Flora of North America species comparison

1–3+, erect, unarmed, pannose but for glabrescent streaks.

1–5+, erect (wandlike), unarmed, evenly pannose.

primaries linear-subulate, ascending to appressed, 5–20 (× 1+) mm, sparsely floccose, sometimes glabrate;

secondaries linear-filiform to clavate, 3–15 mm, glabrous.

primaries lance-linear, stiff, pungent, not spinose, 20–60 (× 2–5) mm, tomentose;

secondaries (seldom present) spatulate, 8–15 mm, tomentose.

3–15 mm.

3–8 mm.

turbinate, 7–10 mm.

hemispheric, 8 mm.

4;

corollas cream to yellow, 9–10 mm.

5–9;

corollas yellow to brownish, 8–9 mm.

4, lanceolate to obovate.

5–6, oblanceolate.

3–7.

3–6.

2.5–3.5 mm, hirsute;

pappi of 100–130 bristles 6–8 mm.

ca. 4 mm, copiously pilose (hairs 6–10 mm);

pappi 0.

= 60, 62, 120, 180.

= 60.