Adlumia fungosa (Allegheny Vine)

Plant Info
Also known as: Climbing Fumitory, Mountain Fringe
Genus:Adlumia
Family:Fumariaceae (Fumitory)
Life cycle:biennial
Origin:native
Status:
  • State Special Concern
Habitat:part shade, shade, sun; moist, rocky woods, thickets and slopes
Bloom season:June - September
Plant height:2 to 12 feet
Wetland Indicator Status:none
MN county distribution (click map to enlarge):Minnesota county distribution map
National distribution (click map to enlarge):National distribution map

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Detailed Information

Flower: Flower shape: irregular Flower shape: tubular Cluster type: panicle

[photo of flowers] Loose, pendulous, branching clusters in leaf axils scattered along the stem. Flowers are tubular, narrowly egg-shaped to somewhat heart-shaped, spongy and slightly wrinkled, white to pink, ½ to 2/3 inch long, with 2 lobes at the mouth of the tube that spread out like wings, and a pair of tiny scale-like bracts at the base. Flowers hang down on long, slender, hairless stalks.

Leaves and stems: Leaf attachment: opposite Leaf type: compound

[photo of leaves] Leaves are irregularly 2 or 3 times compound in 3s, oppositely attached, up to 5 inches long and 3 inches wide, on slender stalks. Leaflets are thin, mostly egg-shaped in outline, hairless, toothless, typically 2 or 3-lobed with a minute point at the tip of each lobe, and stalkless or on short, slender stalks. Stems are smooth and can grow to 12 feet long. First year growth is a leafy rosette with the vine bolting the second year.

Fruit: Fruit type: capsule/pod

[photo of developing fruit] The spongy flower persists and turns papery brown, with a slender, cylindric capsule inside, containing shiny, flattened, round seeds.

Notes:

Allegheny vine is infrequent to rare throughout much of its North American range. A biennial reproducing only from seed, its populations are elusive, typically few in number and rarely persisting in any location for very long, but, according to several sources, may remain in the seedbank for many years before fire or other disturbance sets it free. It prefers cool, moist shady sites, often rocky or steeply sloped. In Minnesota it has been collected fewer than a dozen times, most of them from northeast and north central forests. In 2013 it was listed as a Special Concern species by the Minnesota DNR.

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More photos

Photos courtesy John Thayer taken in Itasca County.

Comments

Have you seen this plant in Minnesota, or have any other comments about it?

Posted by: Rebecca - Saint Paul
on: 2015-07-25 15:49:21

This vine has grown as a volunteer in my Saint Paul garden for several years now. It is very prolific and takes over whatever trellis it is near. It grew next to my wisteria in 2013 and 2014, but this year (2015) another took up residence 30 feet south, by our back deck. The flowers are dull, but I encouraged it because I love the lacy foliage. It was so easy to grow I thought it was a weed! I am thrilled to know it is a Minnesota native.

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