Flora of North America species comparison

1 or 2–5, clustered, usually glabrous, sometimes sparsely floccose-tomentose proximally and in leaf axils.

1 or 3–4+, clustered, sparsely tomentose to glabrescent.

(and proximal cauline, relatively thick and turgid) petiolate;

blades spatulate to oblanceolate, or ovate to orbiculate, 20–40+ × 10–30+ mm, bases tapering to abruptly contracted or subcordate, margins entire, crenate, dentate, or weakly lobulate (faces usually glabrous, sometimes hairy).

(and proximal cauline, relatively thick and turgid) petiolate;

blades narrowly elliptic or lanceolate to oblanceolate, 40–70+ × 5–20+ mm, bases tapering, margins entire or subentire to weakly and irregularly dentate (especially at apices).

gradually to abruptly reduced (± petiolate or sessile; entire or subentire).

gradually reduced (distal sessile, bractlike).

bracteate, glabrous or sparsely tomentose.

bracteate (bractlets usually red-tipped), sparsely tomentose to glabrate.

8 or 13;

corolla laminae 5–10 mm.

5 or 8;

corolla laminae 12–16 mm.

35–60+;

corolla tubes 2–4 mm, limbs 2.5–4 mm.

50–60+;

corolla tubes 3.5–4.5 mm, limbs 4.5–5.5 mm.

(8–)13 or 21, green (tips sometimes cyanic), 4–7+ mm, glabrous.

13 or 21, dark green proximally, becoming light green distally (tips red), 7–11+ mm, floccose-tomentose proximally.

conspicuous.

conspicuous (bractlets red-tipped).

2–20+ in loose, corymbiform or subumbelliform arrays.

5–12+ in open, cymiform arrays.

1–2.5 mm, glabrous;

pappi 3–6 mm.

2.5–3.5 mm, glabrous;

pappi 7–8 mm.

= 46, 92.

= 92.