OF THE CAROLINAS & GEORGIA

Spermatophytes (seed plants): Angiosperms (flowering plants): Eudicots: Core Eudicots: Asterids: Lamiids: Gentianales

WEAKLEY'S FLORA (11/30/12):
Asclepias verticillata   FAMILY Apocynaceae   NEW! Click to go to FSUS key


SYNONYMOUS WITH PLANTS NATIONAL DATABASE:
Asclepias verticillata   FAMILY Asclepiadaceae

SYNONYMOUS WITH VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 157-01-003:
Asclepias verticillata   FAMILY Asclepiadaceae

 

COMMON NAME:
Whorled Milkweed, Narrowleaf Milkweed


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

image of Asclepias verticillata, Whorled Milkweed, Narrowleaf Milkweed

USDA-NRCS PLANTS Database / Britton, N.L., and A. Brown. 1913    pnd_asve_001_lvd

        

image of Asclepias verticillata, Whorled Milkweed, Narrowleaf Milkweed

Richard and Teresa Ware    rtw_a_verticillata

June        

image of Asclepias verticillata, Whorled Milkweed, Narrowleaf Milkweed

Richard and Teresa Ware    rtw_a_verticillata_b

June        

Horns very narrowly triangular, much surpassing the hoods, per Wildflowers in the Field and Forest.

image of Asclepias verticillata, Whorled Milkweed, Narrowleaf Milkweed

JK Marlow    jkm130718_440

July    McDowell County    NC

Conspicuous whorls of linear leaves on a slender stem make this easy to ID, per Atlantic Coastal Plain Wildflowers.

image of Asclepias verticillata, Whorled Milkweed, Narrowleaf Milkweed

Will Stuart    wil_8440701897_34aa2724ef

July    Anson County    NC

image of Asclepias verticillata, Whorled Milkweed, Narrowleaf Milkweed

Will Stuart    wil_8447573271_aff39a84fe

July    Anson County    NC

The petals turned downward, the upright hoods topped by protruding horns, per Atlantic Coastal Plain Wildflowers.

image of Asclepias verticillata, Whorled Milkweed, Narrowleaf Milkweed

Steve Marlow    snm102712_009

October    Pickens County    SC

Glassy Mountain Heritage Preserve

Narrow spindle-shaped follicles, 2-3" long, dehiscent along 1 suture, per Wildflowers of Tennessee, the Ohio Valley, and the Southern Appalachians.

 

WEAKLEY'S FLORA (11/30/12):
Asclepias verticillata   FAMILY Apocynaceae

SYNONYMOUS WITH PLANTS NATIONAL DATABASE:
Asclepias verticillata   FAMILY Asclepiadaceae

SYNONYMOUS WITH VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 157-01-003:
Asclepias verticillata   FAMILY Asclepiadaceae

 

Find by SCIENTIFIC NAME:

2285

Forb
Perennial

Native to the Carolinas & Georgia

Habitat: barrens, thin soils of rock outcrops (especially mafic or calcareous rocks), open woodlands, longleaf pine sandhills, pine flatwoods, road and powerline rights-of-way, per Weakley's Flora

map
NEW! Click here to see a map from Weakley's Flora of the Southeastern US showing range and abundance.

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

DOES THE PLANT HAVE "MILKY SAP"?
Has milky sap (latex)

LEAVES:
Simple
Mostly in whorls of 3-6 (sometimes opposite)

FLOWER:
Summer/Fall
Greenish-white petals often tipped with rose-purple
Bisexual
Radially symmetrical
5-merous
5-lobed corolla
Superior ovary

Flowers in 2-8 umbels from upper leaf axils

FRUIT:
Summer/Fall
Follicle

 

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



 


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