Plant Index


 
 
 

Heuchera americana

Heuchera americana L.

american alumroot

Cultivar(s): Dale's Strain, Green Stripe
Heuchera americana (American Alumroot)
Image ID: 14797
Image by: Sorrie, Bruce A.
Image Collection: NCBG Digital Library

PLANT INDEX

ID_PLANT: HEAM6
SCIENTIFIC NAME: Heuchera americana
Include in WOTAS: 1
Publish to Web: 1
Last Modified: 2019-03-12

CULTIVAR INDEX

Cult_id Cultivar_name Action
1359 Dale's Strain View
1696 Green Stripe View

GENUS INDEX

GENUS CODE: HEUCH
GENUS SCIENTIFIC: Heuchera
GENUS AUTHORITY: L.
GENUS COMMON: Alumroot
GENUS SUMMARY: [contributed by R.A. Folk and A.S. Weakley]
GENUS IDENTIFICATION: Identification notes: Vegetatively, Heuchera resembles Tiarella and Mitella. Heuchera usually has leaves as wide as long and with prominent variegation, while Tiarella and Mitella usually have leaves longer than wide and lacking variegation.
GENUS REFERENCES: Folk & Freudenstein (2014); Folk & Freudenstein (2015)=X; Wells & Shipes in FNA (2009); Wells (1984)=Z; Rosendahl, Butters, & Lakela (1936)=Y; Wells (1979); Soltis in Kubitzki, Bayer, & Stevens (2007). The keys partly adapted from Wells (1984).

FAMILY INDEX

FAMILY CODE: SAXIFR
FAMILY SCIENTIFIC: Saxifragaceae
FAMILY AUTHORITY: A.L. de Jussieu 1789
FAMILY COMMON: Saxifrage Family
FAMILY SUMMARY: If narrowly circumscribed (as here), a family of about 35 genera and 500-650 species, herbs (mianly perennial), nearly cosmopolitan, but especially diverse in warm temperate and cold temperate regions of North America and Eurasia. The circumscription of a much narrower Saxifragacaeae is clearly warranted, based on a wide variety of data, and strongly corroborated by molecular data (Morgan & Soltis 1993 and many later references).
FAMILY REFERENCE: Wells & Elvander in FNA (2009); Spongberg (1972); Morgan & Soltis (1993); Soltis in Kubitzki, Bayer, & Stevens (2007). [also see GROSSULARIACEAE, HYDRANGEACEAE, ITEACEAE, PARNASSIACEAE, and PENTHORACEAE]

NCBG DESCRIPTIVES

INTRO: Erect, rosette-forming perennial of rocky forests and rock outcrops, particularly where soils are subacidic to circumneutral.
STEMS: Flowering stems arising from a basal rosette, unbranched, mostly leafless, somewhat sticky-hairy.
LEAVES: Leaves mostly basal; long-petiolate; round to oval and notched at the base; 1-4 in. long; shallowly palmately divided into 5-9 variously sized, toothed lobes; thick-textured; often white-mottled; may be smooth or hairy.
INFLORESCENCE:
FLOWERS: Flowers in a narrow, loose, terminal panicle; pink to greenish-white; 1/4 in. or less long; consisting of 5 tiny petals attached to a tiny, sticky-hairy cup-shaped calyx with minute segments. There are 5 protruding stamens.
FRUITS: Fruit an oval capsule with 2 persistent styles.
COMMENTS:
HEIGHT: 6-10 in.

DURATION: Perennial
HABIT: Herb

LEAF ARRANGEMENT: Basal
LEAF COMPLEXITY: Simple
LEAF RETENTION:

FLORAL CHARACTERISTICS
SYMMETRY: Radial (Actinomorphic)
BLOOM TIME: Apr-Aug
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
x x x x x x

BLOOM COLOR: Pink to greenish-white
White Red Pink Orange Yellow Green Blue Lavender Purple Violet Brown Not Applicable
x x x x x

FRUITING PERIOD:

DISTRIBUTION
HABITAT TYPE: Dry forests, Moist forests, Outcrops and glades
NATIVE RANGE: eastern North America

HORTICULTURAL
Plant Sale Text: Beautiful evergreen foliage gives this Southeastern native perennial long-term appeal in the garden. Rosettes of dark green leaves take on a burgundy cast in the winter. Panicles of tiny pinkish-brown bell-shaped flowers rise above its foliage in late spring. In the wild, American alumroot grows in deciduous woods and on rocky outcrops. Plant it at the front of your perennial border. Used medicinally for its astringent properties.

