Flora of North America species comparison

acute, mucronate, longest 6–15 mm;

largest capitular leaves (all) ± elliptic to ± oblanceolate (widest in distal 2/3), 4–11 × 1–2.5 mm (distalmost mainly 0.8–1.2 times head heights).

blunt (proximal) or acute (median and distal), mucronate, longest 6–13 mm;

largest capitular leaves ± elliptic to narrowly ovate, 3–10 × 2–3 mm.

cylindric, 1.4–2.7 mm, heights 4–7 times diams.;

scars ± evenly distributed, mamillate.

clavate, 1.2–2.2 mm, heights 2.8–3.5 times diams.;

scars ± evenly distributed, mamillate.

0, vestigial, or falling, ± subulate, mostly 0.1–0.5 mm, unequal.

0, vestigial, or falling, ± subulate, mostly 0.1–0.5 mm, unequal.

in ± paniculiform to cymiform, rarely dichasiform, arrays, ± spheric, largest 5–6 mm, thickly lanuginose.

in cymiform to ± paniculiform, sometimes dichasiform arrays, ± spheric, largest 3.5–4.5 × 3–4 mm, thickly lanuginose.

1–1.4 mm, obcompressed;

pappi: staminate rarely 0, usually of 1–4(–8) smooth to barbellulate bristles 1.1–2 mm.

0.6–0.8 mm, slightly compressed;

pappi: staminate of (1–)3–8 barbellate bristles 0.9–1.3 mm (proximal barbs longer, spreading).

paleae: longest 3.4–4.2 mm, winged distally;

wings elliptic to ovate, widest in distal 1/3 of palea lengths;

bodies cartilaginous;

outermost paleae ± saccate.

paleae: longest 1.9–3.1 mm, winged distally;

wings ± elliptic, widest in distal 1/3 of palea lengths;

bodies (except midnerves) chartaceous;

outermost paleae ± saccate.

staminate florets 3–6;

ovaries vestigial, 0–0.3 mm;

corollas 1.1–2.3 mm.

staminate florets 2–5;

ovaries partially developed, 0.3–0.6 mm;

corollas 0.9–1.4 mm.