Flora of North America species comparison

1, glabrous or sparsely tomentose.

1 or 2–5+, loosely clustered, glabrous or leaf axils sparsely tomentose.

(and proximal cauline) petiolate;

blades ovate, oblanceolate, or spatulate, 10–30 × 5–20 mm, bases tapering, sometimes obtuse, margins entire, subentire, or dentate.

(and proximal cauline) petiolate;

blades narrowly lanceolate (pinnatifid, lateral lobes 6+ pairs, their bases petioluliform, terminal lobes smaller than laterals), 60–100 × 10–20 mm, bases tapering, ultimate margins dentate.

abruptly reduced (sessile, clasping; bractlike, entire).

gradually reduced (sessile).

bracteate (bractlets red-tinged), densely lanate-tomentose.

bracteate or ebracteate, glabrous.

(8–)13;

corolla laminae 6–10+ mm.

(8–)13;

corolla laminae 8–10+ mm.

35–50+;

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

40–55+;

corolla tubes 2–3 mm, limbs 2–3 mm.

(13–)21, green (tips red or dark red), densely tomentose proximally.

(13–)21, green (tips yellow), 4–6+ mm, glabrous.

conspicuous (bractlets narrow, red-tinged).

inconspicuous.

1–4+ in corymbiform arrays.

6–20+ in corymbiform arrays.

1.5–2 mm, glabrous;

pappi 5–6 mm.

1–1.5 mm, hirtellous on ribs;

pappi 3.5–4.5 mm.

= 46.