Flora of North America species comparison

± erect;

internodes 0.1–1 mm, ± scabrellous.

± erect;

internodes 6–8(–25) mm, ± strigose.

basal and cauline, ± spatulate to oblanceolate, 15–50(–80) × 2–6(–11) mm, little, if at all, fleshy, faces ± scabrellous.

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

± hemispheric to campanulate, 10–15 mm diam.

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

12–21;

corollas white adaxially, laminae 6–12+ mm, glabrous abaxially.

15–55+;

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

60–80+;

corollas 3.5–5 mm.

(60–)100–150+;

corollas (3.5–)4–5+ mm.

14–26 in 2–3+ series, the longer lance-ovate to lanceolate, 9–11 mm (l/w = 3–5), apices attenuate, abaxial faces piloso-strigose to strigose.

(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.

on scapiform peduncles 30–80(–120) mm.

at tips of ± leafy stems.

2.5–3.5 mm, faces hairy, hair tips entire;

pappi persistent, 16–20+ lanceolate to subulate scales 0.2–0.8 mm (± connate).

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.

= 18.