Flora of North America species comparison

usually 1 (sometimes more, clustered), usually glabrous, sometimes bases and leaf axils tomentose.

1, glabrous or sparsely tomentose.

petiolate;

blades ovate to obovate, lyrate, or reniform, 10–30+ × 10–25+ mm, bases cuneate (sometimes tapering to winged petioles) to subcordate or contracted, margins crenate, dentate, or weakly lobed.

(and proximal cauline) petiolate;

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

abruptly reduced (sessile, not clasping; lanceolate, entire or pinnately lobed to pinnatisect).

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

0 or relatively reduced (then densely tomentose).

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

0 or 11–13;

corolla laminae (yellow, purple streaks in veins) 10–14+ mm.

(8–)13;

corolla laminae 6–10+ mm.

60–75+;

corolla tubes 2–2.5 mm, limbs 4–5 mm.

35–50+;

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

21, deep red or green (tips red), 6–8 mm, glabrous.

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

conspicuous (bractlets cyanic).

conspicuous (bractlets narrow, red-tinged).

1–2.

1–4+ in corymbiform arrays.

1.5–2 mm, glabrous;

pappi 5–6 mm.

1.5–2 mm, glabrous;

pappi 5–6 mm.

= 46, 92, 138.

= 46.