OF THE CAROLINAS & GEORGIA

Spermatophytes (seed plants): Angiosperms (flowering plants): Eudicots: Core Eudicots: Rosids: Malvids: Sapindales

WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/14/23):
Acer negundo var. negundo   FAMILY Sapindaceae   Go to FSUS key



INCLUDING PLANTS NATIONAL DATABASE:
Acer negundo var. negundo   FAMILY Aceraceae

SYNONYMOUS WITH Floristic Synthesis of North America. BONAP (Kartesz, 2021)

Acer negundo var. negundo

INCLUDING Floristic Synthesis of North America (Kartesz, 1999)

Acer negundo var. negundo

INCLUDING Floristic Synthesis of North America (Kartesz, 1999)

Acer negundo var. violaceum

INCLUDED WITHIN Aquatic & Wetland Plants of Southeastern US (Godfrey & Wooten, 1979 & 1981)

Acer negundo

INCLUDED WITHIN VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 115-01-001:

Acer negundo   FAMILY Aceraceae

INCLUDED WITHIN Manual of the Southeastern Flora (Small, 1933, 1938)

Negundo negundo

 

COMMON NAME:
Eastern Box Elder, Ash-leaved Maple, River Maple


         To see larger pictures, click or hover over the thumbnails.

image of Acer negundo var. negundo, Eastern Box Elder, Ash-leaved Maple, River Maple

Trees You Want to Know (Peattie, 1934); illustration by F.A. Michaux    dcp34_p43

        

image of Acer negundo var. negundo, Eastern Box Elder, Ash-leaved Maple, River Maple

Manual of the Trees of North America (Exclusive of Mexico) (Sargent, 1905)    mtna_i_732

        

image of Acer negundo var. negundo, Eastern Box Elder, Ash-leaved Maple, River Maple

Richard and Teresa Ware    rtw_acer_negundo

February        

With age, bark develops shallow fissures with narrow, often rounded, ridges, per Native Trees of the Southeast, An Identification Guide (Kirkman, Brown, & Leopold, 2007).

image of Acer negundo var. negundo, Eastern Box Elder, Ash-leaved Maple, River Maple

JK Marlow    jkm170320_151

March    Laurens County    SC

Charlie Lollis Memorial Park

Staminate flowers in long-stalked clusters, per Native Trees of the Southeast, An Identification Guide (Kirkman, Brown, & Leopold, 2007).

image of Acer negundo var. negundo, Eastern Box Elder, Ash-leaved Maple, River Maple

Keith Bradley    kab_acer_negundo_2081

March    Lexington County    SC

Three Rivers Greenway

image of Acer negundo var. negundo, Eastern Box Elder, Ash-leaved Maple, River Maple

Keith Bradley    kab_acer_negundo_2091

March    Lexington County    SC

Three Rivers Greenway

Pistillate flowers in long-stalked pendulous racemes, per Native Trees of the Southeast, An Identification Guide (Kirkman, Brown, & Leopold, 2007).

image of Acer negundo var. negundo, Eastern Box Elder, Ash-leaved Maple, River Maple

JK Marlow    s050316_h

March    Rutherford County    NC

Leaf scars opposite; terminal bud present; twigs red or green.

image of Acer negundo var. negundo, Eastern Box Elder, Ash-leaved Maple, River Maple

JK Marlow    jkm0504j_09

April    Greenville County    SC

Roadside

Flowers appear in early spring before the leaves, per Native Trees of the Southeast, An Identification Guide (Kirkman, Brown, & Leopold, 2007).


click here to see other plants that look similar to this COMPARE flowers of Maple species

image of Acer negundo var. negundo, Eastern Box Elder, Ash-leaved Maple, River Maple

JK Marlow    jkm100513_034

May    Greenville County    SC

Lake Conestee Nature Park

Samara wing 2-3cm long, body 1.5-2cm long, per Vascular Flora of the Carolinas (Radford, Ahles, & Bell, 1968).

image of Acer negundo var. negundo, Eastern Box Elder, Ash-leaved Maple, River Maple

JK Marlow    s050511_a

May    Greenville County    SC

Cleveland Park

Leaflets coarsely toothed or slightly lobed on margins, per Native Trees of the Southeast, An Identification Guide (Kirkman, Brown, & Leopold, 2007).

image of Acer negundo var. negundo, Eastern Box Elder, Ash-leaved Maple, River Maple

JK Marlow    s050511_b

May    Greenville County    SC

Cleveland Park

image of Acer negundo var. negundo, Eastern Box Elder, Ash-leaved Maple, River Maple

JK Marlow    s050706_a

July    Greenville County    SC

Can be mistaken for Poison Ivy, but that has alternate leaves, per Trees of the Southeastern United States (Duncan & Duncan, 1988).


click here to see other plants that look similar to this COMPARE leaves of Poison Ivy and others confused with it

image of Acer negundo var. negundo, Eastern Box Elder, Ash-leaved Maple, River Maple

Richard and Teresa Ware    rtw_acer_negundo_4

August        

image of Acer negundo var. negundo, Eastern Box Elder, Ash-leaved Maple, River Maple

JK Marlow    jkm121006_335

October    Washington County    VA

Virginia Creeper Trail

Fruit is paired samaras, borne in drooping clusters, per Woody Plants of the Blue Ridge (Lance).

image of Acer negundo var. negundo, Eastern Box Elder, Ash-leaved Maple, River Maple

JK Marlow    jkm121024_685

October    Cherokee County    NC

Murphy River Walk

image of Acer negundo var. negundo, Eastern Box Elder, Ash-leaved Maple, River Maple

JK Marlow    jkm0211d_06

November    Greenville County    SC

 

 

WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/14/23):
Acer negundo var. negundo   FAMILY Sapindaceae

INCLUDING PLANTS NATIONAL DATABASE:
Acer negundo var. negundo   FAMILY Aceraceae

SYNONYMOUS WITH Floristic Synthesis of North America. BONAP (Kartesz, 2021)
Acer negundo var. negundo

INCLUDING Floristic Synthesis of North America (Kartesz, 1999)
Acer negundo var. negundo

INCLUDING Floristic Synthesis of North America (Kartesz, 1999)
Acer negundo var. violaceum

INCLUDED WITHIN Aquatic & Wetland Plants of Southeastern US (Godfrey & Wooten, 1979 & 1981)
Acer negundo

INCLUDED WITHIN VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 115-01-001:
Acer negundo   FAMILY Aceraceae

INCLUDED WITHIN Manual of the Southeastern Flora (Small, 1933, 1938)
Negundo negundo

 

Find by SCIENTIFIC NAME:

11

Tree
Perennial
Dioecious

Habitat: Riverbanks, swamps, bottomlands, also upslope on calcareous substrates, per Weakley's Flora

Native to the Carolinas & Georgia

Common (uncommon in GA Coastal Plain)

map
CLICK HERE to see a map, notes, and images from Weakley's Flora of the Southeastern US.

Click here to see a map showing all occurrences known to SERNEC, a consortium of southeastern herbaria. (Zoom in to see more detail.)

LEAVES:
Deciduous
Pinnately compound
Opposite

FLOWER:
Spring
Yellowish-green
Radially symmetrical
5 sepals
Unisexual

FRUIT:
Spring/Summer/Fall
Yellowish-green->Brown
Schizocarp composed of two 1-seeded samaras

 

TO LEARN MORE about this plant, look it up in a good book!



 


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