Show Lower Taxa
Solidago subsect. Nemorales
Phytologia 75: 8. 1993.
Basionym: Nemorales Mackenzie
Synonyms: Incanae RydbergRadulae Rydberg
Revision as of 00:37, 27 July 2019 by FNA>Volume Importer
Stems and leaves usually moderately to densely strigoso-canescent. Leaves: basal often present in rosettes at flowering, proximalmost cauline petiolate to subpetiolate, sometimes present at flowering, largest sometimes with two prominent lateral nerves (3-nerved). Heads in variously thyrsiform-paniculiform, open to usually congested, cone-shaped, ± secund (to reflexed in S. nemoralis) arrays, proximal branches arching, secund; phyllaries 1-nerved, not stipitate-glandular, not striate. Pappus bristles usually in 2 series (inner usually weakly to moderately clavate).
Distribution
North America, Mexico.
Discussion
Species 6 (5 in the flora).
Selected References
None.
Key
1 | Heads secund, in rounded, secund, pseudo-corymbiform paniculiform arrays; oftenalkaline meadows and flats, Montana and Idaho s to New Mexico and Arizona | Solidago nana |
1 | Heads usually in narrowly to broadly pyramidal, paniculiform arrays, branches secund | > 2 |
2 | Plants with short-branched caudices; arrays secund to apically recurved; prairies and open ground in e deciduous forests | Solidago nemoralis |
2 | Plants creeping-rhizomatous; heads in thyrsiform to secund-pyramidal, paniculiform arrays | > 3 |
3 | Leaves finely scabrous, not or weakly 3-nerved; e United States | Solidago radula |
3 | Leaves coarsely scabrous, hispid or soft-canescent, sometimes strongly 3-nerved; prairies and w United States | > 4 |
4 | Heads in paniculiform arrays, usually compact, branches broadly thyrsiform to somewhat secund pyramidal, proximal branches reflexed-recurved distally,basal leaves withering by flowering; prairies of Great Plains | Solidago mollis |
4 | Heads in cone-shaped arrays with branches narrowly secund, or open, lax, pyramidal; basal leaves often present at flowering; from near sea to mid montane elevations, Wyoming to s Oregon, s to central Mexico | Solidago velutina |