Flora of North America species comparison

mostly 1–12;

branches mainly proximal.

mostly 1–3;

branches mainly distal.

basal (withering) and ± cauline, 1–7(–10) cm;

largest blades linear and terete or ± elliptic and plane, ± succulent, 0–1-pinnately lobed;

lobes 1–2(–5) pairs, remote, ± terete.

basal (withering) and cauline, 2–5 cm;

largest blades ± elliptic, ± plane to 3-dimensional, not succulent, 1–2-pinnately lobed;

primary lobes mostly 3–8 pairs, ± remote, ultimate lobes ± plane to involute.

2–8(–10) cm, distally usually ± stipitate-glandular and, sometimes, ± arachnoid (at least early, often glabrescent by fruit).

1–6 cm, distally stipitate-glandular and, sometimes, ± arachnoid to villous.

± hemispheric to obconic (bases pale and ± truncate in fruit).

± hemispheric to campanulate.

corollas white to pinkish, 5–8 mm (inner);

peripheral corollas spreading, zygomorphic, enlarged.

corollas bright yellow, 4–6.5 mm;

peripheral corollas ± erect, actinomorphic, scarcely enlarged.

longest 8–10(–12) mm;

outer usually glabrescent in fruit, apices erect, acute, ± rigid.

longest 6–9 mm;

outer predominantly stipitate-glandular and, sometimes, ± arachnoid to villous in fruit, apices ± erect, acute, rigid.

(± radiant) mostly 1–5 per stem.

mostly 3–9 per stem.

(3–)6–8 mm;

pappi of (1–)4(–5) scales in 1 series, longest scales 6–8.5 mm, lengths 1–1.3 times corollas (apices visible among corollas at flowering).

3.5–6 mm (compressed);

pappi 0 or coroniform (of ± 10 scales, longest 0.1–0.5 mm).

= 10.

= 12.