Solidago drummondii Torr. & A. Gray

A. Cronquist (1980) listed Solidago drummondii as reputedly in Louisiana; K. N. Gandhi and R. D. Thomas (1989) did not see any specimen from that state.

Plants 30–100 cm; caudices stout, branched, rhizomes thick. Stems usually 1, ascending to erect, uniformly short villoso-strigose, occasionally glabrate proximally. Leaves: basal and proximal cauline short-petiolate, blades broadly ovate or elliptic-ovate, margins serrate, ± 3-nerved and pinnately nerved, abaxial faces (at least) evenly short villoso-strigose; mid and distal cauline like proximal, 20–70 × 10–40 mm (1.3–2 times as long as wide), usually only those near arrays reduced and 1-nerved. Heads 30–200+, apparently sometimes drooping, in open leafy, secund pyramidal, paniculiform arrays, branches recurved, leafy-bracteate, secund, proximalmost branch sometimes separated by several nodes from next. Peduncles 1–6 mm; bracteoles ovate, minute, grading into phyllaries. Involucres campanulate, 3–4.5 mm. Phyllaries in 3 series, strongly unequal, obtuse or rounded; mid broadly oblong, inner narrowly so. Ray florets 3–7; laminae 1.5–2 × 0.5–1 mm. Disc florets 4–7; corollas (abruptly ampliate) 3–3.5 mm, lobes ca. 1 mm. Cypselae 1.5–2 mm (4–8 translucent ribs), moderately short-strigose; pappi 2–2.5 mm. 2n = 18.

Aster torreyi Kuntze

Solidago drummondii, commonly called Drummond's goldenrod, is a North American species of flowering plants in the family Asteraceae. It is native to the middle Mississippi Valley of the Central United States, primarily in Missouri and Arkansas but with additional populations in Louisiana and Illinois.

Solidago drummondii is a perennial herb up to 100 cm (40 inches) tall, with an underground caudex and rhizomes. One plant can produce 200 or more small yellow flower heads in a large branching (sometimes drooping) array at the top of the plant.