Flora of North America species comparison

1, densely lanate-tomentose proximally, floccose-tomentose to glabrescent distally.

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

(and proximal cauline) petiolate;

blades lanceolate to narrowly ovate or elliptic, 40–120+ × 20–50+ mm, bases tapering, sometimes oblique, margins subentire, crenate, or serrate-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 (± petiolate or sessile, weakly clasping; dentate to pinnately lobed).

abruptly reduced (bractlike).

bracteate, sparsely to densely tomentose.

inconspicuously bracteate, glabrous or densely hairy.

10 or 13;

corolla laminae 6–8+ mm.

0, 8, or 13;

corolla laminae 5–10 mm.

50–60+;

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

30–50+;

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

13 or 21, light green, 5–8 mm, usually glabrous (sometimes hairy proximally).

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

inconspicuous.

conspicuous (bractlets often cyanic).

10–30+ in open, corymbiform arrays (more in robust individuals).

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

1–1.5 mm, hispid;

pappi 5–7 mm.

1.5–2 mm, glabrous;

pappi 5–6 mm.

= 46.

= 44, 46.