Flora of North America species comparison

decumbent to erect, 5–70(–90) cm, glabrous or sparsely to densely puberulent, not glaucous.

ascending to erect, 9–30(–35) cm, glabrous.

basal and cauline, ± leathery or not, glabrous or basal ones sparsely to densely puberulent, not glaucous;

basal and proximal cauline (20–)45–160 × 3–40(–55) mm, blade obovate to oblanceolate, base tapered, margins entire, apex obtuse to acute;

cauline 1–6 pairs, sessile or proximals short- to long-petiolate, 16–100 × 5–45(–60) mm, blade ovate or oblanceolate to lanceolate, base cordate-clasping to clasping, apex obtuse to acute.

basal and cauline, basal not reduced, glabrous;

basal and proximal cauline 15–60(–90) × 8–25(–39) mm, blade oblanceolate to obovate, base tapered, apex rounded to obtuse, sometimes mucronate;

cauline 3–7 pairs, short-petiolate or sessile, (25–)35–80 × 10–20(–28) mm, blade lanceolate to ovate, base tapered to clasping, apex obtuse to acute.

continuous or interrupted, cylindric to subsecund, 2–30 cm, axis glabrous, verticillasters 2–12, cymes 3–7-flowered, 2 per node;

proximal bracts ovate to lanceolate, 7–80 × (1–)3–35 mm;

peduncles and pedicels glabrous, peduncles to 20 mm, pedicels 1–9 mm.

continuous or interrupted, cylindric, (4–)6–20 cm, axis glabrous, verticillasters (3–)5–10(–14), cymes 2–5-flowered;

proximal bracts ovate to lanceolate, (5–)13–56 × (2–)4–24 mm;

peduncles and pedicels glabrous, peduncles to 12 mm.

calyx lobes ovate to lanceolate, 3–6.5 × 1.3–2.6 mm, apex acute to acuminate or cuspidate, glabrous;

corolla blue to violet, without nectar guides, ventricose, 12–25(–28) mm, glabrous externally, glabrous internally, tube 6–11 mm, throat gradually inflated, not constricted at orifice, 6–11 mm diam., 2-ridged abaxially;

stamens included or longer pair reaching orifice, pollen sacs divergent, navicular, 1.2–2(–2.2) mm, dehiscing incompletely, proximal 1/4–1/3 indehiscent, connective not splitting, sides hispid, hairs white, to 0.5 mm, sutures denticulate, teeth to 0.1 mm;

staminode 11–14 mm, included or reaching orifice, 0.3–0.6 mm diam., tip straight to recurved, distal 6–9 mm sparsely to moderately pilose to lanate, hairs orange, yellow, or white, to 1 mm;

style 9–16 mm.

calyx lobes ovate, 5–8(–12) × 2–3.5 mm, margins entire or erose, broadly scarious, apex acuminate, glabrous;

corolla bluish lavender to lavender or pink, with dark reddish violet or reddish nectar guides, funnelform to ventricose, 15–22 mm, glabrous externally, sparsely white-villous internally abaxially or glabrous, tube 5–7 mm, throat gradually inflated, 5–8 mm diam., rounded abaxially;

stamens included, pollen sacs opposite, (1–)1.2–1.6 mm, sutures papillate;

staminode 8–10 mm, included or reaching orifice, 0.7–1 mm diam., tip strongly recurved, distal 2–5 mm densely villous, hairs yellowish, brownish, or orangish, to 1 mm;

style 10–12 mm.

7–15 × 5–10 mm.

8–12 × 4–6 mm.

2–4 mm.