A small fast-growing maple with compound leaves (unusual for maples).
§ Quick facts
§ Encyclopedia
Acer negundo, also known as the box elder, boxelder maple, Manitoba maple or ash-leaved maple, is a species of maple native to North America from Canada to Honduras. It is a fast-growing, short-lived tree with opposite, ash-like compound leaves. It is sometimes considered a weedy or invasive species, and has been naturalized throughout much of the world, including South America, Australia, New Zealand, South Africa, much of Europe, and parts of Asia.
Source: Wikipedia — Acer negundo Licensed under CC BY-SA 4.0
§ Identification
Field marks. Tree with 3–7 leaflet compound leaves; pale green twigs; large clusters of paired samaras.
Similar species. Ashes (similar leaves; different bark). True maples (simple leaves).
§ Diet & behavior
Diet. N/A — photosynthesis
Behavior. Only maple species in North America with compound leaves. Fast-growing pioneer on disturbed soils and riverbanks.
§ Range
Across North America
§ Habitat
River bottoms, riparian areas
§ Threats
Habitat loss, considered "trash tree" in some areas.
§ Conservation status
According to the IUCN Red List, the box elder (eastern) is currently classified as Least Concern.
§ What helps
Plant native box elder. Don't over-tidy riparian areas.
§ Further reading
- Wikipedia — Acer negundo
- www.nwf.org — authoritative profile of Acer negundo
- iNaturalist · taxon 49162
- IUCN Red List — search for Acer negundo
- GBIF occurrence records
- Encyclopedia of Life — Acer negundo
§ Sources cited
- USDA Forest Service Silvics Manual
