Flora of North America species comparison

1 or 2–3, loosely clustered, glabrous.

usually 1, rarely 2–3, loosely clustered, glabrous.

(and proximal cauline) petiolate;

blades ± orbiculate to oblong, or lyrate (lateral lobes 1–3 pairs, sinuses usually rounded, midribs usually winged), 50–120+ × 30–70+ mm, bases cordate to subcordate, margins shallowly to deeply incised.

petiolate;

blades ovate, obovate, or elliptic, 20–40+ × 10–30+ mm, bases tapering to contracted, margins subentire to crenate-dentate.

gradually reduced (petiolate or sessile and clasping; lanceolate, incised).

abruptly reduced (sessile, often weakly clasping, dentate to subentire; distals sessile, lanceolate, weakly clasping, entire or dentate).

ebracteate or inconspicuously bracteate, glabrous.

sparsely bracteate or ebracteate, glabrous.

8 or 13;

corolla laminae 10–15+ mm.

13;

corolla laminae 7–12+ mm.

30–45+;

corolla tubes 3–4 mm, limbs 3.5–4.5 mm.

40–55+;

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

(8), 13, or 21, dark green, 5–8 mm, glabrous or sparsely tomentose proximally.

(13–)21, green (tips sometimes cyanic), 5–8+ mm, glabrous.

conspicuous.

(bractlets frequently cyanic).

8–15+ in corymbiform or subumbelliform arrays.

1(–5; sometimes subtended by 2 relatively large bractlets).

2.5–3.5 mm, glabrous;

pappi 5–7 mm.

1.5–2.5 mm, glabrous;

pappi 4–6 mm.

= 46.

= 46, 90.