Plant Index


 
 
 

Acer negundo

Acer negundo L.

eastern boxelder

Acer negundo (Eastern Boxelder)
Image ID: 9803
Image by: Sorrie, Bruce A.
Image Collection: NCBG Digital Library

PLANT INDEX

ID_PLANT: ACNE2
SCIENTIFIC NAME: Acer negundo
Include in WOTAS: 0
Publish to Web: 1
Last Modified: 2019-11-29

GENUS INDEX

GENUS CODE: ACER
GENUS SCIENTIFIC: Acer
GENUS AUTHORITY: L.
GENUS COMMON: Maple
GENUS SUMMARY: A genus of about 111-126 species, trees and shrubs, primarily north temperate.
GENUS IDENTIFICATION:
GENUS REFERENCES: Murray (1970)=Z; van Gelderen, de Jong, and Oterdoom (1994); Acevedo-Rodrνguez, van Welzen, Adema, and van der Ham in Kubitzki (2011).

FAMILY INDEX

FAMILY CODE: ACERAC
FAMILY SCIENTIFIC: Aceraceae
FAMILY AUTHORITY: A.L. de Jussieu 1789
FAMILY COMMON: Maple Family
FAMILY SUMMARY:
FAMILY REFERENCE:

NCBG DESCRIPTIVES

INTRO: A small to medium-sized, deciduous tree usually 15–20 m. (50–65 ft.) tall when fully grown. Bark of mature trunks is furrowed and ridged, sometimes with small plates, becoming deeply furrowed with age. Young twigs are typically green. Leaves are opposite and pinnately compound, most often with 3–5 (occasionally 7–9) leaflets. Leaflet margins usually have scattered, coarse teeth or small lobes, especially on the portion toward the leaf tip, but may also be entire. Male and female flowers occur on separate trees. As with other maples, fruits consist of two, winged samaras that split apart when mature and travel on the breeze as they spin to the ground.
STEMS: Pith continuous. Young twigs (1-year-old or less) green or red, glabrous or pubescent, puberulent or tomentose. Twigs (2–4 years old) glabrous or pubescent. Leaf scars U-shaped or V-shaped, bundle scars 3 per leaf scar, stipule scars absent. Bark of mature trunks furrowed or plated or ridged.
LEAVES: Leaves deciduous, compound, trifoliolate or once pinnately compound, petiolate, opposite or decussate, 12–30 cm long, 11–21 cm wide. Leaf upper surface green, glabrous or glabrate. Leaf lower surface green, glabrate or pubescent or with tufts in vein axils, pilose or tomentose or villous. Leaflets nearly sessile or sessile, 3–5(–9) per leaf, (5–)6–10(–12) cm long, (3–)4–7(–9) cm wide, elliptic or lanceolate or oblong or obovate or oval or ovate or rhombic, leaflet margins entire or serrate, unlobed or shallowly lobed or moderately lobed, pinnately lobed, leaflet apices acuminate or acute, leaflet bases cordate or cuneate or oblique or obtuse or rounded, leaflet venation pinnate, terminal leaflet present (odd-pinnate). Petioles 5–8 cm long, glabrous or glabrate or pubescent. Rachises glabrous or glabrate or pubescent. Stipules present or absent, caducous.
INFLORESCENCE: Inflorescences axillary, racemes or simple umbels, flowers stalked.
FLOWERS: Flowers unisexual or pistillate or staminate. Perianth. Calyx radially symmetric, aposepalous or synsepalous. Sepals (4–)5(–12) per flower, calyx tubes 1.5 mm long, 0.5–1 mm long, ascending, green or yellow-green. Corolla absent. Androecium. Stamens 4–6 per flower, separate, anthers 2–4 mm long. Gynoecium. Ovaries superior, pistils 1 per flower. Gynoecium syncarpous, 2 carpels per flower, styles 2 per pistil, styles 0–0.5 mm long, stigmas 4–6 mm long, placentation axile.
FRUITS: Fruits mericarps or samaras or schizocarps, (2.5–)3–4.5(–5) cm long, yellow or yellow-green, fruit maturation 1 years.
COMMENTS:
HEIGHT: (5–)15–20(–30) m tall.

