Flora of North America species comparison

± scattered over proximal 1/2–3/4 of plant heights, internodes mostly 40–100 mm;

lobes mostly linear to filiform, sometimes oblanceolate, 20–40(–50+) × 0.5–1(–2.5) mm.

mostly crowded over proximal 1/4(–1/2) of plant heights, internodes mostly 1–5(–35 mm);

lobes mostly oblanceolate to linear, (5–)10–35(–45+) × (1–)2–3(–5) mm.

crowded to ± scattered over proximal 1/3–1/2 of plant heights, internodes mostly 5–50(–80+) mm;

lobes mostly linear to filiform, sometimes oblanceolate, (5–)15–75 × 0.5–1(–2) mm.

0.

0, or 8;

laminae yellow, (6–)12–20+ mm.

usually 8, rarely 0;

laminae yellow, 4–8(–12+) mm.

yellow, often with red-brown nerves, throats shorter than lobes.

yellow, sometimes with red-brown nerves, throats equal to or longer than lobes.

red-brown, throats shorter than lobes.

of 3–5+ ovate to oblong bractlets 1–2(–3) mm.

of 7–9 deltate to lance-linear bractlets 2–4+ mm.

of 3–5+ ovate to oblong bractlets 1–3 mm.

5–8 mm;

pappi 1–2(–3) mm.

5–7 mm;

pappi usually 0, rarely 0.1–0.5 mm.

4–5+ mm;

pappi usually 1.5–2+ mm, rarely 0.

= 22, 44.

= 22, 24.

= 44.