Bloom Table Text:

NCBG Location:

Cultural Notes:

SOIL MOISTURE: Dry, Average, Well-drained
LIGHT EXPOSURE: Sun, Part Shade, Shade
MINIMUM HARDINESS ZONE: 3
MAXIMUM HARDINESS ZONE: 9
GERMINATION CODE:
WILDLIFE VALUE: Bee Friendly
DEER RESISTANCE:

GRIM ACCESSIONS

acc_id acc_num acc_dt coll_id Action
28 2018-0120 2018-12-13 View
140 2010-0055 2010-11-25 141 View
402 2013-0032 2020-01-27 141 View
1308 1986-1082 View
2077 1986-1875 View
2184 1986-1996 View
2451 1986-2292 View
2889 1987-0418 View
3590 1991-0253 View
4281 1992-0437 View
4950 1995-0068 View
5127 1995-0246 View
5843 1995-0971 View
6129 1995-1260 View
6758 1996-0417 View
7167 1999-0128 1999-11-02 View
8067 2004-0075 2004-09-09 View
8606 2006-0188 2006-08-16 View
8625 2006-0213 2006-08-23 View
9152 2007-0412 2020-04-07 1908 View
9159 2007-0419 2020-04-07 1915 View


GRIM COLLECTIONS

Coll_id Project Collection date Collector Action
141 HORT 2010-11-24 Liloia View
1378 HORT 2006-06-01 Bryan View
1727 HORT 2005-01-01 Bryan View
1908 HORT 2007-10-25 Stern View
1915 HORT 2007-10-25 Stern View


GRIM PLANTINGS

plt_num acc_id loc_num pers_num inst_dt Action
37 28 84 NCBG staff 2018-12-04 View
275 140 111 NCBG staff 2011-04-04 View
276 140 15 Heiney 2011-05-17 View
948 402 17 Wichmann 2013-06-20 View
2271 1308 84 NCBG staff 1985-11-26 View
2272 1308 98 NCBG staff 1985-11-26 View
2273 1308 81 NCBG staff 0000-00-00 View
3439 2077 75 NCBG staff 1986-12-31 View
3440 2077 79 NCBG staff 1986-12-31 View
3441 2077 187 NCBG staff 1986-12-31 View
3775 2184 52 NCBG staff 1986-12-23 View
4162 2451 27 NCBG staff 1986-12-31 View
4798 2889 8 NCBG staff 1978-10-01 View
5870 3590 79 NCBG staff 1967-12-31 View
6609 4281 200 NCBG staff 1993-03-01 View
7369 4950 202 NCBG staff 1992-01-01 View
7549 5127 203 NCBG staff 1992-01-01 View
8358 5843 204 NCBG staff 1993-01-01 View
8784 6129 2 NCBG staff 0000-00-00 View
9538 6758 114 NCBG staff 1967-01-01 View
10113 7167 166 NCBG staff 1999-09-01 View
11336 8067 82 NCBG staff 2003-01-01 View
11337 8067 84 NCBG staff 2003-01-01 View
11338 8067 94 NCBG staff 2003-01-01 View
11339 8067 27 NCBG staff 2003-11-05 View
11798 8606 205 NCBG staff 2005-04-01 View
11817 8625 205 NCBG staff 0000-00-00 View
12120 9152 159 Stern 2007-10-25 View
12121 9152 155 Stern 2007-10-25 View
12128 9159 153 Stern 2007-10-25 View
12278 140 36 NCBG staff 2013-01-16 View
12676 0 16 Liloia 0000-00-00 View
12718 0 12 Liloia 0000-00-00 View
12832 0 18 Liloia 0000-00-00 View

