Flora of North America species comparison

± erect;

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

decumbent to erect;

internodes (1–)3–12(–18+) mm, 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).

mostly cauline, blades spatulate to narrowly oblanceolate, 8–12(–25+) × 1–3(–5+) mm, not fleshy, faces ± strigillose.

hemispheric, (8–)10–14+ mm diam.

± hemispheric, 8–12(–16) mm diam.

20–40;

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

12–30+;

corollas white or pinkish to lavender adaxially, laminae 5–8+ mm, glabrous abaxially.

(60–)80–120+;

corollas 4–6 mm.

60–120+;

corollas 2.5–3.5+ mm.

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.

26–30+ in 3+ series, the longer ± lance-ovate to oblanceolate, 5–6+ mm (l/w = 2.5–5), apices acute, abaxial faces strigillose to glabrate.

at tips of stems (usually surpassed by leaves).

at tips of stems.

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.

2–3 mm, faces hairy, hair tips glochidiform;

pappi persistent;

on ray cypselae ± 10 lanceolate scales 0.2–0.5(–1) mm;

on disc cypselae 20+ subulate scales 1–2.5(–4) mm.

= 18.

= 18.