Flora of North America species comparison

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

usually 1 (sometimes more, clustered), glaucous.

(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, relatively thick and turgid) petiolate;

blades lanceolate to narrowly oblanceolate, 30–100+ × 10–20+ mm, bases tapering, margins entire or subentire.

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

gradually reduced (sessile and weakly clasping; lanceolate, entire).

ebracteate or bracteate (bractlets inconspicuous), glabrous.

conspicuously bracteate, glaucous.

8 or 13;

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

8–10(–13);

corolla laminae 5–7 mm.

60–80+;

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

25–40+;

corolla tubes 2–3 mm, limbs 3–4 mm.

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

(13) 21, green (tips often purple), glabrous.

0 or inconspicuous.

conspicuous.

7–15+ in open, corymbiform arrays.

12–20+ in open, corymbiform arrays.

1–1.5 mm, glabrous;

pappi 3–5 mm.

1–1.5 mm, glabrous;

pappi 5–6 mm.

= 46.

= 46.