Flora of North America species comparison

decumbent to erect;

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

± erect;

internodes 0.1–1 mm, ± hirsute to strigose or glabrate.

basal and cauline, blades spatulate to oblanceolate or linear, 12–30(–50) × 2–7(–9) mm, not fleshy, faces ± strigose to strigillose.

basal and cauline, blades ± spatulate to narrowly oblanceolate or linear, 12–40(–75) × 2–6+ mm, not fleshy, faces ± strigillose.

± campanulate, 5–20 mm diam.

± hemispheric, (10–)12–25+ mm diam.

8–30+;

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

11–40;

corollas white adaxially, laminae (9–)12–18+ mm, glabrous abaxially.

(8–)20–80(–100+);

corollas 3.5–5 mm.

100–150+;

corollas 6.5–9(–12+) mm.

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.

30–45(–60) in 4–6+ series, the longer narrowly lanceolate or linear to subulate, (10–)12–14(–17) mm (l/w = 6–9), apices obtuse to acute, abaxial faces sparsely strigillose or glabrate.

at tips of stems (usually surpassed by leaves).

± sessile (usually nestled among rosette leaves).

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.

4(–6+) mm, faces hairy, hair tips glochidiform;

pappi persistent;

on ray cypselae 20–30 setiform scales 6–8+ mm;

on disc cypselae 20–30+ setiform scales 6.5–11+ mm.

= 18.

= 18.