Flora of North America species comparison

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

prostrate (mat-forming, densely leafy), 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).

oblong-oblanceolate to obovate, 3–17 × 1.5–4 mm wide, margins with 2–6 pairs of setae 1–2 mm, faces glabrous (dotted with scattered, round oil-glands 0.1–0.2 mm).

1–5 mm.

1–12 mm.

cylindric.

campanulate.

3(–4);

corollas 3–4 mm (scarcely surpassing phyllaries).

5;

corollas 3.5–5 mm.

(3–)7–14;

corollas 2.2–2.6 mm (2-lipped).

12–21;

corollas 2.5–3.5 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, obovate, 4.5–6 × 2–4 mm (faces densely dotted with scattered, circular oil-glands 0.05–0.2 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.

2.5–4 mm, mostly puberulent (ray cypselae abaxially glabrous);

ray pappi of 2–3 slender, aristate scales 1.5–2.5 mm plus 2–10 lacerate scales or bristles;

disc pappi of 4–15, antrorsely scabrid bristles or aristate scales 2–3 mm plus 0–15 bristles or scales.

= 48.

= 72.