Norway maple

not listed

NNA - Not applicable

SNA - Not applicable

not listed

Norway maple is listed as an invasive terrestrial plant by the Minnesota Department of Natural Resources.

Specially Regulated Plant

In 2020, the Minnesota Department of Agriculture added Norway maple to the Specially Regulated Plant list.

Sellers shall affix a label directly to the plant or container packaging that is being sold that advises buyers to only plant Norway maple and its cultivars in landscapes where the seedlings will be controlled by mowing or other means. Norway maple seed is wind dispersed and trees should be planted at least 100 yards from natural areas.

Norway maple forms dense canopy, reducing native plant diversity in the understory.

UPL - Obligate upland

UPL - Obligate upland

UPL - Obligate upland

The buds are purple or green with a purplish tint. The leaves are often wider than long. The leaves, leaf stalks, and twigs exude a white sap when cut. The winged seeds are produced in pairs that diverge at nearly a 180° angle.

40′ to 60′

No records are kept for nonnative species.

Green

Residential areas

April to May

Tar Spot (Rhytisma acerinum) forms few large black spots on maple leaves.

Sources

2, 4, 22, 28, 29, 30.

Native to Europe and Asia. Introduced into the United States as a landscape tree. Escaped cultivation and naturalized.

Tree

Leaves

Fruit