Flora of North America species comparison

± erect;

internodes 6–8(–25) mm, ± strigose.

decumbent to erect;

internodes 5–20+ 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 oblanceolate to lance-linear, 20–45(–60+) × 2–4(–6+) mm, not fleshy, faces ± strigose.

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

± campanulate to hemispheric, 12–15(–20+) mm diam.

15–55+;

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

25–40+;

corollas white or purplish adaxially, laminae 9–18 mm, abaxially usually glabrous, sometimes glandular-puberulent.

(60–)100–150+;

corollas (3.5–)4–5+ mm.

80–120+;

corollas 3.5–5 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.

40–44 in 4–5+ series, the longer ± lanceolate, 5–9+ mm (l/w = 2.5–5), apices acute to attenuate (soft, not apiculate), abaxial faces strigose.

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 glochidiform;

pappi persistent;

on ray cypselae ± 20 lanceolate to subulate scales 0.5–0.8(–2+) mm;

on disc cypselae 16–24 subulate to setiform scales 5 mm.

= 18.