Flora of North America species comparison

± erect;

internodes 0.1–1(–5+) mm, ± villous.

± erect;

internodes 0.1–1(–2) mm, strigose.

basal and cauline, ± spatulate, 6–12(–15+) × 1–3+ mm, little, if at all, fleshy or notably thickened, faces of earliest leaves glabrous or glabrate, of later leaves ± villous to pilosulous.

basal and cauline, blades ± spatulate to oblanceolate, 10–35+ × 2–5+ mm, not fleshy, faces usually ± strigose, sometimes glabrous.

± hemispheric, (12–)16–30+ mm diam.

hemispheric to campanulate, 8–15 mm diam.

21–65+;

corollas white adaxially, laminae 8–12(–16+) mm, glandular-puberulent abaxially.

13–21+;

corollas usually white, sometimes pink or blue, adaxially, laminae 6–12 mm, abaxially usually glandular-puberulent, sometimes glabrous.

100–150+;

corollas 4–6+ mm.

30–60+;

corollas 3.5–5.5 mm.

45–60+ in 5+ series, the longer narrowly lanceolate to subulate, 9–11 mm (l/w = 7–9), apices attenuate, abaxial faces ± pilose.

18–32 in 3–4+ series, the longer ± oblanceolate, 6–9 mm (l/w = 3–5), glabrate, or sparsely strigillose, apices obtuse to acute, abaxial faces glabrous.

± sessile or at ends of leafy stems.

usually on scapiform peduncles 5–60+ mm, sometimes sessile.

3–4.5 mm, faces hairy, hair tips entire;

pappi readily falling, of 25–30 subulate to setiform scales 5–8 mm (± connate basally).

4.5 mm, faces glabrous or hairy at bases, hair tips glochidiform;

pappi persistent;

on ray cypselae 24–30+ subulate to setiform scales 5–6 mm;

on disc cypselae 24–30+ subulate to setiform scales 5.5–6.6 mm.

= 18, 36.