RMP8P1EC–Flowering Black swallow-wort, an exotic invasive flower
RM2BXCRX6–Vincetoxicum nigrum L Moench Vincetoxicum nigrum L Moench.
RMBKNMYF–detail bloeiwizje en bladeren
RMRG2R83–. The Canadian field-naturalist. 28 The Canadian Field-Naturalist Vol. 87. V medium V medium V nic Figure 1. Vincetoxicum species, a-d, V. medium, a, portion of upper part of stem, bearing two cymes, with flower buds, open flowers, and young fruits, b, fruits in late autumn, after dehiscence, c, leaves on lower part of stem, d, flower, e, V. nigrum, flower. Mass., &c.: a weed escaping from gardens", to the eighth (Fernald, 1950), in which its North American range was given as "Waste places, roadsides, thickets and fields. Me. to O., Pa. and Kans. (Natzd. from Eu.)." As Monac