Distribution: Occurring on both sides of the Cascades crest in Washington; Alaska to southern California.
Habitat: Moist woods from sea level to middle elevations in the mountains.
Flowers: March-June
Origin: Native
Growth Duration: Perennial
Conservation Status: Not of concern
Pollination: Bumblebees, wasps, wind
[none provided]
PNW Herbaria: Specimen records of Acer macrophyllum in the Consortium of Pacific Northwest Herbaria database.
WA Flora Checklist: Acer macrophyllum checklist entry.
OregonFlora: Acer macrophyllum information.
E-Flora BC: Acer macrophyllum atlas page.
CalPhotos: Acer macrophyllum photos.
USDA Plants: Acer macrophyllum information.