Flora of North America species comparison

ascending to erect, 14–40(–60) cm, glabrous.

ascending to erect, 15–60 cm, glaucous.

basal and cauline, glabrous;

basal and proximal cauline 40–65(–110) × 8–20(–30) mm, blade obovate, base tapered, apex obtuse to acute, sometimes mucronate;

cauline 2–4 pairs, sessile, (9–)12–60 × 7–26 mm, blade lanceolate to ovate or elliptic, base tapered to clasping or cordate-clasping, apex obtuse to acute, sometimes mucronate.

glabrous or obscurely scabrous, especially along margins, glaucous;

basal and proximal cauline 35–80(–100) × 5–20 mm, blade oblanceolate, base tapered, margins entire, apex obtuse to acute;

cauline 2–4 pairs, sessile, 15–75 × 4–26 mm, blade elliptic to lanceolate, rarely ovate, base tapered, margins entire, apex acute.

interrupted or ± continuous, secund, sometimes cylindric, 5–23 cm, axis glabrous, verticillasters 4–8, cymes 1–3(or 4)-flowered;

proximal bracts ovate to lanceolate, (3–)7–38 × (1–)2–18 mm;

peduncles and pedicels glabrous, peduncles to 28 mm.

± interrupted, ± secund, 11–25 cm, axis glabrous, verticillasters 5–15, cymes 1–4-flowered;

proximal bracts lanceolate, 6–23 × 1–4 mm;

peduncles and pedicels erect, glabrous.

calyx lobes ovate to lanceolate, 5–6.7(–7.2) × 2–3(–3.7) mm, margins entire or erose, broadly scarious, glabrous;

corolla lavender to violet, blue, pinkish blue, or white, with or without reddish violet nectar guides, tubular-funnelform, 17–20(–22) mm, glabrous externally, sparsely white-villous internally abaxially or glabrous, tube 5–8 mm, throat gradually inflated, 5–6 mm diam., rounded abaxially;

stamens included or longer pair reaching orifice, pollen sacs opposite, 1.1–1.6 mm, sutures papillate;

staminode 8–9 mm, reaching orifice or slightly exserted, 0.6–1 mm diam., tip strongly recurved, distal 3–4 mm sparsely to densely villous, hairs mostly along margins, yellowish, to 1 mm;

style 10–12 mm.

calyx lobes ovate, 2.5–4(–5) × 1.5–4(–4.6) mm, margins erose, glabrous;

corolla red to crimson, with red nectar guides, bilaterally symmetric, bilabiate, tubular-salverform, 17–22(–25) mm, glandular-pubescent externally, especially distally, glandular-pubescent internally, tube 6–9 mm, throat slightly inflated, 6–7 mm diam., rounded abaxially;

stamens included, pollen sacs explanate, 0.6–1.1 mm, sutures smooth;

staminode 7–10 mm, flattened distally, 0.4–0.5 mm diam., tip recurved, glabrous, rarely distal 1 mm papillate, papillae golden yellow, to 0.1 mm;

style 10–14 mm.

9–12 × 5–7 mm.

7–10 × 5–7 mm.

3.5–5 mm.