Flora of North America species comparison

decumbent to erect;

internodes 5–25 mm, piloso-strigose to strigillose (surfaces seldom hidden by hairs).

± erect;

internodes 0.1–1(–2) mm, strigose.

basal and cauline, blades spatulate to oblanceolate or linear, 12–30(–50) × 2–7(–9) mm, not fleshy, faces ± strigose to strigillose.

basal and cauline, blades ± spatulate to oblanceolate, 10–35+ × 2–5+ mm, not fleshy, faces usually ± strigose, sometimes glabrous.

± campanulate, 5–20 mm diam.

hemispheric to campanulate, 8–15 mm diam.

8–30+;

corollas white or pinkish adaxially, laminae 5–14 mm, abaxially usually glabrous, sometimes glandular-puberulent.

13–21+;

corollas usually white, sometimes pink or blue, adaxially, laminae 6–12 mm, abaxially usually glandular-puberulent, sometimes glabrous.

(8–)20–80(–100+);

corollas 3.5–5 mm.

30–60+;

corollas 3.5–5.5 mm.

20–24 in 3–4+ series, the longer ± lance-ovate to lanceolate, 5–9 mm (l/w = 2.5–5), apices acute to acuminate, abaxial faces strigose.

18–32 in 3–4+ series, the longer ± oblanceolate, 6–9 mm (l/w = 3–5), glabrate, or sparsely strigillose, apices obtuse to acute, abaxial faces glabrous.

at tips of stems (usually surpassed by leaves).

usually on scapiform peduncles 5–60+ mm, sometimes sessile.

3–4 mm, faces hairy, hair tips glochidiform;

pappi persistent;

on ray cypselae 12–20+ lanceolate to subulate scales 0.5–1.5+ mm;

on disc cypselae 20–35 subulate to setiform scales 3.5–5.5 mm.

4.5 mm, faces glabrous or hairy at bases, hair tips glochidiform;

pappi persistent;

on ray cypselae 24–30+ subulate to setiform scales 5–6 mm;

on disc cypselae 24–30+ subulate to setiform scales 5.5–6.6 mm.

= 18.

= 18, 36.