Plant Index


 
 
 

Clethra alnifolia

Clethra alnifolia L.

coastal sweet-pepperbush, coastal sweetpepperbush, coastal white-alder

Synonym(s): Clethra alnifolia var. tomentosa, Clethra tomentosa
Cultivar(s): Compacta, Cv., Fern Valley Late Sweet, Fern Valley Pink, Hummingbird, Pink Spires, Ruby Spice, September Beauty, Sixteen Candles, White Dove
Clethra alnifolia (Coastal Sweet-pepperbush)
Image ID: 13672
Image by: Sorrie, Bruce A.
Image Collection: NCBG Digital Library

PLANT INDEX

ID_PLANT: CLAL3
SCIENTIFIC NAME: Clethra alnifolia
Include in WOTAS: 0
Publish to Web: 1
Last Modified: 2019-02-11

CULTIVAR INDEX

Cult_id Cultivar_name Action
294 Compacta View
295 Cv. View
175 Fern Valley Late Sweet View
296 Fern Valley Pink View
6 Hummingbird View
40 Pink Spires View
7 Ruby Spice View
297 September Beauty View
8 Sixteen Candles View
298 White Dove View

GENUS INDEX

GENUS CODE: CLETH
GENUS SCIENTIFIC: Clethra
GENUS AUTHORITY: L.
GENUS COMMON: Sweetpepperbush
GENUS SUMMARY: A genus of 65-95 species, shrubs and trees, primarily of tropical America and Asia.
GENUS IDENTIFICATION:
GENUS REFERENCES: Tucker & Jones in FNA (2009); Sleumer (1967b)=Z; Schneider & Bayer in Kubitzki (2004). Key based on FNA.

FAMILY INDEX

FAMILY CODE: CLETHR
FAMILY SCIENTIFIC: Clethraceae
FAMILY AUTHORITY: Klotzsch 1851
FAMILY COMMON: Clethra Family
FAMILY SUMMARY: A monogeneric family of 65-95 species, shrubs and trees, primarily of tropical America and Asia. Sometimes combined into the Cyrillaceae.
FAMILY REFERENCE: Tucker & Jones in FNA (2009); Sleumer (1967b); Anderberg & Zhang (2002); Schneider & Bayer in Kubitzki (2004).

NCBG DESCRIPTIVES

INTRO: Clethra alnifolia, commonly called summersweet, is a rounded, suckering, densely-branched, deciduous shrub that is native to swampy woodlands, wet marshes and stream banks along the East Coast. In late summer this plant develops upright panicles of sweetly fragrant flowers which ripen to into brown seed capsules in the autumn and may persist into winter. The green leaves turn a pleasant yellow to golden-brown in the fall.
STEMS:
LEAVES:
INFLORESCENCE:
FLOWERS:
FRUITS:
COMMENTS:
HEIGHT: 3-5 ft.

DURATION: Perennial
HABIT: Shrub

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

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

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

FRUITING PERIOD: Sep-Oct.

DISTRIBUTION
HABITAT TYPE: Wet marshes and stream banks.
NATIVE RANGE: eastern United States

HORTICULTURAL
Plant Sale Text: Coastal sweet-pepperbush blooms profusely in late summer. Its spikes of white flowers produce an intoxicating fragrance that entices people as well as pollinators. Many butterflies are attracted to the nectar of its flowers as are hummingbirds. This adaptable species is easily grown anywhere in sun to light shade, as long as it is planted in soil that retains some moisture. Over time, a single plant will spread to form a clump up to 12 ft wide. This genus supports up to 9 lepidoptera species.

Bloom Table Text: Coastal Sweet-pepperbush can be found along the east coast from Maine to Florida, growing to be 10 feet tall in good soil conditions. A wonderful landscape plant for a shrub border or at the edge of a pond or stream, it grows well in sun or shade and prefers moist, acidic soil. Flowering for 4-6 weeks in July and August, it produces upright white racemes that are very attractive to bees. The fruits are small dry capsules and are often present during much of the year. Coastal Sweet-pepperbush is also noted for its beautiful fall color.

NCBG Location: Found throughout the Habitats, Education Center Landscape, and Totten Center Landscape.

Cultural Notes:

SOIL MOISTURE: Dry, Average, Moist/Wet
LIGHT EXPOSURE: Sun, Part Shade, Shade
MINIMUM HARDINESS ZONE: 4
MAXIMUM HARDINESS ZONE: 9
GERMINATION CODE: 2
WILDLIFE VALUE: Bee Friendly, Butterfly Friendly, Bird Friendly, Hummingbird Friendly
DEER RESISTANCE:

GRIM ACCESSIONS

acc_id acc_num acc_dt coll_id Action
822 1985-0486 View
823 1985-0487 View
1837 1986-1618 View
2550 1986-2440 View
3409 1991-0040 View
4775 1993-0065 View
4800 1993-0091 View
6521 1996-0149 View
6523 1996-0151 View
6959 1998-0168 View
7483 2000-0240 2000-06-08 View
7775 2001-0131 2001-06-27 View
8291 2005-0008 2005-03-12 View
8292 2005-0009 2005-03-12 View
8293 2005-0010 2005-03-12 View
8330 2005-0047 2005-04-12 View
8412 2005-0234 2005-08-07 View
8417 2005-0239 2005-08-07 View
8662 2006-0267 2006-09-21 View
8663 2006-0268 2006-09-21 View
8688 2006-0340 2006-10-25 View
9166 2008-0361 2020-04-07 1922 View
9298 2020-0037 2021-01-11 0 View


