Flora of North America species comparison

erect or sprawling, branched distally, glabrous.

erect, branched proximally, glabrous proximally, ± hairy distally.

linear, 30–100 × 2–4(-6+) mm, (bases often connate and sheathing, apices blunt) margins entire, faces glabrous.

linear, 10–60 × 1–2+ mm (simple blades or single lobes), margins entire or with 1–3 pairs of linear lobes, faces glabrous or sparsely hairy.

hemispheric or campanulate, 5–7 mm.

hemispheric or obconic, 4–7.5 mm.

conic, papillate, glabrous.

dome-shaped, muricate, hairy.

6–13; (corollas pale yellow) laminae ovate-elliptic, (0–)0.5–2 mm.

6–13;

laminae oblong to oval, 5–7 mm.

5–10, ± lanceolate, hairy.

8–16 (distinct), ovate, hairy.

grayish, somewhat flattened, ± linear, to 4 mm, hairy;

pappi of 5–10 subulate to lanceolate, often fimbriate, laciniate, or aristate scales.

black or gray, clavate, to 1.5 mm, usually scabrous, rarely glabrous;

pappi usually of (3–)4(–5) subulate, aristate scales plus 3–5+ shorter, ± subulate scales or teeth, rarely of aristate scales only, or 0.

appendages oblong or obovate.

appendages linear to narrowly ovate.

= 10.

= 12.