Vascular Plants of North Carolina
Account for Allegheny-vine - Adlumia fungosa   (Aiton) Greene ex Britton, Sterns, and PoggenburgOnly member of Adlumia in NC.
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Section 6 » Order Papaverales » Family Fumariaceae
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Author(Aiton) Greene ex Britton, Sterns, and Poggenburg
DistributionOnly in the mountains, and essentially just the central and southern ranges; oddly, just a single county record north of Avery County (for Alleghany County), as this is a Northern species.

This Northern species ranges from eastern Canada south to PA and northern IL, south only in the Appalachians to southwestern NC and adjacent TN.
AbundanceRare to locally uncommon in the southern half of the mountains, but very rare in the northern half. This is a State Special Concern species.
HabitatThis is a species of high pH soil in mafic/calcareous rock habitats. It grows along cliffs, rocky slopes, roadbanks, edges of moist to mesic thickets, and openings in cool forests.
PhenologyBlooms from June to September, and fruits shortly after flowering.
IdentificationThis is an herbaceous vine that sprawls over other vegetation and can reach 10-12 feet long or high. It has alternate leaves, each consisting of 3 leaflets, and each leaflet is typically glove-shaped, with single small side lobes and a wide central lobe. Some leaflets can be unlobed. There are 3-5 flowers at each leaf axil, these dangling downward and pink in color. The flower is essentially an inflated tube with 2 tiny corolla lobes, somewhat like that of Squirrel Corn (Dicentra canadensis), and is about 3/4-1 inch long. This vine can hardly be confused with anything else, and because it is scarce, finding it, especially in bloom, is always an exciting moment.
Taxonomic CommentsNone

Other Common Name(s)Climbing Fumitory, Cliff-harlequin
State RankS2
Global RankG4
State StatusSC-V
US Status
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