SafePlants

Mountain Maple (Acer spicatum) and Rocky Mountain Maple (Acer glabrum)

This page provides information about two distinct species of maple trees: Mountain Maple (Acer spicatum) and Rocky Mountain Maple (Acer glabrum). While they share the common name "Mountain Maple" and belong to the same genus, they have distinct characteristics and geographic distributions.

Considerations for Pets

• Wood Products: Keep in mind this tree is known for its maple syrup production, which may contain additives or preservatives that are potentially harmful to pets if ingested. Always read labels carefully and consult a veterinarian if you have any concerns.

Considerations for Children

• Sap Production: Mountain Maples are tapped for their sap to produce maple syrup. Be aware that the collection process might involve equipment and potential hazards.

Nomenclature and Taxonomy

• Scientific Name: Acer spicatum (Mountain Maple), Acer glabrum (Rocky Mountain Maple)
• Family: Aceraceae (Maple Family)
• Synonyms:
  • For Rocky Mountain Maple (Acer glabrum): Acer glabrum var. glabrum, Acer glabrum subsp. glabrum
• Common Names: Mountain Maple, White Maple, Moose Maple, Douglas Maple, Three Leaf Rocky Mountain Maple, Rose-fruit Rocky Mountain Maple, Sierra Maple.

Distribution and Habitat

• Mountain Maple (Acer spicatum): Native to northeastern North America, ranging from Saskatchewan to Newfoundland and south to Pennsylvania. It thrives in deep, rich, moist soils in cool habitats. Found throughout southeastern Canada and the northeastern United States.
• Rocky Mountain Maple (Acer glabrum): Native to western North America.

Morphological Characteristics and Growth Habits

• Mountain Maple (Acer spicatum): Described as a tall and spreading shrub or small understory tree, typically growing to 20-35 feet tall. It often has multiple trunks and a mushroom-shaped habit. The bark is thin and ranges from dull reddish to maroon-purple. Leaves are opposite, simple, orbicular, and 3 to 4 inches long, with regularly toothed and shallowly lobed edges. Buds have two conspicuous outer scales.
• Rocky Mountain Maple (Acer glabrum): A small, rather delicate-looking tree with opposite, ascending to erect branches and rounded twigs. Can grow to be about 3 meters tall.

Ecological Role

• Mountain Maple is noted for its importance in riparian systems, where its dense growth provides valuable habitat.

Quirky Facts

• The Latin name of Mountain Maple, spicatum, is a misnomer, as it suggests the species has a spike, when it does not.
• Mountain Maple is considered the smallest maple species and has the most northerly range.

Additional Information

• Several maple syrup producers are mentioned, highlighting the economic importance of maple trees: Vermont Organic Maple Syrup, Georgia Mountain Maples, Tucker Mountain Maple, Roxbury Mountain Maple, Thorn Mountain Maple Sweets, Maine Gold, Green Mountain Sugar House, Deep Mountain Maple, Catskill Mountain Maple, Buck Mountain Maple Syrup, Mountain Maple Products, Orford's Sunday Mountain Maple Farm, St. Joseph Islands pure maple syrup.