Flora of North America species comparison

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

1, irregularly lanate or tomentose.

(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.

(and proximal cauline) petiolate;

blades orbiculate, ovate, oblanceolate, or rhombic, 20–50+ × 20–40+ mm, bases tapering, sometimes obtuse, margins coarsely dentate to crenate-dentate.

abruptly reduced (bractlike).

gradually to abruptly reduced (petioles broad-winged, clasping, blades obovate, bases tapering, margins irregularly dentate; distal sessile, linear to lanceolate, entire).

inconspicuously bracteate, glabrous or densely hairy.

bracteate, lanate or tomentose distally.

0, 8, or 13;

corolla laminae 5–10 mm.

8–10(–13);

corolla laminae (red-orange) 8–15+ mm.

30–50+;

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

35–65+;

corolla tubes 4–5 mm, limbs 5–6 mm.

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

21, green (tips sometimes deep red), 8–10+ mm, densely tomentose proximally, sparsely tomentose distally.

conspicuous (bractlets often cyanic).

conspicuous.

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

1–3+.

1.5–2 mm, glabrous;

pappi 5–6 mm.

1.5–2.5 mm, glabrous;

pappi 8–11 mm.

= 44, 46.

= 40, 46, 92.