Flora of North America species comparison

usually 1, rarely 2–3, clustered, irregularly arachnoid-tomentose to lanate-tomentose or glabrescent.

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

(and proximal cauline, relatively turgid) petiolate;

blades broadly ovate or lyrate (± pinnately lobed, lateral lobes 1–3 pairs, smaller than terminals), 10–30+ × 10–20+ mm, bases tapering to cuneate, ultimate margins subentire or crenate to coarsely dentate (abaxial faces tomentose).

(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 reduced (sessile; bractlike, entire).

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

bracteate, irregularly tomentose.

bracteate, glabrous.

8–13;

corolla laminae 8–10 mm.

8 or 13;

corolla laminae 3–7 mm.

60–75+;

corolla tubes 2.5–4 mm, limbs 3.5–5 mm.

30–45(–100+);

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

(8–)13 or 21, green, 7–10+ mm, densely tomentose proximally, glabrescent distally (tips hair-tufted).

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

inconspicuous.

inconspicuous or 0.

3–6 in cymiform arrays.

4–25+ in corymbiform arrays.

2–2.5 mm, glabrous;

pappi 5–7 mm.

1–1.5 mm, hirtellous on ribs;

pappi 3–5 mm.

= 46.

= 46.