Acer glabrum (Douglas Maple)
- Features photos and descriptions of entire tree, leaves, fruit, and bark. Includes facts about habitat and human uses.
- http://www.for.gov.bc.ca/hfd/library/documents/treebook/douglasmaple.htm

Acer glabrum (Rocky Mountain Maple)
- Brief fact sheet and photos of leaf, fruit, flower, twig, and bark.
- http://www.cnr.vt.edu/dendro/dendrology/syllabus/aglabrum.htm

Acer glabrum
- Includes distribution and occurrence, botanical and ecological characteristics, value and use, and fire ecology.
- http://www.fs.fed.us/database/feis/plants/shrub/acegla/