Flora of North America species comparison

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

ascending to erect, 4–55(–80) 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, not leathery, glabrous, not glaucous;

basal and proximal cauline (20–)30–100 × 4–15(–20) mm, blade oblanceolate, base tapered, margins entire, apex obtuse to acute;

cauline 2–7 pairs, sessile or proximals sometimes short-petiolate, 16–80 × 2–20 mm, blade lanceolate to linear, base tapered, apex obtuse to 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.

interrupted or continuous, secund, (1–)3–30(–40) cm, axis glandular-pubescent, verticillasters 2–8(–12), cymes 1–3(or 4)-flowered, (1 or)2 per node;

proximal bracts lanceolate, (6–)10–60 × (1–)3–24 mm;

peduncles and pedicels glandular-pubescent.

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 lanceolate, (3.8–)4.5–8.5 × 1.6–3.8 mm, glandular-pubescent;

corolla violet to blue or purple, with violet or reddish purple nectar guides, ventricose, 18–35 mm, glandular-pubescent externally, glabrous or white-lanate internally abaxially, glandular-pubescent adaxially, tube 6–10 mm, throat gradually inflated, not constricted at orifice, 5–10 mm diam., 2-ridged abaxially;

stamens: longer pair reaching orifice, pollen sacs divergent to nearly opposite, navicular, 1.2–2 mm, dehiscing incompletely, proximal 1/5 indehiscent, connective not splitting, sides glabrous, sutures denticulate, teeth to 0.1 mm;

staminode 10–14 mm, included, 0.4–0.5 mm diam., tip straight, distal 1–5 mm sparsely to densely pilose, hairs yellow or orangish yellow, to 1 mm;

style 12–19 mm.

8–13 × 5.5–7 mm.

7–11 × 5–6 mm.