Plant Index


 
 
 

Thuja occidentalis

Thuja occidentalis L.

american arborvitae, flat cedar, northern white cedar

Synonym(s): Thuja occidentalis f. malonyana, Thuja occidentalis var. fastigiata, Thuja occidentalis var. nigra, Thuja occidentalis var. pyramidalis
Cultivar(s): Dwarf Globe Form, Emerald, Filiformis, George Peabody, Hetz Midget, Holmstrupii, Hoseri, Nana, Ohlendorfii, Rheingold
Thuja occidentalis (American Arborvitae)
Image ID: 5354
Image by: Hardin, J.W.
Image Collection: Herbarium Collection

PLANT INDEX

ID_PLANT: THOC2
SCIENTIFIC NAME: Thuja occidentalis
Include in WOTAS: 0
Publish to Web: 1
Last Modified: 2019-08-30

CULTIVAR INDEX

Cult_id Cultivar_name Action
1603 Dwarf Globe Form View
1604 Emerald View
1605 Filiformis View
1606 George Peabody View
1607 Hetz Midget View
1608 Holmstrupii View
1609 Hoseri View
1610 Nana View
1611 Ohlendorfii View
1612 Rheingold View

GENUS INDEX

GENUS CODE: THUJA
GENUS SCIENTIFIC: Thuja
GENUS AUTHORITY: L.
GENUS COMMON: Arborvitae
GENUS SUMMARY: A genus of 5 species, trees, of e. North America, w. North America, and e. Asia.
GENUS IDENTIFICATION:
GENUS REFERENCES: Chambers in FNA (1993b); Page in Kramer & Green (1990).

FAMILY INDEX

FAMILY CODE: CUPRES
FAMILY SCIENTIFIC: Cupressaceae
FAMILY AUTHORITY: Bartlett 1830
FAMILY COMMON: Cypress Family
FAMILY SUMMARY: A family of about 29 genera and about 130 species. Recent studies indicate that the separation of the Taxodiaceae from the Cupressaceae is not warranted, and they are here combined (Gadek et al. 2000; Brunsfeld et al. 1994). The subfamilial classification used here follows Gadek et al. (2000).
FAMILY REFERENCE: Farjon (2005); Hart & Price (1990); Hardin (1971b); Watson & Eckenwalder in FNA (1993b); Page in Kramer & Green (1990).

NCBG DESCRIPTIVES

INTRO:
STEMS:
LEAVES:
INFLORESCENCE:
FLOWERS:
FRUITS:
COMMENTS:
HEIGHT: 20-40 ft.

DURATION: Perennial
HABIT: Tree

LEAF ARRANGEMENT:
LEAF COMPLEXITY: Simple
LEAF RETENTION: Evergreen

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

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

FRUITING PERIOD:

DISTRIBUTION
HABITAT TYPE:
NATIVE RANGE:

HORTICULTURAL
Plant Sale Text:

Bloom Table Text:

NCBG Location:

Cultural Notes:

SOIL MOISTURE: Dry, Average, Moist/Wet
LIGHT EXPOSURE: Sun, Part Shade, Shade
MINIMUM HARDINESS ZONE:
MAXIMUM HARDINESS ZONE:
GERMINATION CODE:
WILDLIFE VALUE:
DEER RESISTANCE:

GRIM ACCESSIONS

acc_id acc_num acc_dt coll_id Action
570 1985-0199 View
571 1985-0200 View
572 1985-0201 View
573 1985-0202 View
574 1985-0203 View
575 1985-0205 View
576 1985-0206 View
588 1985-0221 View
1419 1986-1199 View
3072 1989-0022 View
3170 1990-0003 View
3840 1991-0535 View



