Flora of North America species comparison

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

1 (often purplish), sparsely lanate or arachno-tomentose, glabrescent.

(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 lyrate to sublyrate (midribs winged) or ovate to orbiculate, 10–20+ × 30–50+ mm, bases tapering to contracted, ultimate margins ± dentate (faces glabrate at flowering).

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

gradually reduced (sessile; usually bractlike and entire, sometimes larger and pinnatifid).

bracteate, glabrous.

conspicuously bracteate (bractlets red-tipped), densely lanate-tomentose.

8 or 13;

corolla laminae 3–7 mm.

8 or 13;

corolla laminae 5–10 mm.

30–45(–100+);

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

30–40+;

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

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

13 or 21, purplish, 6–9 mm, sparsely tomentose.

inconspicuous or 0.

conspicuous (bractlets reddish or purple).

4–25+ in corymbiform arrays.

borne singly or 2–6 in compact, cymiform arrays.

1–1.5 mm, hirtellous on ribs;

pappi 3–5 mm.

1.5–2 mm, glabrous;

pappi 5–6 mm.

= 46.

= 46.