Flora of North America species comparison

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

1, glabrous.

(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.

petiolate;

blades orbiculate-ovate, orbiculate, obovate, or subreniform, 30–80+ × 30–80+ mm, bases cordate to contracted, margins crenate, dentate, or wavy.

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

abruptly reduced (proximal petiolate or sessile and clasping, broadly lanceolate, irregularly incised or crenate; mid ones sessile, clasping, sometimes auriculate, oblong to hastate, irregularly dentate; distal bractlike, entire).

bracteate, glabrous.

conspicuously bracteate, glabrous.

8 or 13;

corolla laminae 3–7 mm.

usually 8+, rarely 0;

corolla laminae 8–11 mm.

30–45(–100+);

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

30–45+;

corolla tubes 4–5 mm, limbs 6–7 mm.

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

13, light green, 5–9+ mm, glabrous.

inconspicuous or 0.

conspicuous.

4–25+ in corymbiform arrays.

3–8 in open, cymiform arrays.

1–1.5 mm, hirtellous on ribs;

pappi 3–5 mm.

1.5–2 mm, glabrous;

pappi 9–10 mm.

= 46.