Gard. Dict. ed. 8., Solidago no. 19. 1768.
Plants 50–150 cm; rhizomes creeping, elongated, sparsely scaly. Stems 1–20+, erect (stout), conspicuously spreading-hirsute, at least distally. Leaves: basal and proximal cauline usually withering by flowering except on new shoots, tapering to broadly winged petioles, blades oblanceolate, 30–50 × 8–15 mm, rapidly increasing in size distally, margins shallowly serrate, scabroso-strigose, faces often more densely hairy than distal; mid to distal cauline numerous, crowded, sessile, blades lanceolate-ovate to elliptic-oblong, larger ones 35–120 × 8–35 mm, much reduced distally, bases broad and ± clasping, margins obscurely serrulate or entire, faces usually moderately hirsuto-villous on midnerves, often less so abaxially, adaxial sparsely strigose or glabrous. Heads 35–500, in paniculiform arrays, usually dense, branches recurved-secund. Peduncles 2–8 mm, sparsely to moderately strigillose; bracteoles 1–3, linear to linear-lanceolate, tending to group proximal to involucres, sometimes grading into phyllaries. Involucres narrowly campanulate, 3.5–5.5 mm. Phyllaries in 4–5 series, unequal, glabrous; outer narrowly ovatelanceolate, mid and inner linear-lanceolate. Ray-florets (2–) 4–10; laminae 1.2–2.5 × 0.2–0.5 mm. Disc-florets (2–) 4–7; corollas 4–5 mm, lobes 0.5–1 mm. Cypselae (narrowly obconic) 1.5–1.8 mm, sparsely strigillose, sometimes only apically; pappi 3–4 mm. 2n = 18.
Phenology: Flowering Aug–Oct(–Nov; year-round s).
Habitat: Mostly wetter sandy soils, seepage areas, boggy grounds, edges of marshes and thickets, open pine woodlands, roadside ditches
Elevation: 0–100 m
N.S., Ala., Del., Fla., Ga., La., Md., Miss., N.J., N.C., Pa., S.C., Va.
Solidago fistulosa grows mainly on the coastal plains. It was introduced at Stone Mountain, Georgia. Solidago pyramidata Pursh may be a synonym of S. fistulosa.