Flora of North America species comparison

1, glabrous or sparsely tomentose.

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

(and proximal cauline) petiolate;

blades ovate, oblanceolate, or spatulate, 10–30 × 5–20 mm, bases tapering, sometimes obtuse, margins entire, subentire, or 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.

abruptly reduced (sessile, clasping; bractlike, entire).

abruptly reduced (bractlike).

bracteate (bractlets red-tinged), densely lanate-tomentose.

inconspicuously bracteate, glabrous or densely hairy.

(8–)13;

corolla laminae 6–10+ mm.

0, 8, or 13;

corolla laminae 5–10 mm.

35–50+;

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

30–50+;

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

(13–)21, green (tips red or dark red), densely tomentose proximally.

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

conspicuous (bractlets narrow, red-tinged).

conspicuous (bractlets often cyanic).

1–4+ in corymbiform arrays.

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

1.5–2 mm, glabrous;

pappi 5–6 mm.

1.5–2 mm, glabrous;

pappi 5–6 mm.

= 46.

= 44, 46.