228. WOOLY PIPEVINE (_Aristolochia tomentosa_ Sims.) or Dutchman’s pipe.
Habitat: low, rich woods, not abundant. Leaves: large, round-heart
shaped, downy, soft, margins entire. Stems: slender, very high climbing.
Flowers: tube u-curved like a Dutchman’s pipe, with lobes turned back;
small yellowish, inconspicuous flowers not to be confused with the
leather flower (Viorna) which is also sometimes called pipevine; Viorna
has four thick, leathery, purplish petals shaped like the bowl of a
pipe. Fruit: many flat, black, shiny, pie-shaped seeds packed in a
six-angled, cylindrical seed case about 1 to 2 inches in diameter and 2
to 3 inches long. A closely related cultivated vine is often planted
where a dense screen is desired. B (Vol. I, p. 646).
[Illustration: 228 wooly pipevine]