Solidago ohioensis Riddell

Solidago ohioensis is most likely to be confused with S. riddellii, which has folded and multinerved leaves, and S. houghtonii, which has arrays with few large heads. Solidago ohioensis is found in the southwestern Great Lakes area and the flatlands region to the southwest. Hybrids between S. ohioensis and S. ptarmicoides occasionally occur where the two parents are sympatric. Those hybrids were described as S. ×krotkovii B. Boivin [Oligoneuron ×krotkovii (B. Boivin) G. L. Nesom] and can be similar to S. houghtonii.

Plants 40–100 cm; caudices densely rooting, branching; vascular bundles and petiole bases marcescent (attached to old stems for more than a season). Stems 1–10+, erect, slender to stout (tall shoots), glabrous. Leaves: basal often persistent, also present as new rosettes at flowering, tapering to winged petioles to 250 mm, blades narrowly ovate to lanceolate, 50–150 × 15–45 mm, apices obtuse to acute, faces glabrous; proximal cauline similar, reduced distally (petioles becoming less developed); distal sessile, blades prominently 1-nerved, ovate to lanceolate, 75–100 × 8–12 mm, much reduced distally, margins entire, flat, apices acute. Heads 10–500+ in corymbiform arrays, branches glabrous. Peduncles 6.3–8.5 mm, glabrous; bracteoles 3, linear to lanceolate, sometimes grading into phyllaries. Involucres campanulate, 4–5 mm. Phyllaries (14–18) in 3–4 series, broadly linear to ovate, unequal, obtuse, obscurely striate. Ray florets 6–8; laminae 4.6–5 × 0.5–0.7 mm. Disc florets 8–20; corollas 4–4.5 mm, lobes 0.6–1 mm. Cypselae (obconic) 1.6–2.2 mm, glabrous; pappi 2.5–3 mm (apically clavate). 2n = 18.

Aster ohioensis (Riddell) Kuntze; Oligoneuron ohioense (Riddell) G. N. Jones

Solidago ohioensis is a North American plant species in the family Asteraceae, called the Ohio goldenrod. It is found primarily in the Great Lakes region of Canada and the United States, in Ontario, New York, Ohio, Michigan, Wisconsin, Indiana, and Illinois.

Solidago ohioensis is a perennial herb up to 100 cm (39 inches) tall. The leaves are narrow, up to 25 cm (10 inches) long. One plant can produce as many as 500 small yellow flower heads in a compact branching array at the top of the plant. The plant grows in marshes, on sand dunes, and along the banks of rivers.

Solidago ohioensis là một loài thực vật có hoa trong họ Cúc. Loài này được Riddell miêu tả khoa học đầu tiên năm 1835.