Flora of North America species comparison

decumbent to erect;

internodes (0.1–)2–12(–25+) mm, strigose.

basal and cauline, blades spatulate to oblanceolate, 15–35(–60+) × 2–5(–8+) mm, not fleshy, faces ± strigose or glabrate Heads at tips of stems (usually surpassed by leaves).

± hemispheric or broader, 12–25(–35+) mm diam.

21–67+;

corollas usually blue or purplish, rarely white or pinkish, adaxially, laminae 7–15(–20+) mm, glabrous abaxially.

150–200+;

corollas 4.5–6 mm.

40–64 in 4–7+ series, the longer ± lanceolate to lance-linear, 10–15+ mm (l/w = 4–6), apices acute to attenuate (soft, not apiculate), abaxial faces ± strigose or glabrous.

3–4.5+ mm, hairy, hair tips forked or entire;

pappi persistent, of 24–30+ subulate to setiform scales 3.5–4(–7.5) mm.

= 18.