Flora of North America species comparison

usually strictly erect.

± decumbent-ascending to erect.

mostly 10–25(–40) mm;

blades linear or lobed (lobes 3–7+, linear to filiform), faces scaberulous (hairs ± conic, 0.1 mm) and gland-dotted.

mostly 1–3 cm;

blades linear or lobed (lobes 3–7+, linear to filiform), faces puberulent and gland-dotted.

mostly (3–)8–25(–30+) mm.

mostly 5–25 mm.

obconic or obpyramidal, 4–6+ mm (each often subtended by 1–3, lanceolate bractlets).

± obconic, 5–6 mm.

usually 1(–2), sometimes 0;

corollas yellow to white, laminae 0.8–1.2+ mm.

0.

2–6(–8+);

corollas yellow (sometimes with purple), 1.5–2 mm.

15–30+;

corollas yellowish, 1–2 mm.

4–6, green to purple, weakly carinate, oblanceolate to obovate, gland-dotted, otherwise usually glabrous.

7–10+, green to purple, weakly carinate, oblanceolate to obovate, ± hirsutulous and gland-dotted.

blackish to buff, 3–4 mm, hirsutulous to villous, especially on angles;

pappi of 8 white to tawny or purplish, obovate-rounded or elliptic to lanceolate scales 1–2.5 mm (sometimes some or all ± aristate).

blackish to buff, 3 mm, hispidulous to villous, especially on angles and/or at bases;

pappi of 8 white to tawny or purplish, obovate-rounded or oblanceolate to ± quadrate, apically truncate or acute scales 1–2 mm.

= 20, 22, 40.

= 22.