Flora of North America species comparison

± erect;

internodes 0.1–1 mm, ± scabrellous.

decumbent to erect;

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

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

basal and cauline, blades narrowly oblanceolate to linear, 6–20(–35) × 1–2(–3.5) mm, not fleshy, faces piloso-strigose to strigose.

± hemispheric to campanulate, 10–15 mm diam.

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

12–21;

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

10–25+;

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

60–80+;

corollas 3.5–5 mm.

(20–)40–80;

corollas 2–3.5+ 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.

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.

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

at tips of stems (usually surpassed by leaves).

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

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

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.

= 18.