NameThatPlant.net: Vincetoxicum nigrum

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

WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/24/22):
Vincetoxicum nigrum FAMILY Apocynaceae Go to FSUS key

Dig deeper at SERNEC, a consortium of southeastern herbaria.

Check out EDDMapS.org to see where this has been reported.

Read more about Black Swallow-wort at Vascular Plants of North Carolina.

SYNONYMOUS WITH PLANTS NATIONAL DATABASE:
Cynanchum louiseae FAMILY Asclepiadaceae

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

WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/24/22):
Vincetoxicum nigrum FAMILY Apocynaceae

SYNONYMOUS WITH PLANTS NATIONAL DATABASE:
Cynanchum louiseae FAMILY Asclepiadaceae

4163

Woody vine
Perennial

Habitat: Disturbed areas, per Weakley's Flora

Non-native: Mediterranean Europe

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

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!

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".

Less is more: If "pencil flower" doesn't deliver the results you want, try "pencil".