Flora of North America species comparison

ascending to erect, 15–55(–82) cm, glabrous.

decumbent to ascending, (4–)7–18(–30) cm, glabrous.

basal and cauline, glabrous;

basal and proximal cauline 19–116(–150) × 3–23(–31) mm, blade spatulate to oblanceolate, base tapered, apex rounded to obtuse, acute, or mucronate;

cauline 3–9 pairs, sessile, 20–95 × 10–30 mm, blade ovate to lanceolate, base clasping to cordate-clasping, apex acute.

basal and cauline, glabrous;

basal and proximal cauline 21–50(–70) × 4–11(–17) mm, blade spatulate to oblanceolate, base tapered, apex rounded to obtuse, acute, or mucronate;

cauline 2–5 pairs, short-petiolate or sessile, 21–58 × 3–11 mm, blade lanceolate to oblanceolate, base tapered to clasping, apex obtuse to acute or mucronate.

interrupted, cylindric, (4–)10–35(–57) cm, axis glabrous, verticillasters 4–20(–35), cymes (2 or)3–5(–11)-flowered;

proximal bracts orbiculate to ovate, 15–70 × 5–31 mm;

peduncles and pedicels glabrous.

continuous, cylindric, 3–14 cm, axis glabrous, verticillasters 4–9, cymes (1 or)2–6-flowered;

proximal bracts oblanceolate to lanceolate, 13–60 × 5–16 mm;

peduncles and pedicels glabrous.

calyx lobes ovate, 3.5–6 × 1.5–2.5 mm, margins entire or erose, broadly scarious, glabrous;

corolla lavender to bluish lavender or pinkish blue, with reddish or reddish purple nectar guides, tubular-funnelform, (12–)14–20 mm, glabrous externally, glabrous internally, tube 5–7 mm, throat gradually inflated, 4–6 mm diam., rounded abaxially;

stamens included, pollen sacs opposite, 0.8–1.2 mm, sutures papillate;

staminode 7–9 mm, included or reaching orifice, 0.8–0.9 mm diam., tip recurved, distal 3–5 mm moderately to densely villous, hairs golden yellow, to 1.5 mm;

style 9–11 mm.

calyx lobes lanceolate, 4–6.2(–7.5) × 0.9–1.6 mm, margins entire or erose, narrowly scarious, glabrous;

corolla blue to violet, with reddish purple nectar guides, tubular-funnelform, (10–)12–15 mm, glabrous externally, sparsely white-pubescent internally abaxially or glabrous, tube 4–5 mm, throat gradually inflated, 4.5–5.5 mm diam., rounded abaxially;

stamens included, pollen sacs divergent, 0.7–0.8 mm, sutures smooth or obscurely papillate;

staminode 6–8 mm, included, 0.8–1 mm diam., tip recurved, distal 3–4 mm densely pubescent, hairs golden yellow, to 1 mm;

style 8–10 mm.

12–18(–20) × 7–11 mm.

6–10(–12) × 5–6 mm.

= 16.