Flora of North America species comparison

1 or multiple, clustered, usually glabrous, rarely sparsely floccose-tomentose, leaf axils sometimes tomentose.

usually 1, rarely 2–3, clustered, irregularly arachnoid-tomentose to lanate-tomentose or glabrescent.

(and proximal cauline, relatively thick and turgid) petiolate;

blades lanceolate or narrowly oblanceolate, 20–40+ × 5–15 mm, bases tapering, margins usually entire, sometimes sub-pinnatisect (apices subentire or dentate).

(and proximal cauline, relatively turgid) petiolate;

blades broadly ovate or lyrate (± pinnately lobed, lateral lobes 1–3 pairs, smaller than terminals), 10–30+ × 10–20+ mm, bases tapering to cuneate, ultimate margins subentire or crenate to coarsely dentate (abaxial faces tomentose).

gradually reduced (± petiolate or sessile).

gradually reduced (sessile; bractlike, entire).

bracteate, glabrous or sparsely tomentose.

bracteate, irregularly tomentose.

8–10(–13);

corolla laminae 5–8+ mm.

8–13;

corolla laminae 8–10 mm.

45–60+;

corolla tubes 3–3.5 mm, limbs 4–5 mm.

60–75+;

corolla tubes 2.5–4 mm, limbs 3.5–5 mm.

13 or 21, green, 6–10 mm, sparsely tomentose proximally, glabrous distally.

(8–)13 or 21, green, 7–10+ mm, densely tomentose proximally, glabrescent distally (tips hair-tufted).

inconspicuous.

inconspicuous.

4–15+ in corymbiform arrays.

3–6 in cymiform arrays.

1.5–2.5 mm, glabrous or sparsely hirtellous on ribs;

pappi 5–6 mm.

2–2.5 mm, glabrous;

pappi 5–7 mm.

= 46.

= 46.