Flora of North America species comparison

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

1 or 3–5, clustered (often scapiform), usually floccose, lanate-tomentose, or canescent, sometimes glabrate.

(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.

(either of two forms): usually (1) sessile, sometimes petiolate;

blades narrowly lanceolate to elliptic, 15–40+ × 5–25 mm, bases tapering, margins entire or dentate toward apices (often revolute), sometimes (2) petiolate;

blades ovate to orbiculate, 10–20 × 5–15 mm, bases tapering to abruptly contracted, margins entire or wavy, sometimes dentate toward apices.

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

abruptly reduced (bractlike).

bracteate, glabrous.

inconspicuously bracteate, glabrous or densely hairy.

8 or 13;

corolla laminae 3–7 mm.

0, 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.

30–50+;

corolla tubes 2.5–3.5 mm, limbs 3–4 mm.

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

13 or 21, green (tips sometimes cyanic), 4–10 mm, glabrous or hairy.

inconspicuous or 0.

conspicuous (bractlets often cyanic).

4–25+ in corymbiform arrays.

1–5(–8) in cymiform to subumbelliform arrays.

1–1.5 mm, hirtellous on ribs;

pappi 3–5 mm.

1.5–2 mm, glabrous;

pappi 5–6 mm.

= 46.

= 44, 46.