Solidago radula


J. Acad. Nat. Sci. Philadelphia 7: 102. 1834.

Common names: Western rough goldenrod
Synonyms: Aster decemflora Kuntze Solidago decemflora A. Gray Solidago laeta Greene Solidago pendula Small Solidago radula var. laeta (Greene) Fernald Solidago radula var. rotundifolia (de Candolle) A. Gray Solidago radula var. stenolepis Fernald Solidago rotundifolia Solidago scaberrima
Treatment appears in FNA Volume 20. Treatment on page 162. Mentioned on page 159, 161.

Plants 30–90 cm; caudices, sometimes also creeping rhizomes as well. Stems usually 1–3, ascending to erect, scabrous to loosely puberulent. Leaves: basal and proximal usually withering by flowering, tapering to long-winged petioles, blades oblanceolate, 30–100 × 7–20(–30) mm, margins serrate or crenate, mid usually largest, apices acute to obtuse, acuminate, faces scabrous; mid and distal cauline subsessile (1 mm) or sessile, blades (sometimes ± shiny) elliptic to oblanceolate, 10–50 × 5–15(–25) mm, greatly reduced distally, grading into bracts, firm, bases convex-cuneate to rounded, margins finely serrate, often 3-nerved, nerves usually distinct abaxially, faces distinctly scabrous. Heads 20–260, in paniculiform arrays, narrowly to broadly secund, pyramidal, branches recurved, secund. Peduncles 0.5–2 mm; bracteoles 1–5, linear-lanceolate to ovate, minute, grading into phyllaries distally. Involucres narrowly campanulate, 3–5 mm. Phyllaries in 3–4 series, unequal, oblong, midnerves swollen distally, obtuse or acute to slightly acuminate. Ray florets 4–7; laminae 2–3.5 × 0.2–0.7 mm. Disc florets 4–6; corollas 3 mm, lobes 1 mm. Cypselae 1.5–2.5 mm, sparsely to moderately short-strigose; pappi 3 mm. 2n = 18, 36.

Phenology: Flowering Aug–Oct.
Habitat: Open rocky places, dry woods, especially calcareous soils
Elevation: 0–600 m



Ark., Ga., Ill., Kans., Ky., La., Mo., N.C., Okla., S.C., Tex.


Solidago radula is disjunct in Georgia, North Carolina, and South Carolina. J. R. Beaudry (1969) reported a diploid from Smithville, Dekalb County, Tennessee; that has not been confirmed.

Selected References


Lower Taxa

... more about "Solidago radula"
John C. Semple +  and Rachel E. Cook +
Nuttall +
Nemorales +
Western rough goldenrod +
Ark. +, Ga. +, Ill. +, Kans. +, Ky. +, La. +, Mo. +, N.C. +, Okla. +, S.C. +  and Tex. +
0–600 m +
Open rocky places, dry woods, especially calcareous soils +
Flowering Aug–Oct. +
J. Acad. Nat. Sci. Philadelphia +
Aster decemflora +, Solidago decemflora +, Solidago laeta +, Solidago pendula +, Solidago radula var. laeta +, Solidago radula var. rotundifolia +, Solidago radula var. stenolepis +, Solidago rotundifolia +  and Solidago scaberrima +
Solidago radula +
Solidago subsect. Nemorales +
species +