Flora of North America species comparison

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

usually 1, sometimes 2–4, clustered, glabrous or sparsely tomentose proximally.

(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 usually broadly lanceolate to ovate, sometimes subhastate, 20–50+ × 20–40+ mm, bases truncate to subcordate or obtuse, margins crenate, denticulate, bluntly dentate, or sharply dentate (proximal cauline leaves petiolate; margins usually pinnately lobed to laciniate, sometimes subentire).

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

gradually reduced (becoming sessile, sometimes clasping).

bracteate, glabrous.

bracteate, glabrous.

8 or 13;

corolla laminae 3–7 mm.

0, 8, or 13;

corolla laminae 6–10+ mm.

30–45(–100+);

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

70–80+;

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

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

(13–)21(–30+), light green, 3–8 mm, glabrous.

inconspicuous or 0.

inconspicuous.

4–25+ in corymbiform arrays.

5–20+ in open or congested, subumbelliform arrays.

1–1.5 mm, hirtellous on ribs;

pappi 3–5 mm.

1–1.5 mm, glabrous;

pappi 4.5–5.5 mm.

= 46.

= 40, 44, 46, 80.