OF THE CAROLINAS & GEORGIA

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

WEAKLEY'S FLORA (4/24/22):
Alnus rugosa   FAMILY Betulaceae   NEW! Click to go to FSUS key


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.

image of Alnus rugosa, Speckled Alder

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

        

image of Alnus rugosa, Speckled Alder

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 (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

 

Find by scientific name:

2011

Tree
Perennial
Monoecious

Native: north of the Carolinas

Documented growing wild in - - -

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

map
NEW! Click here to see a range map (and maybe identification notes) 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
Unisexual
Staminate calyx 4-parted, pistillate calyx absent
Petals absent in pistillate flowers
4 stamens in staminate flowers
Inferior ovary

Flowers in catkins (staminate catkins elongate)

FRUIT:
Summer

 

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



 


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