Flora of North America species comparison

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Solidago rugosa var. cronquistiana

Solidago sect. Solidago
Photo is of parent taxon
Herbage

sparsely hairy.

Leaves

basal (rosettes) usually withering by flowering;

petiole bases or vasculature not persisting on rhizomes;

proximalmost cauline petiolate, sometimes present at flowering;

proximal and distal sometimes 3-nerved.
Ray florets

5–9.

Phyllaries

1-nerved, usually not striate (3–5-nerved and striate in S. glomerata, S. lancifolia, S. roanensis) sometimes minutely stipitate-glandular, sometimes resinous.
Heads

in narrow (wand-shaped) arrays, proximal branches not greatly exceeding subtending leaves.

in ± paniculiform or thyrsiform arrays (wand-, club-, or secund cone-shaped) or in axillary clusters, sometimes in rounded corymbiform arrays.
Distal

cauline leaf blades ovate, much reduced distally.

Pappus

bristles in 2–3 series (shorter, outer setiform scales rarely present, outer, longer bristles apically attenuate, inner bristles longest, weakly to strongly clavate).
2n

= 36.

Solidago rugosa var. cronquistiana

Solidago sect. Solidago
Phenology Flowering Sep–Oct.
Habitat Sandy, gravelly soils, woods, roadsides at higher elevations
Elevation 800–1800+ m (2600–5900+ ft)
Distribution
from FNA
GA; NC; TN
North America; South America; temperate Eurasia [Introduced in tropical Asia]
Discussion

Variety cronquistiana is known only at the tetraploid level and occurs at mid to high elevations in the southern Appalachian Mountains. The elongate, narrow, leafy arrays can be wand-shaped with the branches much shorter than the subtending leaves.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Species ca. 95 (71 in the flora).

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 20, p. 147. FNA vol. 20, p. 110.
Parent taxa Asteraceae > tribe Astereae > Solidago > sect. Solidago > subsect. Venosae > ser. Venosae > Solidago rugosa > Rugosa Asteraceae > tribe Astereae > Solidago
Sibling taxa
S. rugosa subsp. aspera, S. rugosa subsp. rugosa, S. rugosa var. aspera, S. rugosa var. celtidifolia, S. rugosa var. rugosa, S. rugosa var. sphagnophila
Subordinate taxa
Name authority Semple: Sida 20: 1612, figs. 12–18. (2003) unknown
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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