Aliases: Cynanchum rossicum, Vincetoxicum rossicum, European swallow-wort
Last Seen: Twisting its way around farm fields, woodlands, riverbanks and roadsides in parts of Pennsylvania, Maryland, New York and New England.
Description: A twining vine with pairs of 3 to 4 inch-long leaves. Five-petaled, pale pink to reddish brown flowers appear in June or July. Flattened seed pods release downy seeds, like its relatives the milkweeds, from mid-summer through fall.
Hard to swallow...When pale swallow-wort, and its invasive cousin black swallow-wort,
enters an area it has been shown to ruin habitat for ground nesting
birds and insects, as well as chase out threatened native plant
species. No one is quite certain how widespread the plant is in
Pennsylvania, so be on the look out for it. For information on how to