NameThatPlant.net: Alnus rugosa

Spermatophytes (seed plants): Angiosperms (flowering plants): Eudicots: Core Eudicots: Rosids: Fabids: Fagales

WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/24/22):
Alnus rugosa FAMILY Betulaceae Go to FSUS key

Dig deeper at SERNEC, a consortium of southeastern herbaria.

SYNONYMOUS WITH PLANTS NATIONAL DATABASE:
Alnus incana ssp. rugosa FAMILY Betulaceae

SYNONYMOUS WITH Flora of North America

Alnus incana ssp. rugosa

SYNONYMOUS WITH Britton & Brown Illus Flora of Northeast US & adjacent Canada (Gleason, 1952)

Alnus rugosa

COMMON NAME:
Speckled Alder

To see larger pictures, click or hover over the thumbnails.

USDA-NRCS PLANTS Database / Britton, N.L., and A. Brown. 1913 pnd_alru3_001_lvd

JK Marlow jkm0507g_22

July Pocahontas County WV

Cranberry Glades Botanical Area

Leaves broadest at or below middle, doubly-serrate with teeth of various sizes, per Weakley's Flora.

WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/24/22):
Alnus rugosa FAMILY Betulaceae

SYNONYMOUS WITH PLANTS NATIONAL DATABASE:
Alnus incana ssp. rugosa FAMILY Betulaceae

SYNONYMOUS WITH Flora of North America
Alnus incana ssp. rugosa

SYNONYMOUS WITH Britton & Brown Illus Flora of Northeast US & adjacent Canada (Gleason, 1952)
Alnus rugosa

2011

Tree
Perennial
Monoecious

Habitat: Braided streamhead seepage swamps (in VA), other seepy or saturated wetlands, per Weakley's Flora

Native: north of the Carolinas

map
CLICK HERE to see a map, notes, and images from Weakley's Flora of the Southeastern US.

Click here to see a map showing all occurrences known to SERNEC, a consortium of southeastern herbaria. (Zoom in to see more detail.)

LEAVES:
Deciduous
Simple
Alternate

FLOWER:
Spring/Summer
Staminate calyx 4-parted, pistillate calyx absent
Petals absent in pistillate flowers
4 stamens in staminate flowers
Inferior ovary
Unisexual

Flowers in catkins (staminate catkins elongate)

FRUIT:
Summer

TO LEARN MORE about this plant, look it up in a good book!

If a search such as "Carex leptalea var. leptalea" doesn't deliver the results you want, try "Carex leptalea".
Or, to minimize chances of a misspelling, try just "Carex le".

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