Flora of North America species comparison

(1–)3–12 cm (stems usually stipitate-glandular).

18–40 cm.

1–4(–9) cm.

none.

1-nerved, spatulate to linear-cuneate, 6–12 × 1.5–4.5 mm, tips mucronate, faces glabrescent-scabrous to gray-pubescent (often with purple glandular hairs).

1–3-nerved, oblanceolate to elliptic, 20–50 × 4–15 mm, tips acute, faces ± gray-tomentose.

linear, 3–11(–13) mm, usually not flagged (apices acute to acuminate), rarely distal flagged.

lanceolate, 15–45 mm, not flagged.

staminate 4–5 mm; pistillate 3.5–4.5 mm.

staminate 4–5 mm; pistillate 4–5 mm.

staminate 1.9–2.8 mm; pistillate 2–3 mm.

staminate 2.5–3.5 mm; pistillate 3–4 mm.

(relatively wide) distally dark brown-black (sometimes light brown or whitish at very tips; apices blunt).

(relatively broad) distally silvery white.

4–6 in corymbiform arrays.

10–75 in paniculiform arrays.

0.7–1.3 mm, glabrous or slightly papillate;

pappi: staminate 2.5–3.5 mm; pistillate 2.5–3.5 mm.

1–1.5 mm, glandular;

pappi: staminate 4–5 mm; pistillate 3–4 mm.

= 28 (as A. media).

= 28.