DURATION: Perennial
HABIT: Tree

LEAF ARRANGEMENT: Opposite
LEAF COMPLEXITY: Pinnate
LEAF RETENTION: Deciduous

FLORAL CHARACTERISTICS
SYMMETRY: Radial (Actinomorphic)
BLOOM TIME: Flowering March or April.
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
x x

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

FRUITING PERIOD:

DISTRIBUTION
HABITAT TYPE: Bottomlands, Moist forests, Woods margins
NATIVE RANGE: eastern North America & Mexico

HORTICULTURAL
Plant Sale Text:

Bloom Table Text:

NCBG Location:

Cultural Notes:

SOIL MOISTURE:
LIGHT EXPOSURE:
MINIMUM HARDINESS ZONE:
MAXIMUM HARDINESS ZONE:
GERMINATION CODE:
WILDLIFE VALUE:
DEER RESISTANCE:

GRIM ACCESSIONS

acc_id acc_num acc_dt coll_id Action
609 1985-0243 View
3684 1991-0379 View
4541 1992-0697 View
5047 1995-0166 View
5425 1995-0548 View
5885 1995-1013 View
7184 1999-0145 1999-11-08 View
7947 2002-0098 2007-07-20 View



GRIM PLANTINGS

plt_num acc_id loc_num pers_num inst_dt Action
1264 609 172 NCBG staff 0000-00-00 View
5987 3684 199 NCBG staff 0000-00-00 View
6869 4541 200 NCBG staff 1993-03-01 View
7466 5047 203 NCBG staff 1999-03-11 View
7939 5425 204 NCBG staff 1993-01-01 View
8400 5885 2 NCBG staff 1992-01-01 View
8401 5885 2 NCBG staff 1992-01-01 View
8402 5885 2 NCBG staff 1992-01-01 View
8403 5885 2 NCBG staff 1992-01-01 View
10131 7184 157 NCBG staff 1999-11-05 View
11189 7947 164 NCBG staff 2002-01-01 View

USDA PLANTS DATABASE

USDA Symbol: ACNE2
USDA Common Name: Boxelder
Native Status: L48 (N), CAN (N)
Distribution: USA (AL, AR, AZ, CA, CO, CT, DC, DE, FL, GA, IA, ID, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, MT, NC, ND, NE, NH, NJ, NM, NV, NY, OH, OK, OR, PA, RI, SC, SD, TN, TX, UT, VA, VT, WA, WI, WV, WY), CAN (AB, BC, MB, NB, NS, NT, ON, PE, QC, SK)
Duration: Perennial
Growth Habit: Tree

NATIONAL WETLAND INDICATOR STATUS

Region:AGCPAKAWCBEMPGPHIMWNCNEWMVE
Status: FAC FACW FAC 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:
COMMON NAME:
SYNONYMY:
PHENOLOGY:
HABITAT:
COMMENTS:
RANGE MAP:

Key to Map Symbols
ABOUT FAMILY (Weakley Flora)
Aceraceae A.L. de Jussieu 1789 (Maple Family)
SUMMARY:
REFERENCE:
ABOUT GENUS (Weakley Flora)
Acer L. (Maple)
SUMMARY: A genus of about 111-126 species, trees and shrubs, primarily north temperate.
REFERENCE: Murray (1970)=Z; van Gelderen, de Jong, and Oterdoom (1994); Acevedo-Rodrνguez, van Welzen, Adema, and van der Ham in Kubitzki (2011).

HERBARIUM RESOURCES

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

WEB RESOURCES

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

NCBG IMAGE RECORDS

ID IMAGE1: 9803
ID IMAGE2: 0
ID IMAGE3: 3960

From the Image Gallery


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10 photo(s) available in the Image Gallery

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