Flora of North America species comparison

3–20 cm (caudices branching or rhizomes stout).

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

none.

1–4(–9) cm.

3-nerved, narrowly oblanceolate, 10–60(–100) × 3–12 mm, tips acute, faces gray-woolly or tomentose.

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).

linear, 5–40 mm, mid and distal flagged.

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

staminate 4.5–6 mm; pistillate 5–8 mm.

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

staminate 3–4.5 mm; pistillate 2.5–4 mm.

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

(proximally light brown, dark brown, or olivaceous) distally whitish or light brown.

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

3–9 in corymbiform arrays.

4–6 in corymbiform arrays.

1–1.6 mm, glabrous;

pappi: staminate 4–5 mm; pistillate 3.5–5 mm.

0.7–1.3 mm, glabrous or slightly papillate;

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

= 28 (under A. neodioica).

= 28 (as A. media).