Vascular Plants of North Carolina
Account for Cronquist's Wrinkle-leaf Goldenrod - Solidago rugosa var. cronquistiana   Semple
Members of Asteraceae:
Members of Solidago with account distribution info or public map:
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DistributionMountains only. FNA says that elevations range from 800-1800 meters.

Restricted to Mountains of GA, NC, and TN.
AbundanceApparently uncommon.
HabitatSandy or gravelly soils of open montane woodlands, rocky slopes, ledges.
PhenologyFlowering and fruiting September-October.
IdentificationIn general, members of S. rugosa grow 2-4 feet tall (occasionally to 5 or 6 feet according to FNA) and have widely branching inflorescences with heads along one side of each branch. Stems often are connected via horizontal rhizomes and thus form colonies. Stems vary from densely to lightly hairy with coarse short hairs. Basal leaves are absent at flowering time; stem leaves are lance-shaped or elliptic, sessile (without stalk), the tip pointed, margins toothed, and surfaces +- wrinkled ("rugose"), the upper surface rough (scabrous). Upper stem leaves are smaller. In var. cronquistiana, the inflorescence is contracted and far less branching than in var. aspera, leaf surface is much less wrinkled, thinner textured, and less scabrous. The stem is lightly hairy (vs. densely so).
Taxonomic CommentsThis variety was named by J. Semple in 2003; see FNA for description.

Other Common Name(s)Rough-leaved Goldenrod.
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