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Vincetoxicum

We tentatively retain Vincetoxicum, following Liede & Täuber (2002) and the generic assignments in The Plant List (2013), but the generic limits in this group of Apocynaceae are still unsettled.

 

1. Corolla lobes pubescent above; flowering peduncles less than 2 cm long (to 2.5 cm in fruit).

V. nigrum

1. Corolla lobes glabrous above; flowering peduncles mostly 2–2.5 cm long.

V. rossicum

All species found in Vincetoxicum

Vincetoxicum nigrumBLACK SWALLOW-WORT 
Vincetoxicum rossicumDOG-STRANGLING VINE 

Citation:

MICHIGAN FLORA ONLINE. A. A. Reznicek, E. G. Voss, & B. S. Walters. February 2011. University of Michigan. Web. April 26, 2017. http://michiganflora.net/genus.aspx?id=Vincetoxicum.