Flora of North America species comparison

1 or 2–5, loosely clustered, usually glabrous or glabrescent, sometimes sparsely tomentose throughout, axils (basal leaves) tomentose.

1 or 3–5, loosely clustered, glabrous or bases and leaf axils tomentose.

(and proximal cauline) petiolate;

blades obovate, oblanceolate, spatulate, or lyrate to sublyrate (± pinnately lobed, lateral lobes 3–6 pairs, smaller than terminal lobes), 40–80+ × 10–30+ mm, bases tapering, ultimate margins incised to dentate.

(and proximal cauline, relatively thick and turgid) petiolate (petioles sometimes winged);

blades elliptic-ovate or suborbiculate to spatulate, 15–25 × 5–20 mm, bases tapering, margins entire or dentate (at apices).

gradually reduced (sessile).

abruptly reduced (becoming sessile, bractlike).

conspicuously bracteate, glabrous or tomentose.

ebracteate, glabrous.

8–13;

corolla laminae 7–10 mm.

(0) or 8–13;

corolla laminae 7–9 mm.

40–50+;

corolla tubes 4–5 mm, limbs 3–4 mm.

35–50+;

corolla tubes 2–3 mm, limbs 2.5–3.5 mm.

13–21, green (tips often yellow), 4–9+ mm, glabrous or sparsely tomentose (at least proximally).

13, cyanic, 8–9 mm, glabrous or loosely tomentose proximally.

conspicuous.

inconspicuous.

10–30+ in open, corymbiform or subumbelliform arrays.

1–2(–4).

2–3 mm, glabrous or hirtellous on ribs;

pappi 5–6 mm.

1–2 mm, glabrous;

pappi 3–4.5 mm.

= 46, 92.