OF THE CAROLINAS & GEORGIA

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

WEAKLEY'S FLORA (5/21/15):
Vincetoxicum nigrum   FAMILY Apocynaceae


SYNONYMOUS WITH PLANTS NATIONAL DATABASE:
Cynanchum louiseae   FAMILY Asclepiadaceae

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

 

COMMON NAME:
Black Swallow-wort, Dog-Strangling Vine


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

image of Vincetoxicum nigrum, Black Swallow-wort, Dog-Strangling Vine

USDA-NRCS PLANTS Database / Britton, N.L., and A. Brown. 1913    pnd_cyni_001_lvd

        

 

WEAKLEY'S FLORA (5/21/15):
Vincetoxicum nigrum   FAMILY Apocynaceae

SYNONYMOUS WITH PLANTS NATIONAL DATABASE:
Cynanchum louiseae   FAMILY Asclepiadaceae

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

 

Search by scientific name:

4163

Woody vine
Perennial

Non-native: Mediterranean Europe

Documented growing wild in - - -

Look for it in disturbed areas. It is reported for many states in the northeast US, south to MD, KY, TN, per Weakley's Flora

map
Click here to see a more detailed map from University of North Carolina at Chapel Hill Herbarium,

or click here to see a map from SERNEC, a consortium of southeastern herbaria.


Invasive?

This plant may be causing problems in natural areas outside its native range, according to authorities such as:

 

 

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

LEAVES:
Simple
Opposite

FLOWER:
Spring/Summer
Dark purple, almost black
Radially symmetrical
5-lobed corolla
Superior ovary

FRUIT:

 

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



 


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