GRIM PLANTINGS

plt_num acc_id loc_num pers_num inst_dt Action
1213 570 165 NCBG staff 1978-11-09 View
1214 571 165 NCBG staff 0000-00-00 View
1215 572 165 NCBG staff 1981-10-13 View
1216 573 165 NCBG staff 1981-11-30 View
1217 574 198 NCBG staff 0000-00-00 View
1218 575 165 NCBG staff 1980-05-05 View
1219 576 198 NCBG staff 0000-00-00 View
1235 588 165 NCBG staff 1982-02-11 View
1236 588 198 NCBG staff 1982-02-11 View
1237 588 198 NCBG staff 0000-00-00 View
1238 588 198 NCBG staff 0000-00-00 View
2481 1419 89 NCBG staff 0000-00-00 View
5097 3072 177 NCBG staff 0000-00-00 View
5320 3170 177 NCBG staff 1982-11-04 View
6149 3840 199 NCBG staff 0000-00-00 View

USDA PLANTS DATABASE

USDA Symbol: THOC2
USDA Common Name: Arborvitae
Native Status: L48 (N), CAN (N)
Distribution: USA (CT, IA, IL, IN, KY, MA, MD, ME, MI, MN, NC, NH, NJ, NY, OH, PA, RI, SC, TN, VA, VT, WI, WV), CAN (MB, NB, NS, ON, PE, QC)
Duration: Perennial
Growth Habit: Tree

NATIONAL WETLAND INDICATOR STATUS

Region:AGCPAKAWCBEMPGPHIMWNCNEWMVE
Status: FACW FACW FACW FACW FACW

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

2018 Natural Heritage Program List of Rare Plant Species of North Carolina

NHP IDS RANKROUNDED S RANKG RANKROUNDED G RANKSTATE STATUSFEDERAL STATUS
15312 SNR SNR G5 G5 W3

This information is derived from the 2018 North Carolina Natural Heritage Program List of Rare Plant Species.

WEAKLEY FLORA

SCIENTIFIC NAME: Thuja occidentalis
COMMON NAME: American Arborvitae, Northern White Cedar, Flat Cedar
SYNONYMY: [= C, F, FNA, G, Il, K, Pa, RAB, S, Tn, Va, W, WV]
PHENOLOGY: Mar-Apr.
HABITAT: Dry limestone, dolostone, and calcareous sandstone cliffs, talus, and boulderfields, rarely in our area in calcareous swamps, also planted and persisting around old homesites and cemeteries (mainly in the Mountains).
COMMENTS: NS, Hudson Bay, and MB south to PA (where considered strictly introduced by Rhoads & Block 2007), OH, n. IN, n. IL, and in the mountains to WV, w. VA, and e. TN. This species is alleged by various authors to have occurred as a native species in nw. NC on limestone bluffs in Alleghany, Ashe, and/or Burke counties, but it has not been relocated in this century, and little apparently suitable habitat occurs in NC.
RANGE MAP: Thuja occidentalis.png

Key to Map Symbols
ABOUT FAMILY (Weakley Flora)
Cupressaceae Bartlett 1830 (Cypress Family)
SUMMARY: A family of about 29 genera and about 130 species. Recent studies indicate that the separation of the Taxodiaceae from the Cupressaceae is not warranted, and they are here combined (Gadek et al. 2000; Brunsfeld et al. 1994). The subfamilial classification used here follows Gadek et al. (2000).
REFERENCE: Farjon (2005); Hart & Price (1990); Hardin (1971b); Watson & Eckenwalder in FNA (1993b); Page in Kramer & Green (1990).
ABOUT GENUS (Weakley Flora)
Thuja L. (Arborvitae)
SUMMARY: A genus of 5 species, trees, of e. North America, w. North America, and e. Asia.
REFERENCE: Chambers in FNA (1993b); Page in Kramer & Green (1990).

HERBARIUM RESOURCES

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

WEB RESOURCES

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

NCBG IMAGE RECORDS

ID IMAGE1: 5354
ID IMAGE2: 0
ID IMAGE3: 5354

From the Image Gallery


Image ID: 39449

Image ID: 39450

Image ID: 39451

Image ID: 39452

Image ID: 5355

Image ID: 5356

Image ID: 12117
8 photo(s) available in the Image Gallery

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