Flora of North America species comparison

± erect;

internodes 6–8(–25) mm, ± strigose.

± erect;

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

basal and cauline, blades spatulate to oblanceolate, 15–60(–120+) × 2–6(–10) mm (margins strigoso-ciliate), faces usually glabrous, sometimes sparsely 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).

hemispheric or broader, (8–)12–25+ mm diam.

hemispheric, (8–)10–14+ mm diam.

15–55+;

corollas usually blue adaxially, laminae 12–20 mm, glabrous abaxially.

20–40;

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

(60–)100–150+;

corollas (3.5–)4–5+ mm.

(60–)80–120+;

corollas 4–6 mm.

(30–)60–80+ in (4–)5–6+ series, the longer ± lanceolate, (7–)12–13+ mm (l/w = 3–5), apices acute to attenuate (most hard, apiculate), abaxial faces sparsely strigillose or glabrous.

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 ± leafy stems.

at tips of stems (usually surpassed by leaves).

3–4+ mm, faces ± hairy, hair tips forked or glochidiform;

pappi persistent;

on ray cypselae each a corona 0.1–0.5 mm;

on disc cypselae each of 8–12+ lanceolate scales 0.5–1 mm plus 1–2+ subulate to setiform scales 1–4 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.