Flora of North America species comparison

± erect;

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

erect;

internodes (5–)10–15(–35) mm, strigillose.

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).

basal and cauline, blades spatulate to oblanceolate or lance-linear, 15–45(–75+) × 2–10(–20) mm, not fleshy (margins strigoso-ciliolate), glabrous or glabrate.

hemispheric, (8–)10–14+ mm diam.

± hemispheric or broader, 12–18+ mm diam.

20–40;

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

20–34+;

corollas usually white or pinkish adaxially (abaxially blue to lavender), laminae 10–15(–25+) mm, glabrous abaxially.

(60–)80–120+;

corollas 4–6 mm.

80–150+;

corollas 4 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.

30–45 in 4–6+ series, the longer obovate to lance-ovate or lanceolate, 10–12(–14) mm (l/w = 3–5), apices obtuse to acute (some or all hard, ± apiculate), abaxial faces sparsely strigillose or glabrous.

at tips of stems (usually surpassed by leaves).

at tips of stems (seldom surpassed by leaves).

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.

3–4(–5) mm, faces glabrous or ± stipitate-glandular, hair tips not forked or glochidiform;

pappi persistent, each a bidentate corona 0.1–0.4(–0.8) mm.

= 18.

= 18.