Flora of North America species comparison

decumbent to erect;

internodes 3–12(–15+) mm, piloso-strigose.

± erect;

internodes (0.1–)2–25(–50) mm, strigose.

basal and cauline, blades spatulate to linear, 10–25(–50+) × 2–3(–8+) mm, not fleshy, faces ± strigose.

basal and cauline, blades spatulate to oblanceolate or linear, 20–40(–90+) × 1–5(–10) mm, not fleshy (margins strigoso-ciliate), faces usually glabrous, sometimes sparsely strigillose (midribs scabrous).

± hemispheric or broader, 16–20(–30) mm diam.

hemispheric, (8–)10–14+ mm diam.

13–34+;

corollas white or pinkish adaxially, laminae (8–)10–18+ mm, abaxially usually glandular-puberulent, rarely glabrous.

20–40;

corollas usually white adaxially, laminae 7–15(–20+) mm, glabrous abaxially.

(80–)100–150+;

corollas (4–)5.5–6+ mm.

(60–)80–120+;

corollas 4–6 mm.

24–30+ in 3–4+ series, the longer ± lanceolate, (6–)9–11+ mm (l/w = 2.5–5), apices acute, abaxial faces strigose.

30–40+ in 4–5+ series, the longer lance-ovate to lanceolate, 8–10(–12+) mm (l/w = 3–5), apices acute to attenuate (most hard, apiculate), abaxial faces sparsely strigillose or glabrous.

at tips of stems.

at tips of stems (usually surpassed by leaves).

(3.5–)4–5+ mm, faces hairy, hair tips entire or forked;

pappi persistent;

on ray cypselae 20–30 subulate to setiform scales 2–6 mm;

on disc cypselae 20–30+ subulate to setiform scales (4–)5–7+ mm.

3.5–4+ mm, faces hairy, hair tips forked or glochidiform;

pappi persistent;

on ray cypselae each a corona 0.1–0.5 mm or 10–20 subulate scales 1–2.5 mm;

on disc cypselae 15–30 subulate to setiform scales (4–)5–6 mm.

= 18.

= 18.