Flora of North America species comparison

± erect;

internodes 6–8(–25) mm, ± strigose.

± erect;

internodes 0.1–1 mm, ± pilose.

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 narrowly oblanceolate to lance-linear, 5–40+ × 0.6–2.5+ mm, not fleshy, faces ± strigoso-sericeous to strigose.

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

± campanulate, 7–10 mm diam.

15–55+;

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

13–21+;

corollas white adaxially, laminae 4–8+ mm, glandular-puberulent abaxially.

(60–)100–150+;

corollas (3.5–)4–5+ mm.

40–60+;

corollas (3.5–)4.5–6 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.

25–50+ in 4–5+ series, the longer narrowly lanceolate, 6–8+ mm (l/w = 5–6), apices acute, abaxial faces sparsely strigillose or glabrate.

at tips of ± leafy stems.

± sessile.

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.

3–3.5 mm, faces hairy, hair tips glochidiform;

pappi persistent;

on ray cypselae 15–35 subulate to setiform scales 0.5–1.5 or 4–5 mm;

on disc cypselae 15–35 subulate to setiform scales 4–6.5 mm.