Flora of North America species comparison

± erect;

internodes 6–8(–25) mm, ± strigose.

decumbent to erect;

internodes 5–10(–20+) mm, pilose to strigose (surfaces seldom hidden by hairs).

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 linear, 6–20(–35) × 1–2(–3.5) mm, not fleshy, faces piloso-strigose to strigose.

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

± campanulate to hemispheric, (5–)7–13 mm diam.

15–55+;

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

10–25+;

corollas white or pinkish adaxially, laminae 5–10 mm, usually glabrous, sometimes glandular-puberulent abaxially.

(60–)100–150+;

corollas (3.5–)4–5+ mm.

(20–)40–80;

corollas 2–3.5+ 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.

22–40+ in 4–5 series, the longer ± lance-ovate to lanceolate, 5–8 mm (l/w = 2.5–5), apices acute, 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.

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

pappi persistent;

on ray cypselae 12–20(–30) lanceolate to subulate scales 0.2–0.5(–1.5) mm;

on disc cypselae 15–25+ subulate to setiform scales 2.5–3+ mm.