Flora of North America species comparison

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

1 or 2–3, clustered, glabrous or leaf axils tomentose.

(and proximal cauline) petiolate (petioles narrow);

blades narrowly lanceolate or ovate to oblong-ovate, 20–60+ × 10–40+ mm, bases abruptly contracted to tapering, margins subentire to crenate-dentate.

(and proximal cauline) petiolate;

blades broadly oblanceolate (pinnately lobed, lateral lobes 2–3+ pairs, their bases petioluliform, terminal lobes larger than laterals, ovate to reniform, midribs not winged), 60–120+ × 20–60 mm, bases contracted, ultimate margins crenate to crenate-dentate.

gradually reduced (sessile, weakly clasping; lanceolate to oblong or sublyrate, often pinnately lobed).

gradually reduced (petiolate or sessile; lyrate to sublyrate, midribs winged, terminal lobes weakly distinct, shallowly dentate).

ebracteate or bracteate (bractlets inconspicuous), glabrous.

inconspicuously bracteate, glabrous or tomentose proximally.

8 or 13;

corolla laminae (deep yellow to orange-red) 6–8+ mm.

8;

corolla laminae 6–12 mm.

60–80+;

corolla tubes 4.5–5.5 mm, limbs 2.5–3.5 mm.

35–50+;

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

13 or 21, light green (or tips cyanic), 4–8 mm, glabrous.

13, bright green (tips light green to yellow), 4–7 mm, glabrous.

0 or inconspicuous.

inconspicuous.

7–15+ in open, corymbiform arrays.

3–8+ in subumbelliform or compound, cymiform arrays (of 2–4+ cymiform clusters of 2–5+ heads each).

1–1.5 mm, glabrous;

pappi 3–5 mm.

1.5–2 mm, glabrous;

pappi 4.5–5.5 mm.

= 46.

= 46.