Flora of North America species comparison

1, irregularly lanate or tomentose.

1 or 2–6+, clustered (bases cyanic), glabrous or leaf axils sparsely tomentose.

(and proximal cauline) petiolate;

blades orbiculate, ovate, oblanceolate, or rhombic, 20–50+ × 20–40+ mm, bases tapering, sometimes obtuse, margins coarsely dentate to crenate-dentate.

(and proximal cauline) petiolate;

blades oblanceolate to spatulate (usually pinnately lobed, lateral lobes 1–6+ pairs, their bases petioluliform, terminal lobes usually larger than laterals, often reniform to ± orbiculate, midribs sometimes ± winged and/or toothed between the primary lobes), 40–120+ × 10–30+ mm, bases ± cuneate, ultimate margins subentire or irregularly crenate, dentate, or lobed.

gradually to abruptly reduced (petioles broad-winged, clasping, blades obovate, bases tapering, margins irregularly dentate; distal sessile, linear to lanceolate, entire).

gradually reduced (± petiolate or sessile, clasping; often auriculate, pinnately dissected to pinnately lobed).

bracteate, lanate or tomentose distally.

bracteate, glabrous.

8–10(–13);

corolla laminae (red-orange) 8–15+ mm.

8 or 13;

corolla laminae 3–7 mm.

35–65+;

corolla tubes 4–5 mm, limbs 5–6 mm.

30–45(–100+);

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

21, green (tips sometimes deep red), 8–10+ mm, densely tomentose proximally, sparsely tomentose distally.

13 or 21, green (tips sometimes reddish), 3–7 mm, glabrous.

conspicuous.

inconspicuous or 0.

1–3+.

4–25+ in corymbiform arrays.

1.5–2.5 mm, glabrous;

pappi 8–11 mm.

1–1.5 mm, hirtellous on ribs;

pappi 3–5 mm.

= 40, 46, 92.

= 46.