1. densely branching perennial of the eastern United States with white to crimson or purple flowers; [syn: swamp milkweed, Asclepias incarnata]
WordNet (r) 3.0 (2006):
swamp milkweed
n 1: densely branching perennial of the eastern United States
with white to crimson or purple flowers [syn: swamp
milkweed, Asclepias incarnata]