Flora of North America species comparison

1 or 2–3, clustered, glabrous or glabrate.

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

(relatively thick and turgid) petiolate;

blades elliptic-ovate, ovate, or subreniform, 20–40+ × 10–30+ mm, bases tapering to subcordate, margins dentate to crenate (proximal cauline leaves petiolate; margins dissected to pinnatifid).

(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, subentire).

abruptly reduced (bractlike).

bracteate (bractlets cyanic or reddish), glabrous or sparsely tomentose distally.

inconspicuously bracteate, glabrous or densely hairy.

0 or 8–13;

corolla laminae (deep orange-yellow) 5–7 mm.

0, 8, or 13;

corolla laminae 5–10 mm.

60–80+;

corolla tubes 1.5–2.5 mm, limbs 2.5–3.5 mm.

30–50+;

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

13 or 21, deep red or green (then tips deep red to purple), 7–10 mm, glabrous.

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

conspicuous (bractlets deep red or at least apices deep red to purple).

conspicuous (bractlets often cyanic).

1–6+ in open to compact, subumbelliform arrays.

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

1–1.5 mm, glabrous;

pappi 3–4.5 mm.

1.5–2 mm, glabrous;

pappi 5–6 mm.

= 46, 130+.

= 44, 46.