GRIM COLLECTIONS

Coll_id Project Collection date Collector Action
526 SOS 2015-10-07 Dakar View
535 SOS 2015-10-08 Heraty View
834 SOS 2016-11-01 Flood View
955 SOS 2017-11-06 Faucette View
1922 HORT 2008-04-03 Stern View


GRIM PLANTINGS

plt_num acc_id loc_num pers_num inst_dt Action
964 3409 43 NCBG staff 2011-04-15 View
965 3409 42 NCBG staff 2011-04-15 View
966 3409 44 NCBG staff 2011-04-15 View
967 6521 44 NCBG staff 2011-05-13 View
1562 822 160 NCBG staff 0000-00-00 View
1563 823 198 NCBG staff 0000-00-00 View
2928 1837 64 NCBG staff 1984-03-11 View
4310 2550 53 NCBG staff 1986-01-01 View
4311 2550 54 NCBG staff 0000-00-00 View
4312 2550 56 NCBG staff 0000-00-00 View
4313 2550 57 NCBG staff 0000-00-00 View
4314 2550 58 NCBG staff 0000-00-00 View
4315 2550 59 NCBG staff 0000-00-00 View
5647 3409 6 NCBG staff 1990-07-28 View
5648 3409 27 NCBG staff 2003-07-17 View
5649 3409 81 NCBG staff 2003-07-30 View
7142 4775 159 NCBG staff 1999-09-01 View
7172 4800 140 NCBG staff 0000-00-00 View
9219 6521 140 Liloia 1996-01-01 View
9220 6521 174 NCBG staff 2001-10-15 View
9221 6521 27 Liloia 2003-07-17 View
9222 6521 142 NCBG staff 0000-00-00 View
9224 6523 142 Liloia 1967-12-31 View
9225 6523 142 NCBG staff 0000-00-00 View
9226 6523 174 NCBG staff 1967-12-01 View
9824 6959 159 NCBG staff 1967-12-01 View
10502 7483 174 NCBG staff 2005-09-15 View
10503 7483 118 NCBG staff 2000-05-01 View
10504 7483 27 NCBG staff 2003-07-17 View
10979 7775 6 NCBG staff 1978-01-01 View
11573 8292 135 NCBG staff 2005-01-01 View
11574 8293 205 NCBG staff 1967-12-01 View
11602 8330 153 NCBG staff 1967-12-31 View
11879 8662 153 NCBG staff 2006-10-01 View
11880 8663 153 NCBG staff 2006-10-01 View
11908 8688 98 NCBG staff 1996-01-01 View
11909 8688 133 NCBG staff 1996-01-01 View
11910 8688 135 NCBG staff 1996-01-01 View
12135 9166 170 Stern 2008-04-03 View
12227 8292 39 Liloia 2011-04-15 View
12228 8292 39 Liloia 2011-04-15 View
12250 8412 44 Liloia 2011-05-13 View
12431 9298 174 Neal 2020-12-14 View

USDA PLANTS DATABASE

USDA Symbol: CLAL3
USDA Common Name: Coastal Sweetpepperbush
Native Status: L48 (N), CAN (N)
Distribution: USA (AL, CT, DE, FL, GA, LA, MA, MD, ME, MS, NC, NH, NJ, NY, PA, RI, SC, TN, TX, VA), CAN (NS)
Duration: Perennial
Growth Habit: Shrub

NATIONAL WETLAND INDICATOR STATUS

Region:AGCPAKAWCBEMPGPHIMWNCNEWMVE
Status: FACW FAC FACW 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: Clethra alnifolia
COMMON NAME: Coastal Sweet-pepperbush, Coastal White-alder
SYNONYMY: [= FNA, S, Va; < C. alnifolia - C, F, G, GW, K, Pa, WH3; = C. alnifolia var. alnifolia - RAB, Z]
PHENOLOGY: Jun-Aug; Sep-Oct.
HABITAT: Pocosins, blackwater swamp forests, nonriverine swamp forests.
COMMENTS: Primarily a southeastern Coastal Plain species, C. alnifolia ranges from NS and ME south to FL, west to TX; disjunct in sc. TN (Coffee County) (Chester, Wofford, & Kral 1997).
RANGE MAP: Clethra alnifolia.png

Key to Map Symbols
ABOUT FAMILY (Weakley Flora)
Clethraceae Klotzsch 1851 (Clethra Family)
SUMMARY: A monogeneric family of 65-95 species, shrubs and trees, primarily of tropical America and Asia. Sometimes combined into the Cyrillaceae.
REFERENCE: Tucker & Jones in FNA (2009); Sleumer (1967b); Anderberg & Zhang (2002); Schneider & Bayer in Kubitzki (2004).
ABOUT GENUS (Weakley Flora)
Clethra L. (Sweetpepperbush)
SUMMARY: A genus of 65-95 species, shrubs and trees, primarily of tropical America and Asia.
REFERENCE: Tucker & Jones in FNA (2009); Sleumer (1967b)=Z; Schneider & Bayer in Kubitzki (2004). Key based on FNA.

HERBARIUM RESOURCES

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

WEB RESOURCES

USDA: Find Clethra alnifolia in USDA Plants
NPIN: Find Clethra alnifolia in NPIN Database
FNA: Find Clethra alnifolia in the Flora of North America (if available)
Google: Search Google for Clethra alnifolia

NCBG IMAGE RECORDS

ID IMAGE1: 13672
ID IMAGE2: 2946
ID IMAGE3: 13672

From the Image Gallery


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39 photo(s) available in the Image Gallery

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