Speckled Alder
Common Name: Speckled Alder
Latin Name: Alnus incana var. rugosa
Visit Plant Profile >>Description & Overview
A coarse small tree or large shrub with distinct whitish lenticels on the stems that give it its name. In late March to early April, clusters of yellow catkins are followed by persistent winged nutlets. Commonly found in wet soils this plant is responsible for the majority of the great trout streams in Wisconsin as it keeps our stream banks cool for spawning. Extremely valuable for many wildlife species. It also fixes nitrogen and is useful in restoring depleted sites. Previously treated as a unique species, Speckled Alder is now one of several varieties in the cosmopolitan species of Alnus incana.
Core Characteristics
Mature Height: 15-25'
Mature Width: 6-15'
USDA Hardiness Zone: to zone 3
Light Requirements: Full Sun, Part Shade
Features & Benefits: Attracts Birds, Attracts Butterflies, Wisconsin Native
Common Name: Speckled Alder
Latin Name: Alnus incana var. rugosa
Visit Plant Profile >>Description & Overview
A coarse small tree or large shrub with distinct whitish lenticels on the stems that give it its name. In late March to early April, clusters of yellow catkins are followed by persistent winged nutlets. Commonly found in wet soils this plant is responsible for the majority of the great trout streams in Wisconsin as it keeps our stream banks cool for spawning. Extremely valuable for many wildlife species. It also fixes nitrogen and is useful in restoring depleted sites. Previously treated as a unique species, Speckled Alder is now one of several varieties in the cosmopolitan species of Alnus incana.
Core Characteristics
Mature Height: 15-25'
Mature Width: 6-15'
USDA Hardiness Zone: to zone 3
Light Requirements: Full Sun, Part Shade
Features & Benefits: Attracts Birds, Attracts Butterflies, Wisconsin Native