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, glabrous or glabrate.

(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.

(relatively thick and turgid) petiolate;

blades elliptic-ovate, ovate, or subreniform, 20–40+ × 10–30+ mm, bases tapering to subcordate, margins dentate to crenate (proximal cauline leaves petiolate; margins dissected to pinnatifid).

gradually reduced (weakly clasping, similar to basal).

gradually reduced (sessile, subentire).

bracteate, glabrous or bases tomentose.

bracteate (bractlets cyanic or reddish), glabrous or sparsely tomentose distally.

(8–)13;

corolla laminae 7–9 mm.

0 or 8–13;

corolla laminae (deep orange-yellow) 5–7 mm.

35–50+;

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

60–80+;

corolla tubes 1.5–2.5 mm, limbs 2.5–3.5 mm.

(13–)21, green, 5–7 mm, glabrous.

13 or 21, deep red or green (then tips deep red to purple), 7–10 mm, glabrous.

conspicuous (bractlets 2.5–4 mm).

conspicuous (bractlets deep red or at least apices deep red to purple).

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

1–6+ in open to compact, subumbelliform arrays.

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

pappi 3–4 mm.

1–1.5 mm, glabrous;

pappi 3–4.5 mm.

= 46.

= 46, 130+.