Flora of North America species comparison

ascending to erect, 8–25(–40) cm, densely retrorsely hairy, not glaucous.

ascending to erect, 50–100(–150) cm, glabrous.

basal and cauline, or basal absent or reduced, not leathery, retrorsely hairy or glabrous, sometimes glabrescent, not glaucous;

basal and proximal cauline 30–75(–100) × 2–18(–27) mm, blade oblanceolate to elliptic, base tapered, margins entire, apex obtuse to acute;

cauline 2–4 pairs, sessile, rarely short-petiolate, 22–77 × 3–10(–15) mm, blade lanceolate, proximals sometimes oblanceolate, base tapered to truncate, apex acute.

basal and cauline, glabrous;

basal and proximal cauline 40–100 × (8–)14–30 mm, blade spatulate to ovate, base tapered, apex rounded to obtuse, rarely retuse;

cauline 5–9 pairs, sessile, 12–110 × 16–70 mm, blade oblong to ovate, base clasping to connate-perfoliate, apex obtuse to acute.

interrupted to ± continuous, cylindric, (3–)8–22(–28) cm, axis moderately to densely retrorsely hairy, verticillasters (5–)7–15, cymes (1 or)2- or 3-flowered, 2 per node;

proximal bracts lanceolate, 16–50(–63) × 3–10 mm;

peduncles and pedicels retrorsely hairy.

interrupted, cylindric, 15–50 cm, axis glabrous, verticillasters 6–10(–16), cymes 1–5-flowered;

proximal bracts ovate, 9–45 × 14–40 mm;

peduncles and pedicels glabrous.

calyx lobes ovate, (3–)4–6.8 × 1.7–2.8 mm, glabrous, rarely ± puberulent;

corolla blue to violet or purple, with violet nectar guides, funnelform, (12–)14–23(–28) mm, glabrous externally, glabrous internally, tube 6–8 mm, throat gradually inflated, not constricted at orifice, 6–9 mm diam., rounded abaxially;

stamens included, pollen sacs divergent, navicular, (1–)1.2–1.5(–1.8) mm, dehiscing incompletely, proximal 1/4 indehiscent, connective not splitting, sides sparsely to moderately hispid, hairs white or tan, to 0.4(–1) mm, sutures papillate or denticulate, teeth to 0.1 mm;

staminode 10–12 mm, included, 0.8–1.1 mm diam., tip recurved, distal 5–7 mm sparsely pilose, hairs yellow, to 1 mm;

style 12–15 mm.

calyx lobes lanceolate, 4.5–7 × 1.8–2.9 mm, margins entire, narrowly scarious, glabrous;

corolla red, without nectar guides, tubular-funnelform, 32–36 mm, glabrous externally, glabrous internally, tube 8–11 mm, throat abruptly inflated, 9–12 mm diam., rounded abaxially;

stamens exserted, pollen sacs opposite, explanate, 1.3–1.7 mm, sutures smooth;

staminode 18–20 mm, exserted, 0.2–0.3 mm diam., tip straight to recurved, glabrous;

style 24–31 mm.

7–10 × 5–6 mm.

9–13 × 6–10 mm.