Flora of North America species comparison

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

1 or 3–5, clustered (often scapiform), usually floccose, lanate-tomentose, or canescent, sometimes glabrate.

(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.

(either of two forms): usually (1) sessile, sometimes petiolate;

blades narrowly lanceolate to elliptic, 15–40+ × 5–25 mm, bases tapering, margins entire or dentate toward apices (often revolute), sometimes (2) petiolate;

blades ovate to orbiculate, 10–20 × 5–15 mm, bases tapering to abruptly contracted, margins entire or wavy, sometimes dentate toward apices.

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

abruptly reduced (bractlike).

ebracteate or bracteate (bractlets inconspicuous), glabrous.

inconspicuously bracteate, glabrous or densely hairy.

8 or 13;

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

0, 8, or 13;

corolla laminae 5–10 mm.

60–80+;

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

30–50+;

corolla tubes 2.5–3.5 mm, limbs 3–4 mm.

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

13 or 21, green (tips sometimes cyanic), 4–10 mm, glabrous or hairy.

0 or inconspicuous.

conspicuous (bractlets often cyanic).

7–15+ in open, corymbiform arrays.

1–5(–8) in cymiform to subumbelliform arrays.

1–1.5 mm, glabrous;

pappi 3–5 mm.

1.5–2 mm, glabrous;

pappi 5–6 mm.

= 46.

= 44, 46.