Show Lower Taxa
Solidago subsect. Humiles
Sida 20: 1606. 2003.
Basionym: Humiles Rydberg Fl. Rocky Mts., 868. 1917
Leaves: basal sometimes present (in rosettes) at flowering, proximalmost cauline petiolate, often present at flowering, largest, not 3-nerved. Heads in wand-shaped racemiform, paniculiform, or thyrsiform arrays, not secund. Phyllaries not striate, resinous (minute glands present). Pappus bristles usually in 2, rarely in 3 series, (shorter, outer setiform scales rarely present, inner bristles weakly to strongly clavate).
Distribution
North America, Mexico.
Discussion
Species 5 (5 in the flora).
Selected References
None.
Lower Taxa
Key
1 | Leaves (and arrays) copiously viscid | > 2 |
1 | Leaves (and peduncles and phyllaries) slightly resinous | > 3 |
2 | Stems 10–40(–50) cm; basal leaves spatulate, 40–120 mm; dunes and headlands, California, Oregon | Solidago spathulata |
2 | Stems 65–110 cm; basal leaves oblanceolate, mostly 100–200 mm; sand hills, Georgia, South Carolina | Solidago kralii |
3 | Involucres 8–12 mm (along streams, Alabama, Tennessee) | Solidago arenicola |
3 | Involucres 3–7 mm | > 4 |
4 | Rays 7–16; plants usually 10–50 cm (to 120 cm in var. gillmanii, dunes, s Lake Michigan, Lake Huron); basal leaves lanceolate, broadly to narrowly oblanceolate, obovate | Solidago simplex |
4 | Rays 3–6; plants 40–120 cm; basal leaves linear-oblanceolate (Yadkin River, NorthCarolina) | Solidago plumosa |