Dutchman's pipe Aristolochiaceae Aristolochia
macrophylla Lam. symbol: ARMA7
Leaf: Alternate, simple, heart shaped, entire margins, 5 to 10 inches, petioles quite long and often curved, green above.
Flower: Very unique, curved pipe shape, nearly U-shaped, brownish purple and green, several inches long, appearing in early summer.
Fruit: Six-sided pod, 2 inches long, 3/4 inch wide, brown when ripe in September.
Twig: Slender, initially green, but turning brown, leaf scar U-shaped wrapping around small, clustered, wooly buds.
Bark: Brown, fairly smooth but develops shallow vertical splits.
Form: High climbing, twining vine.
Looks like: supplejack
Additional Range Information: Aristolochia macrophylla is native to North America. Range may be expanded by planting. See states reporting Dutchman's pipe.
More Information: Fall Color
External Links: USDA Plants Database
All material © 2018 Virginia Tech Dept. of Forest Resources and Environmental Conservation; Photos and text by: John Seiler, Edward Jensen, Alex Niemiera, and John Peterson; Silvics reprinted from Ag Handbook 654; range maps courtesy USGS from USDA "Atlas of United States Trees" by Elbert L. Little, Jr., Vol. 1 (1971) 3 (1976) 4 (1977) 5 (1978)