Flora of North America species comparison

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

1 or 3–4+, clustered, sparsely tomentose to glabrescent.

(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.

(and proximal cauline, relatively thick and turgid) petiolate;

blades narrowly elliptic or lanceolate to oblanceolate, 40–70+ × 5–20+ mm, bases tapering, margins entire or subentire to weakly and irregularly dentate (especially at apices).

gradually reduced (weakly clasping, similar to basal).

gradually reduced (distal sessile, bractlike).

bracteate, glabrous or bases tomentose.

bracteate (bractlets usually red-tipped), sparsely tomentose to glabrate.

(8–)13;

corolla laminae 7–9 mm.

5 or 8;

corolla laminae 12–16 mm.

35–50+;

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

50–60+;

corolla tubes 3.5–4.5 mm, limbs 4.5–5.5 mm.

(13–)21, green, 5–7 mm, glabrous.

13 or 21, dark green proximally, becoming light green distally (tips red), 7–11+ mm, floccose-tomentose proximally.

conspicuous (bractlets 2.5–4 mm).

conspicuous (bractlets red-tipped).

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

5–12+ in open, cymiform arrays.

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

pappi 3–4 mm.

2.5–3.5 mm, glabrous;

pappi 7–8 mm.

= 46.

= 92.