Spermatophytes (seed plants): Angiosperms (flowering plants): Eudicots: Core Eudicots: Asterids: Lamiids: Gentianales
WEAKLEY'S FLORA (2/8/20):
Asclepias perennis
FAMILY
Apocynaceae
NEW! Click to go to FSUS key
Dig deeper at SERNEC, a consortium of southeastern herbaria.
Read more about Aquatic Milkweed at Vascular Plants of North Carolina.
SYNONYMOUS WITH
PLANTS NATIONAL DATABASE:
Asclepias perennis
FAMILY
Asclepiadaceae
SYNONYMOUS WITH
VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 157-01-002:
Asclepias perennis
FAMILY
Asclepiadaceae
SYNONYMOUS WITH
Manual of the Southeastern Flora (Small, 1933, 1938)
Asclepias perennis
COMMON NAME:
Swamp Milkweed, Swampforest Milkweed, Swamp White Milkweed, Aquatic Milkweed
To see larger pictures, click or hover over the thumbnails.
)
USDA-NRCS PLANTS Database / Britton, N.L., and A. Brown. 1913 pnd_aspe_001_lvd
)
John B. Nelson jbn_5745134374_99a0cca6bf
May
Flowers in 1-2" wide axillary umbels, hoods with prominent protruding horns, per Atlantic Coastal Plain Wildflowers.
)
JK Marlow jkm190702_9698
July Greenville County SC
In cultivation
)
JK Marlow jkm190702_9700
July Greenville County SC
In cultivation
)
JK Marlow jkm190702_9701
July Greenville County SC
In cultivation
The 12-24" stems are conspicuously leafy, per Atlantic Coastal Plain Wildflowers.
)
JK Marlow jkm190702_9702
July Greenville County SC
In cultivation
Leaves elliptic to lanceolate, 6-12cm long, 1-3cm wide, per Vascular Flora of the Carolinas.
WEAKLEY'S FLORA (2/8/20):
Asclepias perennis
FAMILY
Apocynaceae
SYNONYMOUS WITH
PLANTS NATIONAL DATABASE:
Asclepias perennis
FAMILY
Asclepiadaceae
SYNONYMOUS WITH
VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 157-01-002:
Asclepias perennis
FAMILY
Asclepiadaceae
SYNONYMOUS WITH
Manual of the Southeastern Flora (Small, 1933, 1938)
Asclepias perennis
2882
Forb
Perennial
Native to the Carolinas & Georgia
Common in GA-SC Coastal Plain (rare in NC))
Habitat: Cypress-gum swamps, bottomland hardwood forests, marshes, per Weakley's Flora
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
Opposite
Leaves have petioles.
FLOWER:
Summer
White
Bisexual
Radially symmetrical
5-merous
5-lobed corolla, lobes reflexed
Superior ovary
Flowers in 2-4 umbels, from upper leaf axils or appearing terminal
FRUIT:
Summer/Fall
Follicle
TO LEARN MORE about this plant, look it up in a good book!
- All About South Carolina Wildflowers p110
- Atlantic Coastal Plain Wildflowers p113
- Wildflowers of the Atlantic Southeast p127
- Wildflowers of the Carolina Lowcountry p125
- Wildflowers of the Eastern United States p067
- Wildflowers of Tennessee p191
- Wildflowers of Tennessee, the Ohio Valley, and the Southern Appalachians p228