Flora of North America species comparison

1 or 2–3, loosely clustered, glabrous.

1 or 2–5+, clustered, lanate- or arachno-tomentose or glabrescent.

(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.

(often abaxially cyanic) petiolate (petioles hairy to glabrate);

blades ovate to lanceolate or narrowly lanceolate, 20–60+ × 10–30+ mm, bases abruptly contracted to tapering, margins subentire or denticulate to subserrate (abaxial faces usually tomentose, adaxials frequently glabrate).

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

gradually or abruptly reduced (proximal petiolate, similar to basals; mids and distals sessile, lanceolate, entire).

ebracteate or inconspicuously bracteate, glabrous.

conspicuously bracteate, usually hairy.

8 or 13;

corolla laminae 10–15+ mm.

(5–)8 or 13;

corolla laminae 4–10 mm.

30–45+;

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

40–60+;

corolla tubes 1.5–2.5 mm, limbs 3.5–4.5 mm.

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

13 or 21, green or yellowish, 4–7+ mm, tomentose to glabrescent.

conspicuous.

conspicuous.

8–15+ in corymbiform or subumbelliform arrays.

3–20+ in open or compact, corymbiform to subumbelliform arrays (subtended by smaller arrays arising from leaf axils).

2.5–3.5 mm, glabrous;

pappi 5–7 mm.

1.5–2.5 mm, usually hirtellous on ribs, sometimes glabrous;

pappi 5–6+ mm.

= 46.

= 44, 46, 92.