Flora of North America species comparison

ascending to erect, 9–30(–35) cm, glabrous.

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

basal and cauline, basal not reduced, glabrous;

basal and proximal cauline 15–60(–90) × 8–25(–39) mm, blade oblanceolate to obovate, base tapered, apex rounded to obtuse, sometimes mucronate;

cauline 3–7 pairs, short-petiolate or sessile, (25–)35–80 × 10–20(–28) mm, blade lanceolate to ovate, base tapered to clasping, apex obtuse to acute.

± 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 or interrupted, cylindric, (4–)6–20 cm, axis glabrous, verticillasters (3–)5–10(–14), cymes 2–5-flowered;

proximal bracts ovate to lanceolate, (5–)13–56 × (2–)4–24 mm;

peduncles and pedicels glabrous, peduncles to 12 mm.

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 ovate, 5–8(–12) × 2–3.5 mm, margins entire or erose, broadly scarious, apex acuminate, glabrous;

corolla bluish lavender to lavender or pink, with dark reddish violet or reddish nectar guides, funnelform to ventricose, 15–22 mm, glabrous externally, sparsely white-villous internally abaxially or glabrous, tube 5–7 mm, throat gradually inflated, 5–8 mm diam., rounded abaxially;

stamens included, pollen sacs opposite, (1–)1.2–1.6 mm, sutures papillate;

staminode 8–10 mm, included or reaching orifice, 0.7–1 mm diam., tip strongly recurved, distal 2–5 mm densely villous, hairs yellowish, brownish, or orangish, to 1 mm;

style 10–12 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.

8–12 × 4–6 mm.

5–7 × 4–5 mm.

2–4 mm.