Flora of North America species comparison

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

ascending to erect, 40–100 cm, glabrous or retrorsely hairy, not glaucous.

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.

glabrous or retrorsely hairy, not glaucous;

basal and proximal cauline 50–100(–200) × 15–28(–50) mm, blade obovate to elliptic, base tapered, margins entire, apex obtuse to acute;

cauline 3–5 pairs, short-petiolate or sessile, 24–90(–145) × 8–28 mm, blade ovate or lanceolate, proximals sometimes oblanceolate, base tapered to cordate-clasping, apex acute, rarely obtuse.

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.

secund, (9–)25–45 cm, axis glabrous or retrorsely hairy, verticillasters 4–12, cymes 1- or 2(–4)-flowered;

proximal bracts lanceolate, 6–49 × 1–8 mm;

peduncles and pedicels erect, sometimes ascending, glabrous or sparsely puberulent.

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 ovate, (2.5–)3–5(–6) × 1.8–3 mm, margins erose, rarely entire, glabrous;

corolla red to scarlet, essentially without nectar guides, nearly radially symmetric, weakly bilabiate, tubular, 24–30(–33) mm, glabrous internally, tube 6–10 mm, throat 5–7(–9) mm diam., not constricted at orifice, rounded abaxially, abaxial lobes projecting to barely spreading, adaxial lobes projecting to barely spreading;

stamens included, reaching orifice, or exserted, pollen sacs parallel, proximal 1/4–1/2 indehiscent, (1.4–)1.8–2.4(–2.8) mm, sides glabrous or obscurely hispidulous with tan enations less than 0.1 mm, sutures papillate or denticulate, teeth to 0.1 mm;

staminode 14–17 mm, included, tip straight, glabrous or distal 1–4 mm sparsely to densely pubescent, hairs yellow, to 1 mm;

style 23–27 mm, usually exserted.

7–10 × 5–6 mm.

10–14 × 4–8 mm.