Flora of North America species comparison

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

1 or 2–5 (often scapiform), loosely clustered, glabrous or leaf axils sparsely hairy.

(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) petiolate;

blades obovate to ovate or sublyrate, 30–60+ × 10–40+ mm, bases tapering, margins deeply dissected or pinnatifid, ultimate margins crenate to crenate-dentate.

gradually reduced (± petiolate or sessile).

abruptly reduced or 0 (sessile; ovate to obovate, dissected or pinnatifid).

bracteate, glabrous or sparsely tomentose.

inconspicuously bracteate or ebracteate, glabrous.

8–10(–13);

corolla laminae 5–8+ mm.

5 or 8;

corolla laminae 5–10 mm.

45–60+;

corolla tubes 3–3.5 mm, limbs 4–5 mm.

20–30+;

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

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

(8–)13, light green (tips yellowish), 4–7 mm, glabrous.

inconspicuous.

0 or inconspicuous.

4–15+ in corymbiform arrays.

4–10+ in subumbelliform cymiform arrays.

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

pappi 5–6 mm.

1–1.5 mm, glabrous;

pappi 4–4.5 mm.

= 46.

= 40.