Flora of North America species comparison

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

1–4 cm.

none.

0.5–2 cm.

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

1-nerved, spatulate, rhombic-spatulate, or cuneate, 4–13 × 2–8 mm, tips mucronate, faces densely gray-tomentose.

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

linear, 4–10 mm, distalmost flagged.

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

staminate unknown; pistillate 8–11 mm.

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

staminate unknown; pistillate 4–5.5 mm.

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

distally white, light brown, dark brown, or olivaceous.

3–9 in corymbiform arrays.

usually borne singly, rarely 2–3 in corymbiform arrays.

1–1.6 mm, glabrous;

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

1.5–1.8 mm, glabrous;

pappi: staminate unknown; pistillate 5–6 mm.

= 28 (under A. neodioica).

= ca. 168.