Flora of North America species comparison

ascending to erect, 10–27 cm, retrorsely hairy or puberulent, not glaucous.

prostrate or ascending, 2–10 cm, cinereous, retrorsely hairy, hairs pointed.

persistent, 6–9 pairs, distals usually distinctly smaller than proximals, short-petiolate or sessile, 15–55 × 4–16 mm, blade elliptic, base tapered, margins subentire or serrate, apex rounded to obtuse or acute, glabrous, ± glaucous.

not leathery, cinereous, densely retrorsely hairy, hairs pointed;

cauline 5–9 pairs, sessile, 4–14 × 0.5–1.4 mm, blade linear, base tapered, apex mucronate, sometimes acuminate.

± interrupted, secund, 5–14 cm, axis retrorsely hairy proximally, retrorsely hairy and glandular-pubescent distally, verticillasters 3–7, cymes 1-flowered;

proximal bracts ovate to lanceolate, 6–18 × 3–12 mm, margins serrate, sometimes entire;

peduncles and pedicels ascending to erect, glandular-pubescent, sometimes also puberulent.

continuous, cylindric, 3–15 cm, axis retrorsely hairy to retrorsely cinereous, hairs pointed, verticillasters 1–8, cymes 1 or 2(or 3)-flowered, 1 per node;

proximal bracts linear, 6–15 × 0.6–1.5 mm;

peduncles and pedicels ascending to erect, retrorsely cinereous, hairs pointed, and, sometimes, sparsely glandular-pubescent.

calyx lobes ovate to lanceolate, 8–14 × 2–3.1 mm, glandular-pubescent;

corolla purple to violet, essentially unlined internally but abaxial ridges usually light purple or white, not personate, funnelform, (25–)30–38 mm, glabrous externally, sparsely white-lanate internally abaxially, tube 6–8 mm, throat 9–10 mm diam.;

stamens included, pollen sacs 1.5–1.7 mm;

staminode 11–13 mm, essentially terete distally, 0.1 mm diam., tip straight, distal 4–6 mm moderately to densely villous, hairs white or yellowish, to 1.5 mm;

style 25–29 mm.

calyx lobes lanceolate, (3–)4–6 × 0.7–1 mm, narrowly scarious-margined, retrorsely hairy, hairs pointed, and sparsely glandular-pubescent;

corolla blue or violet, lined internally abaxially with reddish violet nectar guides, funnelform, 15–19 mm, sparsely white- or yellowish lanate internally abaxially, tube 6–7 mm, throat gradually inflated, 4–5.5 mm diam., 2-ridged abaxially;

stamens: longer pair reaching orifice, filaments glabrous, pollen sacs opposite, navicular to subexplanate, 0.7–1 mm, sutures papillate;

staminode 8–9 mm, included or reaching orifice, flattened distally, 0.2–0.3 mm diam., tip straight to recurved, distal 6–7 mm pilose, hairs yellowish orange, to 0.7 mm;

style 13–16 mm.

8–11 × 4–6 mm.

3.3–4.5 × 2.8–3.6 mm.

= 16.

= 16.