Flora of North America species comparison

± erect;

internodes 0.1–1(–5+) mm, ± villous.

decumbent to erect;

internodes 5–25 mm, piloso-strigose to strigillose (surfaces seldom hidden by hairs).

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 or linear, 12–30(–50) × 2–7(–9) mm, not fleshy, faces ± strigose to strigillose.

± hemispheric, (12–)16–30+ mm diam.

± campanulate, 5–20 mm diam.

21–65+;

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

8–30+;

corollas white or pinkish adaxially, laminae 5–14 mm, abaxially usually glabrous, sometimes glandular-puberulent.

100–150+;

corollas 4–6+ mm.

(8–)20–80(–100+);

corollas 3.5–5 mm.

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

20–24 in 3–4+ series, the longer ± lance-ovate to lanceolate, 5–9 mm (l/w = 2.5–5), apices acute to acuminate, abaxial faces strigose.

± sessile or at ends of leafy stems.

at tips of stems (usually surpassed by leaves).

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

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

3–4 mm, faces hairy, hair tips glochidiform;

pappi persistent;

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

on disc cypselae 20–35 subulate to setiform scales 3.5–5.5 mm.

= 18.