species 43,685 observations
Grey Alder
Alnus incana
Field notes
Alnus incana, the grey alder, tag alder or speckled alder, is a species of multi-stemmed, shrubby tree in the birch family, with a wide range across the cooler parts of the Northern Hemisphere. Tolerant of wetter soils, it can slowly spread with runners and is a common sight in swamps and wetlands.
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353
native animals
supported in the US
supported in the US
-
Caterpillars
Moths and butterflies raised on it
Spotted Tussock Moth, Large Aspen Tortrix, Red-spotted Admiral, Pale Beauty
272
-
Hosted animals
Gall makers, leaf miners and other animals living on or in it
Willow Gall Limb Borer, Flat-headed Hardwood Borer, Dicerca hornii, Alder Gall Buprestid
15
-
Plant eaters
Animals that feed on it
Woolly Alder Aphid, Redpoll, American Beaver, Marbled Treehopper
62
-
Flower visitors
Pollinators and other flower visitors
Two-Marked Treehopper, Carolina Mantis, Stictocephala basalis, Lesser Long-nosed Bat
4
Children
Range
Greener is more native, amber more introduced; paler is less certain. How this was decided
Key traits
- Layer
- Trees
- Light
- Full sun Part shade Full shade
- Water use
- High
- Soil pH
- Neutral
From USDA PLANTS and the Lady Bird Johnson Wildflower Center.