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 mm, ± villous.

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, ± spatulate to oblanceolate, 3–8(–18) × 1–2.5 mm (not fleshy), faces ± villous.

± campanulate, 5–20 mm diam.

± campanulate, 4–8 mm diam.

8–30+;

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

13–17;

corollas white adaxially, laminae 5–8 mm, glabrous abaxially.

(8–)20–80(–100+);

corollas 3.5–5 mm.

number unknown;

corollas 4 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.

ca. 26 in 3–4 series, the longer ± lanceolate, 5–8 mm (l/w = 3–5), apices acute, abaxial faces ± strigose to villous.

at tips of stems (usually surpassed by leaves).

± 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.

3–4 mm, faces glabrous or glabrate;

pappi readily falling, of 15–20 subulate to setiform scales 3–5 mm (± connate basally).

= 18.