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Tree Browser

With these characteristics: None

Maple, Rocky Mountain

Acer glabrum

Aceraceae - Maple

Description

Leaves: Opposite; simple; 3" to 5" wide and long; deciduous; 3- to 5-lobed or occasionally separated into 3 separate leaflets; sharply and doubly serrate margin; dark-green above and paler beneath; glabrous; petiole 1" to 4" long, slender, red; fall color yellow to a muted red.

Twigs/buds: Twigs slender; glabrous; green to red-brown.  Buds 1/8" to 1/4" long, red, glabrous, one pair of scales visible.

Flowers/fruit: Flowers mostly dioecious (some perfect); yellow-green; no petals; small, inconspicuous; appearing in late spring after leaves.  Fruit a samara; U-shaped, with wings nearly parallel, 3/4" to 1" long; pink when mature in summer; becoming light brown and wrinkled in fall.

Bark: Thin and fairly smooth; red-brown.

Wood: Unimportant; diffuse-porous; hard; dense.

General: A small tree native from the western Great Plains west to Oregon and Washington and from the Mexican border through most of British Columbia, including mountainous portions of Utah and the Intermountain West.  Prefers moist, protected sites along streams.  Shade tolerant.

Landscape Uses: This shrubby tree is rarely planted in cultivated landscapes, maybe because it is not very common in nurseries.  Plant in moist protected areas or in the shade of other trees, especially in warm valley sites.  Should be fairly tolerant of high soil pH.  Zones 4(3?)-7.

Cultivar: 'Rhodocarpum'.

Characteristics

General

Family:
Aceraceae - Maple
Cultivar Availability:
Yes
Hardiness Zone:
4-7
Type:
Broadleaf
Utah Native:
Yes

Growth

Growth Rate:
Medium
Mature Height:
Low
Longevity:
Medium
Is Good Under Power Lines:
Yes
Crown Shape:
Rounded

Ornamental

Bark:
No
Fall Color:
Yes
Flowers:
No
Foliage:
No
Fruit:
No

Tolerence

Shade:
Medium
Salt:
Medium
Drought:
Medium
Poor Drainage:
Medium
Alkalinity:
Medium
Transplanting:
High