Flora of North America species comparison

ascending or procumbent, 10–30 cm.

ascending to erect, 10–15+ cm, internodes rarely 4+ mm.

distichous, distals ± spreading;

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

pentastichous, distals ± antrorse;

blade usually elliptic, sometimes linear-oblong or narrowly lanceolate to oblanceolate, rarely oblong, 8–20 × 1.5–5 mm, surfaces densely hairy.

flowers solitary;

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

flowers solitary;

peduncles plus pedicels stout, 1–2(–4) 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 to narrowly lanceolate, 4–5 mm;

corolla blue, purple, or lavender, rotate to broadly campanulate, limb 8–12 mm diam., margins subentire.