Flora of North America species comparison

erect, 25–90 cm, glabrous or sparsely retrorsely hairy, slightly glaucous or not.

decumbent to ascending, 2–8 cm, retrorsely hairy, not glaucous.

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

basal and proximal cauline 30–180(–250) × 4–38(–70) mm, blade spatulate to obovate or lanceolate, base tapered, margins entire or ± serrate or denticulate, apex rounded to obtuse or acute;

cauline 5–8 pairs, petiolate or sessile, 26–195 × 4–55 mm, blade ovate to lanceolate, base tapered to clasping, margins entire or denticulate, apex acuminate to acute.

basal and cauline, not leathery, glabrous;

basal and proximal cauline 15–35 × 4–15 mm, blade lanceolate to elliptic or oblanceolate, base tapered, margins entire or serrulate, apex obtuse to acute;

cauline 3–7 pairs, petiolate, 10–20 × 3–5 mm, blade lanceolate to linear-lanceolate, base tapered to cuneate, margins entire or serrulate, apex obtuse to acute.

interrupted, conic, 7–26(–34) cm, axis glabrous proximally, sparsely to densely glandular-pubescent distally, verticillasters (2 or)3–6, cymes (3–)5–12(–18)-flowered, 2 per node;

proximal bracts lanceolate to linear, 9–105 × 1–40 mm, margins entire, sometimes serrulate;

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

continuous, ± secund, 1–3 cm, axis glandular-pubescent, verticillasters 1 or 2, cymes (1 or)2- or 3-flowered, 1 or 2 per node;

proximal bracts lanceolate, 10–20 × 4–8 mm, margins entire;

peduncles and pedicels ascending to erect, glandular-pubescent.

calyx lobes ovate, sometimes lanceolate, 4–8 × 2–3 mm, apex acute to acuminate, glandular-pubescent;

corolla white, sometimes tinged lavender, with reddish purple nectar guides, ventricose, (17–)20–30 mm, glandular-pubescent externally, sparsely to moderately white-pubescent internally abaxially, tube 6–9 mm, throat abruptly inflated, 8–12 mm diam., slightly 2-ridged abaxially;

stamens included or longer pair reaching orifice, pollen sacs opposite, navicular, 1.4–1.7 mm, dehiscing completely, connective splitting, sides sparsely pubescent, hairs white or purplish, to 0.6 mm, rarely glabrous, sutures papillate;

staminode 13–17 mm, reaching orifice, 0.3–0.4 mm diam., tip straight to slightly recurved, distal 6–8 mm sparsely to moderately villous, hairs yellowish, to 1.5(–2) mm;

style 13–18 mm.

calyx lobes lanceolate, 5–8 × 0.8–1.2 mm, glandular-pubescent;

corolla bluish lavender to lavender-purple, with violet nectar guides, tubular-funnelform, 12–25 mm, glandular-pubescent externally, densely white-lanate internally abaxially, tube 4–6 mm, throat gradually inflated, 6–8 mm diam., scarcely 2-ridged abaxially;

stamens included, pollen sacs opposite, subexplanate, 1.1–1.3 mm, dehiscing completely, connective splitting, sides sparsely puberulent, sutures smooth;

staminode 14–15 mm, exserted, 0.3–0.4 mm diam., tip slightly recurved, distal 0.8–1 mm sparsely lanate, hairs yellow, to 0.4 mm;

styles 10–15 mm.

8–14 × 4–6 mm, glabrous.

4–7 × 3–5 mm, glabrous.

= 96.