Flora of North America species comparison

ascending to erect, 20–80 cm, glabrous, sometimes ± puberulent, hairs pointed, glaucous.

ascending to erect, 10–45(–52) cm, glabrate or retrorsely hairy proximally, glandular-pubescent distally.

basal and cauline, basal sometimes few, opposite, glabrous, sometimes proximals puberulent, hairs pointed, glaucous;

basal and proximal cauline 15–80 × 2–10 mm, blade spatulate to oblanceolate, base tapered, margins entire, apex rounded to obtuse or acute;

cauline 4–6 pairs, sessile, 20–80 × 3–9 mm, blade ovate to lanceolate, base tapered, margins entire, apex acute.

basal and cauline, not leathery, glabrous or retrorsely hairy along midvein, especially adaxially;

basal and proximal cauline petiolate, 20–80(–105) × (2–)5–10(–13) mm, blade oblanceolate to lanceolate or linear, base tapered, margins entire or serrate, apex obtuse to acute;

cauline 3–6 pairs, sessile, 20–100(–110) × 5–15 mm, blade lanceolate to linear, base tapered to slightly clasping, margins entire or remotely dentate to remotely serrate, apex acute, rarely obtuse.

interrupted, cylindric, 5–25 cm, axis glandular-pubescent, verticillasters 4–6, cymes 1–3-flowered, 2 per node;

proximal bracts ovate to lanceolate, 4–50 × 1–8 mm;

peduncles and pedicels ascending, glandular-pubescent.

continuous or interrupted, secund, 5–20(–24) cm, axis densely glandular-pubescent, verticillasters 2–8, cymes 2–5-flowered, 2 per node;

proximal bracts lanceolate, (9–)25–90 × (1–)3–15 mm;

peduncles and pedicels densely glandular-pubescent.

calyx lobes ovate to lanceolate, 3.8–6 × 1.5–2.2 mm, glandular-pubescent;

corolla violet to blue or purple, without nectar guides, ventricose to ventricose-ampliate, 25–38 mm, glandular-pubescent externally, glabrous internally, tube 7–9 mm, throat gradually inflated, 8–10 mm diam., 2-ridged abaxially;

stamens included, filaments glabrous, pollen sacs parallel, 2.4–3.2 mm, distal 1/5–1/3 indehiscent, sides pilose to lanate, hairs white, to 0.6 mm near filament attachment, sutures denticulate, teeth to 0.2 mm;

staminode 11–15 mm, included, 0.4–0.6 mm diam., glabrous;

style 15–20 mm.

calyx lobes ovate to lanceolate, 8–12 × 2–3 mm, glandular-pubescent;

corolla white to lavender, pink, or violet, with magenta or violet-blue nectar guides, ventricose, 24–32(–35) mm, moderately to densely white-pilose and glandular-pubescent internally abaxially, tube 8–10 mm, throat abruptly inflated, slightly constricted at orifice, 9–15 mm diam., rounded abaxially;

stamens included, pollen sacs opposite, explanate, 1–1.2 mm, dehiscing completely, sutures smooth;

staminode 14–17 mm, prominently exserted, 0.3–0.4 mm diam., tip recurved, distal 10–14 mm lanate, hairs yellow, to 3.5 mm, and medial hairs shorter, stiffer, and retrorse;

style 17–18 mm.

7–9 × 4–5 mm.

10–16 × 5–7 mm.

= 64.

= 16.