Flora of North America species comparison

1 or 2–5, clustered, usually glabrous, sometimes sparsely floccose-tomentose proximally and in leaf axils.

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

(and proximal cauline, relatively thick and turgid) petiolate;

blades spatulate to oblanceolate, or ovate to orbiculate, 20–40+ × 10–30+ mm, bases tapering to abruptly contracted or subcordate, margins entire, crenate, dentate, or weakly lobulate (faces usually glabrous, sometimes hairy).

(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 to abruptly reduced (± petiolate or sessile; entire or subentire).

abruptly reduced (bractlike).

bracteate, glabrous or sparsely tomentose.

inconspicuously bracteate, glabrous or densely hairy.

8 or 13;

corolla laminae 5–10 mm.

0, 8, or 13;

corolla laminae 5–10 mm.

35–60+;

corolla tubes 2–4 mm, limbs 2.5–4 mm.

30–50+;

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

(8–)13 or 21, green (tips sometimes cyanic), 4–7+ mm, glabrous.

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

conspicuous.

conspicuous (bractlets often cyanic).

2–20+ in loose, corymbiform or subumbelliform arrays.

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

1–2.5 mm, glabrous;

pappi 3–6 mm.

1.5–2 mm, glabrous;

pappi 5–6 mm.

= 46, 92.

= 44, 46.