Solidago subsect. Argutae
Phytologia 75: 9. 1993.
Basionym: Argutae Mackenzie in J. K. Small, Man. S.E. Fl., 1345, 1347. 1933
Synonyms: Solidago sect. Secundiflorae Vernae Mackenzie
Revision as of 20:01, 5 November 2020 by imported>Volume Importer
Leaves: basal sometimes present (rosettes) at flowering, proximalmost cauline petiolate, often present at flowering, largest, not 3-nerved. Heads secund in open, secund, cone-shaped arrays, lowest branches often elongate and repeating pattern, not stipitate-glandular. Phyllaries not striate, eglandular. Pappus bristles usually in 2 series (inner usually moderately clavate).
Distribution
e North America.
Discussion
Species 9 (9 in the flora).
Selected References
None.
Lower Taxa
Key
1 | Leaves minutely scabrous, puberulent or short-villous | > 2 |
1 | Leaves glabrous or nearly so | > 4 |
2 | Leaves scabrous on abaxial faces (hairs short with swollen bases); bogs and swamps | Solidago patula |
2 | Leaves soft-villous or puberulent | > 3 |
3 | Rays usually 7–12; leaves moderately to densely short-villous; spring blooming; coastal plain of North Carolina, South Carolina | Solidago verna |
3 | Rays 0–(1–2); leaves densely and finely puberulent; fall blooming; open woods, coastal plain and piedmont; North Carolina to Alabama (possibly Mississippi) | Solidago brachyphylla |
4 | Phyllaries striate, several nerves enlarged; involucres 4.5–6(–7) mm; Kentucky, West Virginia | Solidago faucibus |
4 | Phyllaries not striate, only main nerve enlarged (very rarely more striate in S. arguta); involucres 2.5–5.6 mm | > 5 |
5 | Plants without slender stoloniferous rhizomes | Solidago arguta |
5 | Plants with slender stoloniferous rhizomes in addition to main, deeper rhizomes or caudices | > 6 |
6 | Proximal leaves elliptic to obovate (ovate), acute or obtuse, with narrowly attenuate bases; distal cauline leaves quickly reduced, ascending to appressed | Solidago ludoviciana |
6 | Proximal leaves mostly ovate, acute to acuminate, with truncate to obtuse bases; distal cauline leaves gradually reduced, rarely appressed | Solidago tarda |