Flora of North America species comparison

ascending or procumbent, 10–30 cm.

usually procumbent or prostrate, sometimes decumbent, 10–30+ cm.

distichous, distals ± spreading;

blade elliptic, lanceolate, oblong, or ovate, 4–25 × 2–10 mm, surfaces: abaxial densely hairy, adaxial sparsely hairy or glabrate.

blade usually ovate, rarely lanceolate or ± orbiculate, 8–25 × 5–15 mm.

flowers solitary;

peduncles plus pedicels stout, 0–2(–4) mm.

2- or 3-flowered or flowers solitary;

peduncles plus pedicels filiform, 10–25+ mm.

sepals oblong to lanceolate, 3–5 mm;

corolla pale blue, violet, or white, rotate to broadly funnelform, limb 7–12 mm diam. 2n = 26 (Argentina).

sepals lanceolate, lanceolate-ovate, or oblong, 2.5–3.5 mm;

corolla pale blue or white, campanulate or rotate, limb 8–10 mm diam.