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FNA | Family List | FNA Vol. 9 | Rosaceae | Aruncus

1a. Aruncus dioicus (Walter) Fernald var. dioicus

Aruncus allegheniensis Rydberg

Leaf surfaces glabrous or slightly hairy. Styles 0.3–0.8 mm. Follicles somewhat plump, 1.5–2 mm. Seeds 1.5–2 mm. 2n = 18.

Flowering early summer. Rich woods, stream banks, north-facing roadsides, seeps, ditches; 10–1500 m; Ala., Ga., Ky., Md., Miss., N.C., Ohio, Pa., S.C., Tenn., Va., W.Va.

Variety dioicus is abundant in the southern Appalachians and into the Piedmont, where it typically occurs on mesic north-facing wooded slopes and road sides.


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