Flora of North America species comparison

1, glabrous or sparsely tomentose.

usually 1, rarely 2–3, loosely clustered, glabrous.

(and proximal cauline) petiolate;

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

petiolate;

blades ovate, obovate, or elliptic, 20–40+ × 10–30+ mm, bases tapering to contracted, margins subentire to crenate-dentate.

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

abruptly reduced (sessile, often weakly clasping, dentate to subentire; distals sessile, lanceolate, weakly clasping, entire or dentate).

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

sparsely bracteate or ebracteate, glabrous.

(8–)13;

corolla laminae 6–10+ mm.

13;

corolla laminae 7–12+ mm.

35–50+;

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

40–55+;

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

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

(13–)21, green (tips sometimes cyanic), 5–8+ mm, glabrous.

conspicuous (bractlets narrow, red-tinged).

(bractlets frequently cyanic).

1–4+ in corymbiform arrays.

1(–5; sometimes subtended by 2 relatively large bractlets).

1.5–2 mm, glabrous;

pappi 5–6 mm.

1.5–2.5 mm, glabrous;

pappi 4–6 mm.

= 46.

= 46, 90.