Flora of North America species comparison

± erect;

internodes 0.1–1 mm, ± scabrellous to strigose.

decumbent to erect;

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

basal and cauline, blades ± spatulate to oblanceolate, 7–15(–35+) × 1–2(–4+) mm, not fleshy, faces ± scabrellous to strigose.

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

± campanulate, 8–14 mm diam.

± campanulate, 5–20 mm diam.

13–21;

corollas white adaxially, laminae 5–7+ mm, ± densely glandular-puberulent abaxially.

8–30+;

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

40–80+;

corollas 4.5–5+ mm.

(8–)20–80(–100+);

corollas 3.5–5 mm.

20–28 in 3–4+ series, the longer ± lanceolate, 4–8 mm (l/w = 2.5–5), sometimes glabrate, apices acute, abaxial faces usually sparsely strigillose.

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.

usually ± sessile, sometimes on scapiform peduncles 5–15+ mm.

at tips of stems (usually surpassed by leaves).

2–3(–4+) mm, faces hairy, hair tips glochidiform or forked;

pappi persistent;

on ray cypselae 20–24 subulate to setiform scales 3–4+ mm;

on disc cypselae 20–24 subulate to setiform scales 4–6(–8) mm.

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.

= 18.