Flora of North America species comparison

prostrate to ascending (often mat-forming, densely leafy distally), puberulent (in decurrent lines or throughout) or glabrate.

decumbent to erect (very leafy), glabrous or puberulent (in decurrent lines).

(bluish green) linear to linear-oblanceolate or narrowly oblong, 10–30 × 1.5–4 mm, margins with 2–5 pairs of setae 1–2 mm, faces glabrous (abaxial densely dotted with scattered, circular oil-glands 0.05–0.2 mm).

linear, 10–50 × 1–3 mm, margins with 2–6 pairs of setae, faces glabrous (abaxial dotted submarginally with round oil-glands 0.2–0.5 mm).

1–5 mm.

0–1 mm.

cylindric.

narrowly campanulate to cylindric.

3(–4);

corollas 3–4 mm (scarcely surpassing phyllaries).

5;

corollas 4.5–5.5 mm.

(3–)7–14;

corollas 2.2–2.6 mm (2-lipped).

4–10;

corollas 2.5–3 mm (2-lipped).

coherent (falling together), oblong to oblong-obovate, 6–10 × 2–3 mm (dotted with scattered, elliptic oil-glands 0.05–0.15 mm).

distinct, linear or linear-oblanceolate, 5–6 × 1–1.5 mm (dotted with scattered, elliptic oil-glands 0.4–0.5 mm).

borne singly or in congested, (leafy) cymiform arrays.

borne singly or in congested, (leafy) cymiform arrays.

4–5.5 mm, puberulent (distally glandular-puberulent);

pappi of 2 (ray) and 5 (disc) lanceolate scales 1.5–3.5 mm.

2.25–3.25 mm, puberulent;

pappi (ray and disc similar) of 2–5 antrorsely barbed bristles or awns 1.5–2.5 mm plus shorter, barbellate scales.

= 48.

= 48.