Plant · GBIF taxon 3189835
bigleaf maple
Acer macrophyllumAlso known as Oregon Maple, Broadleaf Maple
Dominating the damp forest understories and river valleys of the Pacific coast, this imposing hardwood produces the largest leaves of any maple, frequently spanning over thirty centimeters across. Its sprawling limbs create dense canopy microclimates that support enormous draperies of epiphytic mosses, lichens, and ferns, weighing up to four times more than the foliage itself. In spring, pendulous racemes of fragrant yellow-green blossoms emerge alongside unfurling leaves, drawing native pollinators before yielding large, bristly winged seeds.
DeciduousForest TreeNative
1 / 7—observations
—countries
—peak records
Least ConcernConservation statusIUCN Red List categoriesLCNTVUENCREWEXLeast ConcernRed List categories, explained →
Diet & prey
- Sunlight
- Water
- Soil nutrients
Predators
- Cryptostroma corticale
- Scolytus wood-boring beetles
- Black-tailed deer
ThreatsSevere drought, fungal cankers, and urban development
HabitatsTemperate rainforests, riparian woodlands, and mixed conifer forests
Life span150–300 years
Size / weightNot available
Classification
- OrderSapindales
- FamilySapindaceae
- GenusAcer
- SpeciesAcer macrophyllum
Range data is not available yet.
Interaction riskLow
- Low
- Moderate
- High
- Very high
- Why interaction risk is low
- Safe to observe at a normal distance.
Responsible observation
- Canopy gardens: Examine the upper branches through binoculars to spot miniature ecosystems of ferns and mosses.
- Seed identification: Inspect pairs of bristly samaras connected at sharp angles in late summer and autumn.
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