Flora of North America species comparison

prostrate or ascending, 4–15(–25) cm, retrorsely hairy, hairs appressed, white, scalelike.

erect, 50–120 cm, glaucous.

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

cauline 1–5 pairs, petiolate, 6–25(–33) × 2–6.5 mm, blade obovate to spatulate, base tapered, apex mucronate, sometimes rounded or obtuse.

basal and proximal cauline 25–100 × (5–)10–35 mm, blade oblanceolate, base tapered, margins coarsely dentate, apex obtuse to acute;

cauline 3–5 pairs, sessile, 25–65 × 12–25 mm, blade lanceolate, base sessile, clasping or distal ones connate-perfoliate, margins coarsely dentate, apex acute.

continuous, secund, (1–)2–12 cm, axis retrorsely hairy, hairs appressed, white, scalelike, sometimes also glandular-pubescent distally, verticillasters (1–)3–12, cymes 1–3(–5)-flowered, 1 per node;

proximal bracts spatulate to oblanceolate, 5–19 × 1.5–4 mm;

peduncles and pedicels spreading to ascending, retrorsely hairy, hairs pointed, and, sometimes, sparsely glandular-pubescent.

interrupted, secund, 20–60 cm, axis glabrous, sometimes sparsely glandular-pubescent distally, verticillasters 10–16, cymes 2- or 3-flowered;

proximal bracts lanceolate, 15–60 × 4–22 mm;

peduncles and pedicels ascending to erect, glandular-pubescent.

calyx lobes lanceolate, 4–6 × 1–1.7 mm, herbaceous- or narrowly scarious-margined, sparsely glandular-pubescent and retrorsely hairy, hairs appressed, white, scalelike;

corolla blue to violet or purple, lined internally abaxially with reddish violet nectar guides, ampliate, 10–18 mm, yellow-lanate internally abaxially, tube 6–7 mm, throat gradually inflated, 4.5–6 mm diam., 2-ridged abaxially;

stamens reaching orifice or longer pair exserted, filaments glabrous, pollen sacs divergent, navicular, 0.8–1.2(–1.4) mm, sutures papillate;

staminode 8–9 mm, exserted, flattened distally, 0.2–0.3 mm diam., tip recurved, distal 6–8 mm pubescent, hairs yellow or orange, to 0.8 mm;

style 10–13 mm.

calyx lobes ovate, 4–5.5 × 2–2.7 mm, glandular-pubescent;

corolla pink to rose pink, with reddish nectar guides, strongly bilabiate, ventricose to ventricose-ampliate, (27–)30–35 mm, glandular-pubescent externally, sparsely white-lanate internally abaxially, not glandular-pubescent, tube 7–10 mm, length 1.8–2 times calyx lobes, throat gradually inflated, not constricted at orifice, 10–16 mm diam., rounded abaxially;

stamens included or longer pair exserted, filaments glabrous, pollen sacs navicular, 1.2–1.5 mm, sutures smooth;

staminode 22–24 mm, exserted, 0.4–0.6 mm diam., tip recurved, distal 6–7 mm pilose, hairs yellow or golden yellow, to 2 mm;

style 18–24 mm, glabrous.

3.5–5.5 × 3–4 mm.

7–11 × 4–6 mm, glabrous.