Gillman’s or dune goldenrod

Solidago humilis Pursh var. gillmanii A. Gray, Proc. Amer. Acad. Arts 17: 191. 1882 (as gillmani); S. deamii Fernald; S. gillmanii (A. Gray) E. S. Steele; S. glutinosa Nuttall var. gillmanii (A. Gray) Cronquist; S. purshii Porter var. gillmanii (A. Gray) Farwell; S. racemosa Greene var. gillmanii (A. Gray) Fernald; S. spathulata de Candolle var. gillmanii (A. Gray) Cronquist ex Gleason; S. virgaurea var. gillmanii (A. Gray) Porter

Plants (20–)38–73(–84) cm (robust). Leaves: basal spatulate to obovate, margins dentate, sometimes crenate, acute; cauline (7–)15–37(–47), proximal cauline (spatulate to obovate) (36–)68–124(–147) × (6–)7.5–24(–42) mm, margins often sharply serrate; mid to distal 8–44(–95) × 1.1–9.4(–28) mm. Heads in paniculiform arrays. Peduncles: bracteoles 1–5. Phyllaries: shortest (1.2–)1.6–2.4(–2.9) mm. Cypselae sparsely strigose. 2n = 36.

Flowering Aug–Sep. Sand dunes, sometimes sandy beaches; of conservation concern; 100–300 m; Ont.; Ind., Mich., Wis.

Variety gillmanii is found in the Lake Michigan and northern Lake Huron areas.