Flora of North America species comparison

± erect;

internodes 0.1–1+ mm, glabrous or ± strigose.

decumbent to erect;

internodes (0.1–)2–12(–25+) mm, strigose.

basal and cauline, ± spatulate to oblanceolate, 10–35 × 2–7 mm, ± fleshy, faces sparsely strigose or glabrous.

basal and cauline, blades spatulate to oblanceolate, 15–35(–60+) × 2–5(–8+) mm, not fleshy, faces ± strigose or glabrate Heads at tips of stems (usually surpassed by leaves).

± hemispheric, 12–28+ mm diam.

± hemispheric or broader, 12–25(–35+) mm diam.

18–40;

corollas blue to purplish adaxially, laminae 8–16 mm, glabrous abaxially.

21–67+;

corollas usually blue or purplish, rarely white or pinkish, adaxially, laminae 7–15(–20+) mm, glabrous abaxially.

60–100+;

corollas 3.5–4.5+ mm.

150–200+;

corollas 4.5–6 mm.

40–60+ in (3–)4–5+ series, the longer obovate to oblanceolate, 7–9+ mm (l/w = 2.5–5), apices obtuse to acute, abaxial faces glabrous.

40–64 in 4–7+ series, the longer ± lanceolate to lance-linear, 10–15+ mm (l/w = 4–6), apices acute to attenuate (soft, not apiculate), abaxial faces ± strigose or glabrous.

± sessile or on peduncles 5–25+ mm.

4 mm, faces nearly glabrous (discs) or sparsely hairy (ray, hairs mostly at bases), hair tips glochidiform;

pappi persistent;

on ray cypselae 12–20 lanceolate to subulate scales 0.5–1.5 mm;

on disc cypselae 15–30 subulate to setiform scales 3–6 mm.

3–4.5+ mm, hairy, hair tips forked or entire;

pappi persistent, of 24–30+ subulate to setiform scales 3.5–4(–7.5) mm.

= 36 (apomicts).

= 18.