Flora of North America species comparison

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

6–15 cm.

none.

1–10 cm.

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

1-nerved, spatulate, 18–45 × 2–4 mm, tips mucronate, faces ± gray-tomentose.

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

linear, 8–13 mm, not flagged (apices acuminate).

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

staminate 4–5.3 mm; pistillate 4–5 mm.

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

staminate 2–3.2 mm; pistillate 2.5–3.5 mm.

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

(bases each with distinct dark brown or blackish spot) distally white or light brown.

3–9 in corymbiform arrays.

3–7 in corymbiform arrays.

1–1.6 mm, glabrous;

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

0.5–1 mm, slightly papillate;

pappi: staminate 2.5–3.5 mm; pistillate 3.5–4.5 mm.

= 28 (under A. neodioica).

= 28.