTIFIC NAME: Rhododendron periclymenoides
GENUS: Rhododendron
FAMILY: ERICAC - Ericaceae (Heath Family)

NCBG DESCRIPTIVES
INTRO:
STEMS:
LEAVES:
INFLORESCENCE:
FLOWERS:
FRUITS:
COMMENTS:
HEIGHT: 4-6 ft.

DURATION: Perennial
HABIT: Shrub

LEAF ARRANGEMENT: Alternate
LEAF COMPLEXITY: Simple
LEAF RETENTION: Deciduous

FLORAL
SYMMETRY:
BLOOM TIME: Mar-May
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
x x x

BLOOM COLOR: Pink flowers
White Red Pink Orange Yellow Green Blue Lavender Purple Violet Brown Not Applicable
x x

FRUITING PERIOD: Sep-Oct.

DISTRIBUTION
HABITAT TYPE:
NATIVE RANGE: Eastern United States

HORTICULTURAL
Plant Sale Text: Pinxter-flower is present all along the East coast and is the most common native azalea in our area. It blooms in shades of pink early in the spring before leafing out. The lovely flowers are wonderful in a woodland garden, but it also works well in a number of landscape situations. When choosing a site, keep in mind that like many other rhododendrons, it requires well-drained soil. Light shade is ideal as a hot, sunny site will be stressful for this species. The genus Rhododendron supports up to 50 lepidoptera species.

Cultural Notes:

SOIL MOISTURE: Moist/Wet, Well-drained
LIGHT EXPOSURE: Part Shade
MINIMUM HARDINESS ZONE: 4
MAXIMUM HARDINESS ZONE: 8
GERMINATION CODE:
WILDLIFE VALUE: Bee Friendly, Butterfly Friendly
USDA PLANTS DATABASE
USDA Symbol: RHPE4
USDA Common Name: Pink Azalea
Native Status: L48 (N)
Distribution: USA (AL, CT, DC, DE, GA, IL, KY, MA, MD, NC, NH, NJ, NY, OH, PA, RI, SC, TN, VA, VT, WV)
Duration: Perennial
Growth Habit: Shrub

NATIONAL WETLAND INDICATOR STATUS

Region:AGCPAKAWCBEMPGPHIMWNCNEWMVE
Status: FAC FAC FAC FAC

This information is derived from the U.S. Army Corps of Engineers 2016 National Wetland Plant List, Version 3.3 (Lichvar, R.W., D.L. Banks, W.N. Kirchner, and N.C. Melvin. 2016. The National Wetland Plant List: 2016 wetland ratings. Phytoneuron 2016-30: 1-17. Published 28 April 2016. ISSN 2153 733X). Regions: AGCP-Atlantic and Gulf Coastal Plain, AK-Alaska, AW-Arid West, CB-Caribbean, EMP-Eastern Mountains and Piedmont, GP-Great Plains, HI-Hawaii, MW-Midwest, NCNE-Northcentral and Northeast, WMCV-Western Mountains, Valleys & Coast
WEAKLEY FLORA
SCIENTIFIC NAME: Rhododendron periclymenoides
COMMON NAME: Wild Azalea, Pinxterflower, Pinxterbloom Azalea, Election Pink
SYNONYMY: [= C, FNA, Il, K, L, Pa, Va, W, Z; = R. nudiflorum (Linnaeus) Torrey - F, G, GW, RAB, WV; = Azalea nudiflora Linnaeus - S]
PHENOLOGY: Late Mar-May; Sep-Oct.
HABITAT: Moist to dry slopes and streambanks.
COMMENTS: Fairly widespread in e. United States, ranging from MA, NY, and s. OH, south to GA and AL. See Shinners (1962) for explanation of the change from the name R. nudiflorum.
RANGE MAP: Rhododendron periclymenoides.png

Key to Map Symbols.

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 periclymenoides in Southeast Regional Network of Experts and Collections (if available)
UNC SERNEC: Find Rhododendron periclymenoides in University of North Carolina Chapel Hill Herbarium - Southeast Regional Network of Experts and Collections (if available)

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

NCBG RECORD
ID IMAGE1: 7432
ID IMAGE2: 7431
ID IMAGE3: 16734
Include in WOTAS: 0
Publish to Web: 1
Last Modified: 2017-09-27

From the Image Gallery


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Image ID: 11819
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