Acer negundo L.
Ash-leaf maple, Ash-leaved maple, Box elder, Boxelder, Fresno de guajuco
Aceraceae (Maple Family)
USDA Symbol: acne2
Ash-leaf maple or box elder is usually a small to medium-sized tree, 35-50 ft. tall, commonly with a short trunk and widely spreading branches and light green foliage. It doesn’t look like other maples because of its irregular growth, sprouting base, and compound leaves. Fall foliage is usually insignificant.
Box Elder is classed with maples, having similar, paired key fruits, but is easily distinguishable by the pinnately compound leaves. Hardy and fast-growing, it is planted for shade and shelterbelts but is short-lived and easily broken in storms. Common and widely distributed, it is spreading in the East as a weed tree. The common name indicates the resemblance of the foliage to that of elders (Sambucus) and the whitish wood to that of Box (Buxus sempervirens L.).
From the Image Gallery
Plant CharacteristicsDuration: Perennial
Leaf Retention: Deciduous
Leaf Arrangement: Opposite
Leaf Complexity: Pinnate
Leaf Shape: Elliptic
Leaf Venation: Pinnate
Leaf Pubescence: Puberulent
Leaf Margin: Lobed , Serrate
Leaf Apex: Acute
Leaf Base: Rounded
Breeding System: Flowers Unisexual , Dioecious
Fruit Type: Samara
Size Notes: 35-60 feet
Leaf: Opposite, pinnately compound, with 3, 5, or 7 leaflets; each leaflet elliptic to ovate, pointed at the tip, tapering or rounded at the base, usually coarsely toothed along the edges, light green and smooth on the upper surface, paler on the lower surface, up to 4 inches long.
Autumn Foliage: yes
Flower: Flowers insignificant. Male and female borne on separate trees, several in a cluster, greenish yellow, appearing as the leaves begin to unfold.
Fruit: Samaras 1-seeded, pale yellow, many, in long, drooping clusters, each one 1 1/2-2 inches long, maturing in autumn and persisting in the spring.
Size Class: 36-72 ft.
Bloom InformationBloom Color: Yellow , Green , Brown
Bloom Time: Mar , Apr
DistributionUSA: 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
Canada: AB , BC , MB , NB , NS , NT , ON , PE , QC , SK
Native Distribution: ME to Man., s. to n. FL & e. TX; also n. CA to CO, s. to s. Mex.
Native Habitat: Moist woods; stream banks; floodplains
Growing ConditionsWater Use: Medium
Light Requirement: Sun
Soil Moisture: Moist
CaCO3 Tolerance: High
Drought Tolerance: High
Soil Description: Variable.
Conditions Comments: Ash-leaf maple or box elder is usually a small to medium-sized tree, commonly with a short trunk and widely spreading branches and light green foliage. It doesnt look like other maples because of its irregular growth, sprouting base, and compound leaves. Fall foliage is usually insignificant.
BenefitUse Ornamental: This hardy, fast-growing tree can survive dry and extremely cold conditions, so it is widely planted as a shade and shelterbelt tree.
Use Wildlife: Birds, Other Showy Insects
Use Food: Plains Indians made sugar from the sap. When sugar was scarce, Prairie settlers sometimes tapped this tree to make maple syrup, but Manitoba maple is the least productive maple for this purpose.
Warning: The wood is weak and will break up in ice and wind.
Conspicuous Flowers: yes
Value to Beneficial InsectsSpecial Value to Honey Bees
This information was provided by the Pollinator Program at The Xerces Society for Invertebrate Conservation.
Butterflies and Moths of North America (BAMONA)Acer negundo is a larval host and/or nectar source for:
Cecropia silkmoth |
Learn more at BAMONA
Find Seed or Plants
Find seed sources for this species at the Native Seed Network.
View propagation protocol from Native Plants Network.
National Wetland Indicator Status
From the National Organizations DirectoryAccording to the species list provided by Affiliate Organizations, this plant is on display at the following locations:
Lady Bird Johnson Wildflower Center - Austin, TX
Pineywoods Native Plant Center - Nacogdoches, TX
Nueces River Authority - Uvalde, TX
Natural Biodiversity - Johnstown, PA
Native Seed Network - Corvallis, OR
Jacob's Well Natural Area - Wimberley, TX
BibliographyBibref 1186 - Field Guide to Moths of Eastern North America (2005) Covell, C.V., Jr.
Bibref 1185 - Field Guide to Western Butterflies (Peterson Field Guides) (1999) Opler, P.A. and A.B. Wright
Bibref 354 - Native & Naturalized Woody Plants of Austin & the Hill Country (1981) Lynch, D.
Bibref 841 - Native Alternatives to Invasive Plants (2006) Burrell, C. C.
Bibref 297 - Trees of Central Texas (1984) Vines, Robert A.
Search More Titles in Bibliography
Additional resourcesUSDA: Find Acer negundo in USDA Plants
FNA: Find Acer negundo in the Flora of North America (if available)
Google: Search Google for Acer negundo
MetadataRecord Modified: 2007-09-04
Research By: NPC, JSC