Speckled AlderAlnus incana
A deciduous, thicket-forming shrub or small tree sometimes growing to 20' tall or more. This species has been planted as an ornamental at water edges. Its root mass prevents erosion on stream banks and enriches soil by making nitrogen available to other plants. Use this plant in restorations, pond edges, and acidic soil conditions.
USDA symbol: ALIN2
General Information
| Plant Type | Shrub |
|---|---|
| Height | 15 to 25 feet |
| Light Exposure | Sun, Part Sun |
| Soil Moisture | Medium |
| Bloom Color | Yellow, Red |
Tolerances
| Flooding / Inundation Tolerance | Very High |
|---|---|
| General Resilience | 6 |
| Salt Tolerance | Medium |
| Stress Tolerance | Fire Tolerant, General Disturbance |
Pollinator Value: Medium
| Bloom Months | March to May |
|---|---|
| Larval Host of | Moths |
| Specific Pollinators Hosted | Caloptilia alnicolella, Sthenopis argenteomaculatus |
Project Planning
| Project Type | Erosion Control, Restoration |
|---|---|
| Coefficient of Conservatism | 9 |
| Herbivore Sensitivity | Medium |
| Lifespan | Perennial |
| Rate of Spread | Slow |
| Soil Stabilization | Deep |
| Vegetative Reproduction | Clonal |
Range
| County | Aitkin, Anoka, Becker, Beltrami, Benton, Carlton, Cass, Chisago, Clearwater, Cook, Crow Wing, Dakota, Douglas, Goodhue, Houston, Hubbard, Isanti, Itasca, Kanabec, Kittson, Koochiching, Lake, Lake of the Woods, Mahnomen, Marshall, Mille Lacs, Morrison, Mower, Norman, Otter Tail, Pennington, Pine, Polk, Ramsey, Roseau, Sherburne, St. Louis, Stearns, Todd, Wabasha, Wadena, Washington, Winona, Wright |
|---|---|
| Ecoregion | Driftless Area, Lake Agassiz Plain, North Central Hardwood Forests, Northern Glaciated Plains, Northern Lakes and Forests, Northern Minnesota Wetlands, Western Cornbelt Plains |
| Approximate Eco Province | Eastern Broadleaf Forest, Laurentian Mixed Forest, Prairie Parkland, Tallgrass Aspen Parklands |