Flora of North America species comparison

erect to ascending or decumbent, green, glaucous, much branched from bases and distally, strongly striate, glabrous (often bearing round galls).

erect, green, stout, branched from bases and distally, weakly striate, glabrous.

(basal not in rosettes, absent at flowering);

proximal blades linear, 5–30(–60) × 1–2(–4) mm, margins entire, apices acute, faces glabrous;

cauline reduced to subulate scales.

(basal forming rosettes, sometimes withering before flowering) proximal blades linear, 100–200 × 1–8 mm, margins of usually pinnately laciniately lobed, lobes remote and narrow, 1–15 mm;

cauline similar, 5–10 mm, reduced to scales distally.

cylindric, 10–16 × 4–6 mm, apices spreading.

cylindric, 18–25 mm × 5–8 mm, apices narrow.

usually 5;

corollas usually light pink to lavender, rarely white, 18–20 mm, ligules 3–4 mm wide.

8–12;

corollas usually pink, purple, or lavender, rarely white, 35–40 mm, ligules 5–6 mm wide.

5(–7), linear, 10–15 mm, margins scarious, apices acute or obtuse, not appendaged, faces glabrous.

8–10, linear, 18–26 mm, margins scarious, apices appendaged, faces glabrous or tomentulose.

of 8, ovate to linear bractlets 2–4 mm, margins erose-ciliate (faces glabrous).

of 8–10, ovate bractlets 1–3 mm, margins ciliate-tomentulose.

(1–50+) borne singly or in corymbiform arrays.

borne singly.

6–10 mm, weakly striate, glabrous;

pappi 6–9 mm.

11–17 mm, faces smooth, adaxial not sulcate, glabrous;

pappi 10–15 mm.

= 18.

= 18.