Flora of North America species comparison

erect, (10–)18–90(–130) cm, glabrous proximally, usually sparsely glandular distally, not glaucous.

erect, 25–85(–100) cm, glabrous, not glaucous.

basal and cauline, not leathery, glabrous, not glaucous;

basal and proximal cauline 35–140(–170) × 8–24 mm, blade oblanceolate, sometimes lanceolate, base tapered, margins entire, apex obtuse to acute;

cauline 3–6(–11) pairs, short-petiolate or sessile, 28–95(–130) × 4–15 mm, blade oblanceolate to lanceolate, base tapered to clasping, apex acute.

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

basal and proximal cauline 25–110 × 6–38 mm, blade spatulate to ovate, base tapered, margins entire or ± serrate, apex rounded to obtuse;

cauline 5–8(–10) pairs, sessile, 15–100(–135) × 4–20(–38) mm, blade ovate to lanceolate, base tapered to clasping, margins entire or ± serrate, apex acute to acuminate.

interrupted, secund, (4–)12–38 cm, axis glabrous or glandular-pubescent, verticillasters 4–12, cymes 1–3(–6)-flowered, 2 per node;

proximal bracts lanceolate, (3–)15–75 × (1–)2–22 mm;

peduncles and pedicels glandular-pubescent, sometimes sparsely so.

interrupted, cylindric, 8–30(–40) cm, axis glandular-pubescent, verticillasters 4–8(–12), cymes 3–9-flowered, 2 per node;

proximal bracts ovate to lanceolate, 9–50 × 2–10 mm, margins entire or ± serrulate;

peduncles and pedicels ascending to erect, glabrous or glandular-pubescent.

calyx lobes ovate to lanceolate, 4.5–7.5 × (1.5–)2.1–2.8 mm, glandular-pubescent;

corolla blue to violet or purple, with violet nectar guides, ventricose, 19–28 mm, ± glandular-pubescent externally, glabrous internally, tube 6–10(–11) mm, throat gradually inflated, not constricted at orifice, 7–10 mm diam., rounded abaxially;

stamens included or longer pair reaching orifice, pollen sacs opposite, navicular, 1.6–2 mm, dehiscing incompletely, connective not splitting, sides sparsely to moderately hispid or pubescent, hairs white, to 0.2 mm, sutures denticulate, teeth to 0.1 mm;

staminode 13–16 mm, reaching orifice or slightly exserted, 0.6–0.8 mm diam., tip straight, distal 2–3 mm sparsely villous, hairs yellow, to 0.7 mm;

style 14–18 mm.

calyx lobes ovate, 2.5–5 × 1.5–2.5 mm, glandular-pubescent;

corolla white, without nectar guides, funnelform, 15–22 mm, glandular-pubescent externally, glandular-pubescent internally, tube slightly differentiated, 5–7 mm, throat slightly inflated, 4–6 mm diam., rounded abaxially;

stamens included or longer pair reaching orifice, pollen sacs divergent, explanate, 0.8–1 mm, dehiscing completely, connective splitting, sides glabrous, sutures smooth;

staminode 9–11 mm, included or reaching orifice, 0.2–0.3 mm diam., tip recurved, distal 3–4 mm sparsely villous, hairs yellowish or brownish yellow, to 0.8 mm;

style 10–12 mm.

8–12 × 5–6 mm.

7–10 × 3–5 mm, glabrous.

= 16.

= 32.