Flora of North America species comparison

ascending, 13–40 cm, glabrous or retrorsely hairy, usually in lines, not glaucous.

ascending, 5–15(–24) cm, glabrous, not glaucous.

persistent, 2–6 pairs, distals usually distinctly smaller than proximals, petiolate or sessile, (5–)6–50(–60) × 3–12 mm, blade lanceolate to oblanceolate or elliptic, base tapered to clasping, margins entire or ± serrate, or dentate, apex obtuse to acute, glabrous, not glaucous.

basal and cauline, ± leathery or not, glabrous, not glaucous;

basal and proximal cauline (12–)20–60(–100) × (2–)4–12 mm, blade oblanceolate, base tapered, margins entire, apex obtuse to acute;

cauline 2–4 pairs, sessile, (10–)15–45 × 1–4(–6) mm, blade lanceolate to linear, base tapered, apex acute.

continuous to ± interrupted, secund, 3–11 cm, axis sparsely glandular-pubescent, sometimes also retrorsely hairy proximally, verticillasters 2–7, cymes 1-flowered;

proximal bracts lanceolate, 4–16 × 1–5 mm;

peduncles and pedicels ascending to erect, glandular-pubescent.

continuous, secund, (1–)3–15 cm, axis ± glandular-pubescent, verticillasters 3–7, cymes 1(or 2)-flowered, 2 per node;

proximal bracts oblanceolate to lanceolate or linear, 9–50 × 1.5–4 mm;

peduncles and pedicels glandular-pubescent, sometimes sparsely so.

calyx lobes lanceolate to linear, (7–)9–13(–15) × 1.8–3 mm, glandular-pubescent;

corolla bluish lavender to purplish or violet, unlined internally or lined with faint bluish lavender nectar guides abaxially, not personate, funnelform, 28–48 mm, glabrous externally, sparsely to moderately white-lanate or -villous internally abaxially, tube (5–)8–10 mm, throat 8–13 mm diam.;

stamens included, pollen sacs 1–1.3(–1.5) mm;

staminode 7–12 mm, slightly flattened distally, 0.1–0.3 mm diam., tip straight to recurved, distal 1–4 mm sparsely to densely pubescent, hairs yellow, to 1.2 mm;

style 24–27 mm.

calyx lobes ovate, (3–)4–6.5(–7) × 2.5–3.5 mm, glandular-pubescent;

corolla blue to violet, without nectar guides, ventricose, 17–24 mm, glandular-pubescent externally, glabrous internally, tube 5–8 mm, throat gradually inflated, not constricted at orifice, 5–8 mm diam., rounded abaxially;

stamens included or longer pair reaching orifice, pollen sacs divergent, navicular, (0.8–)1–1.4 mm, dehiscing incompletely, connective not splitting, sides hispid, hairs white, to 0.3 mm, sutures denticulate, teeth to 0.1 mm;

staminode 10–12 mm, included, 0.2–0.4 mm diam., tip straight, distal 6–8 mm moderately to densely pilose, hairs yellow or yellow-orange, to 1 mm;

style 10–12 mm.

8–13 × 5.5–7 mm.

8–10.5 × 4.5–7 mm.