Flora of North America species comparison

1–6, ascending or erect, simple or branched proximally and distally, glaucous or glabrous.

1 (scapiform), erect or arcuate-ascending, mostly glabrous (shaggily piloso-hirsute proximally and at bases of heads).

proximal linear to obovate, sometimes pinnately lobed, not fleshy, ultimate margins entire or dentate, faces glabrous;

distal reduced (ovate to lanceolate, rarely pinnately lobed, bases clasping).

proximal oblanceolate to linear, pinnately lobed (lobes usually linear to filiform, sometimes broader), not fleshy, ultimate margins entire or dentate, faces usually shaggily piloso-hirsute (at least proximally), glabrescent;

distal usually 0.

hemispheric, 10–22+ × 6–22+ mm.

(8–)10–15 × 5–6 mm.

densely bristly.

sparsely bristly or glabrous.

85–257;

corollas usually pale yellow, sometimes white, 8–12 mm;

outer ligules exserted 2–5 mm.

40–250;

corollas usually yellow to pale yellow (often with abaxial reddish stripes), sometimes white, 16–20 mm;

outer ligules exserted 11–13 mm.

(25–)40–60+ in 4–6+ series, (midstripes usually reddish or purple) orbiculate to ovate, oblong, lance-oblong, or linear, unequal, hyaline margins 1–2.5 mm wide, faces glabrous.

usually 20–26+ in 2-3+ series, (midstripes often reddish) lanceolate to lance-linear or subulate, unequal, hyaline margins 0.1–0.5 mm wide, abaxial faces (of outermost, at least) shaggily piloso-hirsute to arachnose (at least proximally).

0.

of 12–20, lanceolate to linear bractlets, hyaline margins 0.05–0.2 mm, abaxial faces shaggily piloso-hirsute to arachnose.

± prismatic, 1.6–3.2 mm, ribs extending beyond apices, 5 more prominent than others;

persistent pappi of 20–25+, blunt teeth plus 2–6 bristles.

± prismatic, 2–3.4 mm, ribs extending to apices, 5 more prominent than others;

persistent pappi of 12–15+, irregular, lance-deltate teeth plus (1–)2 bristles.

70–100% 3-porate.

70–100% 3-porate.

= 14.

= 14.