Acer glabrum

Acer glabrum

Acer glabrum leaves and seeds

Acer glabrum, commonly known as the Rocky Mountain maple, is a species of maple native to western North America. It is a small, deciduous tree or large shrub that is part of the Sapindaceae family. This species is notable for its adaptability to various environments and its role in local ecosystems.

Description

Acer glabrum typically grows to a height of 3 to 10 meters, although it can occasionally reach up to 12 meters. The bark is smooth and grayish-brown, while the twigs are slender and reddish-brown. The leaves are opposite, simple, and palmately lobed with three to five lobes. They are bright green on the upper surface and paler underneath, turning yellow or red in the fall.

The flowers of Acer glabrum are small, yellowish-green, and appear in clusters in the spring. The fruit is a double samara, with each seed having a wing that aids in wind dispersal.

Habitat and Distribution

Acer glabrum is found in a variety of habitats, including montane and subalpine forests, riparian zones, and rocky slopes. It is commonly found at elevations ranging from 900 to 3,000 meters. The species is distributed across the western United States and Canada, from Alaska and British Columbia south to California and New Mexico.

Ecology

Acer glabrum in its natural habitat

Acer glabrum plays a significant role in its ecosystem. It provides food and habitat for various wildlife species, including deer, elk, and birds. The leaves and twigs are browsed by herbivores, while the seeds are consumed by small mammals and birds.

The tree is also important for soil stabilization and erosion control due to its extensive root system. It is often used in reforestation and restoration projects.

Uses

Historically, Acer glabrum has been used by indigenous peoples for various purposes. The wood is lightweight and was used to make tools and utensils. The bark and leaves have been used in traditional medicine for their purported healing properties.

In modern times, Acer glabrum is valued for its ornamental qualities and is sometimes planted in gardens and parks for its attractive foliage and fall color.

Related pages

• Maple
• Deciduous tree
• Sapindaceae