Flora of North America species comparison

1, irregularly lanate or tomentose.

usually 1, sometimes 2–4, clustered, glabrous or sparsely tomentose proximally.

(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.

petiolate;

blades usually broadly lanceolate to ovate, sometimes subhastate, 20–50+ × 20–40+ mm, bases truncate to subcordate or obtuse, margins crenate, denticulate, bluntly dentate, or sharply dentate (proximal cauline leaves petiolate; margins usually pinnately lobed to laciniate, sometimes subentire).

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

gradually reduced (becoming sessile, sometimes clasping).

bracteate, lanate or tomentose distally.

bracteate, glabrous.

8–10(–13);

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

0, 8, or 13;

corolla laminae 6–10+ mm.

35–65+;

corolla tubes 4–5 mm, limbs 5–6 mm.

70–80+;

corolla tubes 2.5–3.5 mm, limbs 2–3 mm.

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

(13–)21(–30+), light green, 3–8 mm, glabrous.

conspicuous.

inconspicuous.

1–3+.

5–20+ in open or congested, subumbelliform arrays.

1.5–2.5 mm, glabrous;

pappi 8–11 mm.

1–1.5 mm, glabrous;

pappi 4.5–5.5 mm.

= 40, 46, 92.

= 40, 44, 46, 80.