Flora of North America species comparison

not fleshy, not clustered.

erect or decumbent, branched proximally or distally, ± hairy.

usually erect, sometimes decumbent (especially in coastal forms), usually branched distally, sometimes proximally, ± hairy, usually more so distally.

linear to oblanceolate or oblong, 8–210 × 1–5.5(–15) mm, (± fleshy in coastal forms) margins entire or with 3–5+ teeth, faces glabrous or ± hairy.

mostly cauline;

blades linear to oblanceolate, 8–40(–70) × 1–6 mm, ± fleshy in coastal forms, margins entire or with 3–5+ teeth (coastal forms), faces ± hairy.

campanulate to depressed-hemispheric or hemispheric, 5–14 mm.

campanulate or hemispheric, 5–10 mm.

conic, muricate, glabrous.

6–16;

laminae linear to oblong, 5–18 mm.

6–13;

laminae oblong, 5–10 mm.

(persistent or falling with cypselae) 4–16 (in 1–2 series), elliptic to ovate or lanceolate to oblong, hairy.

persistent or falling with cypselae, 4–13 in 1 series, ovate-lanceolate to oblong.

black to gray or silver-gray, linear to narrowly clavate, to 4 mm, glabrous or hairy;

pappi 0, or of 1–7 translucent (rarely opaque), brown (rarely white), linear to subulate, aristate scales.

black to gray, ± clavate, to 3 mm, glabrous or hairy;

pappi usually of 1–7 translucent (rarely opaque), brown (rarely white), linear to subulate, aristate scales (rarely variable or 0 within heads).

appendages deltate to sublanceolate.

appendages deltate.

= 16, 32, 48.