USDA PLANTS DATABASE

USDA Symbol: HEAM6
USDA Common Name: American Alumroot
Native Status: L48 (N), CAN (N)
Distribution: USA (AL, AR, CT, DC, DE, GA, IA, IL, IN, KS, KY, LA, MD, MI, MO, MS, NC, NE, NJ, NY, OH, OK, PA, SC, TN, VA, WV), CAN (ON)
Duration: Perennial
Growth Habit: Forb/herb

NATIONAL WETLAND INDICATOR STATUS

Region:AGCPAKAWCBEMPGPHIMWNCNEWMVE
Status: FACU FACU FACU FACU FACU

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: Heuchera americana
COMMON NAME: American Alumroot
SYNONYMY: [= C, Pa, Va; > H. americana var. americana - F, G, WV; = H. americana var. americana - FNA, K, Mo, Z; > H. americana var. heteradenia Fernald - F; > H. americana var. subtruncata Fernald - F; > H. americana var. brevipetala Rosendahl, Butters, & Lakela - G, Y; < H. americana - RAB, W; > H. calycosa Small - S; > H. curtisii - S; > H. lancipetala Rydberg - S; > H. americana var. typica - Y; > H. americana var. calycosa (Small) Rosendahl, Butters, & Lakela - Y]
PHENOLOGY: Apr-Aug.
HABITAT: Rocky forests, rock outcrops, particularly where soils are subacidic to circumneutral.
COMMENTS: CT and NY west to s. ON, n. IN, s. IL, and sc. MO south to c. GA, c. AL, n. MS, n. LA, and ne. TX. H. americana is the most widespread species of Heuchera in e. North America. Within the range of H. caroliniana, H. americana is nearly absent. H. americana var. heteradenia may warrant recognition, and is likely the basis of some eastern records considered to be H. hirsuticaulis; further study is needed.
RANGE MAP: Heuchera americana.png

Key to Map Symbols
ABOUT FAMILY (Weakley Flora)
Saxifragaceae A.L. de Jussieu 1789 (Saxifrage Family)
SUMMARY: If narrowly circumscribed (as here), a family of about 35 genera and 500-650 species, herbs (mianly perennial), nearly cosmopolitan, but especially diverse in warm temperate and cold temperate regions of North America and Eurasia. The circumscription of a much narrower Saxifragacaeae is clearly warranted, based on a wide variety of data, and strongly corroborated by molecular data (Morgan & Soltis 1993 and many later references).
REFERENCE: Wells & Elvander in FNA (2009); Spongberg (1972); Morgan & Soltis (1993); Soltis in Kubitzki, Bayer, & Stevens (2007). [also see GROSSULARIACEAE, HYDRANGEACEAE, ITEACEAE, PARNASSIACEAE, and PENTHORACEAE]
ABOUT GENUS (Weakley Flora)
Heuchera L. (Alumroot)
SUMMARY: [contributed by R.A. Folk and A.S. Weakley]
REFERENCE: Folk & Freudenstein (2014); Folk & Freudenstein (2015)=X; Wells & Shipes in FNA (2009); Wells (1984)=Z; Rosendahl, Butters, & Lakela (1936)=Y; Wells (1979); Soltis in Kubitzki, Bayer, & Stevens (2007). The keys partly adapted from Wells (1984).

HERBARIUM RESOURCES

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

WEB RESOURCES

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

NCBG IMAGE RECORDS

ID IMAGE1: 14797
ID IMAGE2: 32150
ID IMAGE3: 14798

From the Image Gallery


Image ID: 32153

Image ID: 37392

Image ID: 37391

Image ID: 37390

Image ID: 37389

Image ID: 37388

Image ID: 35535

Image ID: 35534

Image ID: 32158

Image ID: 32157

Image ID: 32155

Image ID: 32150

Image ID: 32148

Image ID: 32147

Image ID: 32146

Image ID: 32149

Image ID: 32159

Image ID: 14798

Image ID: 29365

Image ID: 29366

Image ID: 30994

Image ID: 32161

Image ID: 32160

Image ID: 30995

Image ID: 32156

Image ID: 32154

Image ID: 8658

Image ID: 32152

Image ID: 32151

Image ID: 30993

Image ID: 30992

Image ID: 11266
33 photo(s) available in the Image Gallery

Go back