Flora of North America species comparison

1 (striated, frequently hollow, often pink- to purple-tinged), glabrous or leaf axils sparsely tomentose.

1 or 2–3, clustered, bases floccose-tomentose, leaf axils tomentose, glabrous elsewhere.

(and proximal cauline) obscurely petiolate;

blades obovate to oblanceolate, sometimes lyrate (lateral lobes to 5 pairs, terminal lobes larger than laterals), 50–150+ × 10–30+ mm, bases tapering, ultimate margins crenate to irregularly undulate.

(thick, fleshy) petiolate;

blades usually ovate, oblong, or spatulate, sometimes sublyrate, 20–50+ × 20–40+ mm, bases tapering (to winged petioles) or abruptly contracted to subcordate (petioles narrow), margins crenate, coarsely serrate, or subentire.

gradually reduced (weakly clasping, similar to basal).

(often cyanic) gradually reduced (sessile, not clasping; lanceolate to linear, usually irregularly and shallowly lobed, rarely entire).

bracteate, glabrous or bases tomentose.

conspicuously bracteate, glabrous.

(8–)13;

corolla laminae 7–9 mm.

10–12;

corolla laminae 8–14+ mm.

35–50+;

corolla tubes 2.5–3.5 mm, limbs 2–3 mm.

55–75+;

corolla tubes 2.5–3.5 mm, limbs 3–4 mm.

(13–)21, green, 5–7 mm, glabrous.

21, deep red or green (tips reddish), 8–12+ mm, white-tomentose proximally.

conspicuous (bractlets 2.5–4 mm).

conspicuous (tips of bractlets often purple).

8–30+ in umbelliform or cymiform arrays (robust plants with multiple arrays).

1–2(–5+).

1–1.5 mm, sparsely hirtellous on ribs or glabrous;

pappi 3–4 mm.

1–1.25 mm, glabrous;

pappi 4–7 mm.

= 46.

= 160+.