Flora of North America species comparison

prostrate, decumbent, ascending, or erect, 2–28 cm, retrorsely hairy or pubescent.

erect, (40–)60–120 cm, puberulent, at least proximally, slightly glaucous or not.

not leathery, glabrous, glabrate, scabrous, or pubescent, hairs pointed;

cauline (1 or)2–4 pairs, petiolate, (2–)4–47 × 0.5–8 mm, blade elliptic to obovate, oblanceolate, or linear, base tapered, apex acute to mucronate.

basal and cauline, basal often withering by anthesis, not leathery, glabrous;

basal and proximal cauline 47–110 × 10–24 mm, blade oblanceolate, base tapered, margins entire or ± serrate, apex rounded to obtuse;

cauline 3–7 pairs, sessile or proximals short-petiolate, (14–)44–155 × (2–)13–46 mm, blade lanceolate to ovate, proximals sometimes oblanceolate, base clasping or tapered, margins serrate, apex acute to acuminate.

continuous, ± secund, 1–8(–16) cm, axis retrorsely hairy, hairs pointed and, usually, sparsely glandular-pubescent, verticillasters (1 or)2–8, cymes 1–4-flowered, 1 or 2 per node;

proximal bracts oblanceolate to linear, 10–25 × 0.5–4 mm;

peduncles and pedicels ascending to erect, retrorsely hairy and, usually, sparsely glandular-pubescent.

interrupted, conic, (5–)14–20 cm, axis sparsely puberulent and glandular-pubescent, rarely glabrous, verticillasters 2–5, cymes (1–)5–15-flowered, 2 per node;

proximal bracts ovate to lanceolate, sometimes linear, 13–80 × (2–)5–32 mm, margins serrate, sometimes entire;

peduncles and pedicels spreading to ascending, sparsely glandular-pubescent.

calyx lobes lanceolate, 4–7(–7.5) × 0.9–1.8(–2.2) mm, broadly scarious-margined, apex acuminate to caudate, retrorsely puberulent, hairs pointed, and sparsely glandular-pubescent;

corolla blue to violet or lavender, lined internally abaxially with violet or reddish purple nectar guides, funnelform, 14–20 mm, sparsely to densely yellow-lanate or yellow-pilose internally abaxially, tube 6–8 mm, throat gradually inflated, 6–8 mm diam., 2-ridged abaxially;

stamens: longer pair reaching orifice, filaments glabrous, pollen sacs opposite, navicular to subexplanate, 0.9–1.4 mm, sutures papillate;

staminode 11–14 mm, reaching orifice or exserted, flattened distally, 0.3–0.4 mm diam., tip straight to recurved, distal 7–10 mm densely pilose, hairs golden yellow, to 1 mm;

style 13–15 mm.

calyx lobes lanceolate, 5–9 × 0.8–1.9 mm, apex acuminate, sparsely glandular-pubescent;

corolla pale lavender to violet, with faint violet nectar guides, ventricose, 20–35 mm, glandular-pubescent externally, ± white-pubescent internally abaxially, tube 5–7 mm, throat abruptly inflated, 8–11 mm diam., slightly 2-ridged abaxially;

stamens included or longer pair reaching orifice, pollen sacs opposite, navicular, 1.2–1.4 mm, dehiscing completely, connective splitting, sides glabrous, rarely sparsely pubescent, hairs white, to 0.2 mm, sutures papillate;

staminode 11–13 mm, reaching orifice, 0.2–0.3 mm diam., tip straight to slightly recurved, distal 2–5 mm sparsely pubescent, hairs yellowish, to 1 mm;

style 14–16 mm.

7–8 × 3.5–4.5 mm.

7–8 × 4–5 mm, glabrous.

= 96.