Flora of North America species comparison

1, erect to arcuate or decumbent (green or purple proximally), usually much branched, glabrate to hispid and/or tomentose, sometimes sparsely setose (setae black).

1–3, erect or ascending, scapiform, branched near middles, glabrous or hispid, sometimes stipitate-glandular distally.

basal and cauline;

petiolate (bases clasping);

blades oblanceolate to ovate, often runcinate, 10–35 × 2–8 cm, margins pinnately lobed to toothed (terminal lobes relatively large), apices obtuse or acute, faces usually hirsute (hairs sometimes only on veins) or glabrous (cauline sessile, bases auriculate, clasping, margins ± toothed).

mostly basal (rosettes);

petiolate;

blades elliptic, lanceolate, linear, oblanceolate, obovate, or spatulate, 3–30 × 0.5–8 cm (bases attenuate) margins usually entire or weakly dentate, sometimes serrate, dentate, or pinnately lobed, apices rounded, faces glabrous or hispid to hispidulous (sometimes glaucous).

cylindro-campanulate (becoming turbinate or urceolate in fruit), 5–14 × 5–6 mm.

turbinate-campanulate, 7–21 × 8–12 mm.

50–70;

corollas yellow (reddish abaxially), 6–15 mm.

20–50;

corollas golden yellow, 9–18 mm.

7–16, (reflexed at maturity) lanceolate, 10–12 mm, (margins green to yellowish), apices obtuse or acute (ciliate), abaxial faces tomentose and often stipitate-glandular, adaxial with fine, appressed hairs.

10–16, lanceolate or oblong, 8–10 mm, (bases keeled and thickened, margins scarious) apices usually acute, sometimes attenuate or obtuse (often ciliate-tufted), abaxial faces glabrous or tomentulose, sometimes stipitate-glandular, adaxial glabrous.

of 5–12, ovate to linear-lanceolate, glabrous bractlets 3–4 mm (reflexed in fruit, scarious).

of 5–12, narrowly triangular, glabrous or tomentulose bractlets 1–3 mm.

10–20, in lax, corymbiform arrays.

(1–)3–15(–30), borne singly or in ± corymbiform arrays.

(monomorphic or dimorphic) pale brown or yellowish, fusiform, 4–9 mm, outer wider with apices attenuate (not beaked), inner gradually tapered, beaked (beaks 2–5 mm, ± equal to bodies), ribs 10 (narrow);

pappi white (fine, soft), 3–6 mm.

dark to golden reddish or yellowish brown, fusiform, 3.5–8 mm, tapered distally or beaked, ribs 10–13 (strong);

pappi white, 4–9 mm.

= 8, 16.