Flora of North America species comparison

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

1 (sometimes from rosettes, rosettes sometimes clustered), tomentose.

(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.

petiolate;

blades broadly lanceolate to elliptic or spatulate, 20–40+ × 10–20+ mm, bases tapering, margins entire or subentire to dentate distally (faces tomentose).

gradually reduced (weakly clasping, similar to basal).

abruptly reduced (petiolate or sessile; narrowly lanceolate to sublyrate, sharply toothed to pinnatisect or entire).

bracteate, glabrous or bases tomentose.

bracteate, densely lanate to sparsely tomentose.

(8–)13;

corolla laminae 7–9 mm.

8–10(–13);

corolla laminae 5–10 mm.

35–50+;

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

25–35+;

corolla tubes 3–4 mm, limbs 1.5–2 mm.

(13–)21, green, 5–7 mm, glabrous.

13 or 21, green, 5–7 mm, densely tomentose (apices scarious).

conspicuous (bractlets 2.5–4 mm).

inconspicuous.

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

6–12+ in corymbiform arrays (lateral cymiform arrays sometimes originating in leaf axils).

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

pappi 3–4 mm.

1–1.5 mm, hirtellous on ribs;

pappi 4–5 mm.

= 46.

= 46.