Flora of North America species comparison

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

usually 1 or 2–5, rarely 6–20, clustered, glabrous but for tomentose leaf axils.

(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 elliptic-ovate, broadly oblanceolate, or lyrate (lateral lobes 3–9 pairs), 40–70 × 15–25 mm, bases tapering, margins irregularly and deeply parted or lobed (apices incised).

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

usually gradually, sometimes abruptly, reduced (petiolate or sessile; narrowly elliptic to oblanceolate, pinnatifid).

bracteate, glabrous.

ebracteate or bracteate, glabrous.

8 or 13;

corolla laminae 3–7 mm.

(10–)13;

corolla laminae 5–7+ mm.

30–45(–100+);

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

60–75+;

corolla tubes 2–3 mm, limbs 2–3 mm.

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

13 or 21, light green, 4–6+ mm, glabrous.

inconspicuous or 0.

usually 0, sometimes inconspicuous.

4–25+ in corymbiform arrays.

3–20+ in open or congested, corymbiform arrays, frequently subtended by smaller arrays from leaf axils.

1–1.5 mm, hirtellous on ribs;

pappi 3–5 mm.

1–1.5 mm, hirsute on ribs;

pappi 3–5 mm.

= 46.

= 36.