Flora of North America species comparison

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Solidago rugosa var. cronquistiana

Solidago rugosa var. sphagnophila
Photo is of parent taxon
Photo is of parent taxon
Herbage

sparsely hairy.

glabrous.
Ray florets

5–9.

Heads

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

in compact to lax pyramidal arrays, branches divergent and recurved arrays.
Distal

cauline leaf blades ovate, much reduced distally.

cauline leaf blades lanceolate, somewhat reduced distally.
Rays

florets 5–12.
2n

= 36.

= 18, 54.

Solidago rugosa var. cronquistiana

Solidago rugosa var. sphagnophila
Phenology Flowering Sep–Oct. Flowering Aug–Oct.
Habitat Sandy, gravelly soils, woods, roadsides at higher elevations Sandy and boggy soils, cedar woods and wet ground
Elevation 800–1800+ m (2600–5900+ ft) 0–100+ m (0–300+ ft)
Distribution
from FNA
GA; NC; TN
from FNA
CT; MA; ME; NC; NJ; NY; PA; RI; SC; VA; NS
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.)

Variety sphagnophila is a distinctive cedar-swamp race in its pure form. Intermediates with var. rugosa occur in areas of sympatry.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 20, p. 147. FNA vol. 20, p. 147.
Parent taxa Asteraceae > tribe Astereae > Solidago > sect. Solidago > subsect. Venosae > ser. Venosae > Solidago rugosa > Rugosa Asteraceae > tribe Astereae > Solidago > sect. Solidago > subsect. Venosae > ser. Venosae > Solidago rugosa
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
S. rugosa subsp. aspera, S. rugosa subsp. rugosa, S. rugosa var. aspera, S. rugosa var. celtidifolia, S. rugosa var. cronquistiana, S. rugosa var. rugosa
Synonyms S. aestivalis
Name authority Semple: Sida 20: 1612, figs. 12–18. (2003) C. Graves: Rhodora 6: 183. (1904)
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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