Flora of North America species comparison

decumbent to erect.

erect.

mostly alternate (sometimes opposite at 1–3 proximal nodes);

blades usually lobed, 12–28 mm overall, lobes 7–15, linear to filiform, pliable (blades mostly not lobed in var. wrightii).

all or mostly alternate;

blades not lobed, linear to filiform, 10–15 × 0.3–1 mm, margins usually entire, sometimes 3-fid distally.

30–80 mm, glabrous or hirtellous.

10–30 mm, tomentose.

obconic, 5–7 mm.

campanulate, 5–7 mm.

10–21;

corollas yellow-orange, laminae 4–10 × 1.5–3 mm.

12–13;

corollas golden yellow, laminae 6–8 × 3–4 mm.

50–100+;

corollas yellow, 2.5–4.5 mm (peripheral ± zygomorphic in some plants).

ca. 30;

corollas yellow, 4.5–5 mm.

12–22, margins of outer distinct less than 1/5 their lengths, abaxial faces glabrous or sparsely hirtellous.

12–13, margins of outer distinct less than 1/4 their lengths, abaxial faces tomentose.

of 3–8 deltate to subulate bractlets, lengths less than 1/2 phyllaries.

of 3–4 linear bractlets, lengths 1/2+ phyllaries.

2–3.5 mm;

pappi of erose and/or aristate scales 0.7–3.5 mm.

3–4 mm;

pappi of 10–11 subequal scales 4–5 mm (each 3–5-aristate).

= 16.