Deciduous shrub or small tree, up to 10 m tall; stems branching, glabrous, young twigs reddish; bark greyish to reddish-purple.
Opposite, 2-12 cm wide, 3- to 5-lobed, glabrous to sparsely glandular short-hairy, coarsely toothed, paler on the lower surface, turning yellow to orange or crimson in fall.
Inflorescence of flat-topped, terminal or axillary clusters of about 10 flowers, male and female flowers on separate or same plants, appearing with the leaves; petals and sepals yellowish-green.
Winged, in pairs, 2-3 cm long, greenish-brown, pairs attached in a V-shape.
Present from Summer to Fall
Source: The USDA
||Value / Class
Moisture Regime (SMR)
[0 - very xeric; 4 - mesic;
8 - hydric]
of field plots
species was recorded in:
BEC Zone Class
All BEC Zones (# of stations/zone) species was recorded in
|AT(2), BG(58), BWBS(1), CDF(4), CWH(219), ESSF(170), ICH(2257), IDF(834), MS(508), PP(69), SBPS(2), SBS(480)|
Source: Klinkenberg 2013
Synonyms and Alternate Names:
Acer diffusum Greene
Acer glabrum subsp. diffusum (Greene) E. Murray
Acer glabrum subsp. neomexicanum (Greene) E. Murray
Acer glabrum var. parviflorum E. Murray
Acer neomexicanum Greene
TAXONOMIC KEY TO ACER
1. Leaves pinnately compound; petals absent ..........A. negundo
2. Flowers 10-50; inflorescence racemose or in panicles; trees up to 30 m tall.
3. Leaves grey, white or purplish below, the stalks without milky juice when cut; inflorescence in long, hanging panicles; fruits glabrous ..........A. pseudoplatanus
4. Leaves lobed beyond the middle, the tips abruptly sharp-pointed; inflorescence racemose; fruits hairy ..........A. macrophyllum
2. Flowers usually less than 10; inflorescence umbellate or corymbose; plants usually shrublike and less than 10 m tall.
5. Leaves 3- to 5-lobed, glabrous to sparsely glandular short-hairy; sepals green.......... A. glabrum