Flora of North America species comparison

1, glabrous or leaf axils sparsely tomentose.

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

(and proximal cauline) petiolate;

blades narrowly ovate to oblong-lanceolate, 30–70+ × 10–20+ mm, bases abruptly contracted to subcordate, margins usually serrate-dentate, sometimes subcrenate (apices acute).

(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; lacerate to subcrenate).

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

bracteate, glabrous.

bracteate, glabrous.

8–13;

corolla laminae 4–7 mm.

8 or 13;

corolla laminae 3–7 mm.

50–70+;

corolla tubes 3.5–4 mm, limbs 3–3.5 mm.

30–45(–100+);

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

13 or 21, light green (tips sometimes black), 5–8 mm, glabrous.

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

conspicuous.

inconspicuous or 0.

8–20+ in loose, corymbiform arrays.

4–25+ in corymbiform arrays.

1–1.5 mm, glabrous;

pappi 5–5.5 mm.

1–1.5 mm, hirtellous on ribs;

pappi 3–5 mm.

= 44.

= 46.