Flora of North America species comparison

ascending to erect, 5–18 cm, puberulent to retrorsely hairy, usually in lines proximally, not glaucous.

ascending to erect, (5–)8–30 cm, retrorsely hairy, hairs white, scalelike.

deciduous, sometimes persistent, 2–6 pairs, distals seldom distinctly smaller than proximals, petiolate or sessile, (5–)10–42 × 4–15 mm, blade obovate to ovate, elliptic, or lanceolate, base tapered to clasping, margins ± crenulate-serrulate, apex obtuse to acute, glabrous, not glaucous.

± leathery or not, densely retrorsely hairy, hairs appressed, white, scalelike;

cauline 10–30 pairs, petiolate, 8–16 × 1.5–2.5 mm, blade oblanceolate, base tapered, apex mucronate.

continuous, cylindric to ± secund, 1–4 cm, axis glandular-pubescent, verticillasters 2–4, cymes 1-flowered;

proximal bracts ovate to lanceolate, (4–)8–25 × 3–17 mm;

peduncles and pedicels ascending to erect, glandular-pubescent.

interrupted or continuous, secund, (1–)2–9 cm, axis retrorsely hairy with appressed, white, scalelike hairs, verticillasters 2–13, cymes 1–4-flowered, 1 per node;

proximal bracts oblanceolate, 2–10 × 0.5–1.5 mm;

peduncles and pedicels spreading to ascending, retrorsely hairy with appressed, white, scalelike hairs, and sparsely glandular-pubescent.

calyx lobes lanceolate, 8–15 × (1.8–)2.5–3.7 mm, glandular-pubescent;

corolla violet to purple, unlined internally but abaxial ridges usually light violet to whitish, not personate, funnelform, 27–40 mm, glabrous externally, sparsely to moderately white-lanate internally abaxially, tube 5–8 mm, throat 8–11 mm diam.;

stamens included, pollen sacs 1.1–1.3 mm;

staminode 9–16 mm, flattened distally, 0.3–0.4 mm diam., tip straight, glabrous or distal 1–3(–13) mm sparsely to moderately villous, hairs yellow, to 1.3 mm;

style 25–28 mm.

calyx lobes ovate, 3.5–5.5 × 1.5–2 mm, scarious-margined, retrorsely hairy with appressed, white, scalelike hairs, and sparsely glandular-pubescent;

corolla purple to violet, lined internally abaxially with reddish purple nectar guides, tubular-funnelform, 14–18 mm, sparsely white-lanate internally abaxially, tube 5–6 mm, throat gradually inflated, 4.5–6 mm diam., 2-ridged abaxially;

stamens included, filaments glabrous or sparsely puberulent and sometimes with appressed, white, scalelike hairs proximally, pollen sacs opposite, navicular, 0.9–1.4 mm, sutures papillate;

staminode 7–9 mm, reaching orifice or exserted, flattened distally, 0.3–0.4 mm diam., tip straight to recurved, distal 4–5 mm pilose, hairs yellow, to 0.7 mm;

style 9–11 mm.

8–11 × 6–8 mm.

5–7 × 4–5 mm.

= 16.