Flora of North America species comparison

ascending to erect, 25–80 cm, retrorsely hairy, hairs pointed, not glaucous.

erect, 12–50 cm, retrorsely hairy proximally, becoming glandular-pubescent distally, not glaucous.

cauline, whorled, sometimes alternate, glabrate or retrorsely hairy, hairs pointed, not glaucous;

cauline 15–20 pairs, sessile, (5–)10–52 × 1–6(–12) mm, blade linear, sometimes lanceolate, base tapered, margins coarsely serrate-dentate, distals sometimes entire, apex acute.

basal and cauline, not leathery, glabrous or retrorsely hairy abaxially along midvein and glabrous adaxially, ± glaucescent;

basal and proximal cauline 13–55 × 4–8(–12) mm, blade spatulate to oblanceolate or elliptic, base tapered, margins entire, apex rounded to acute;

cauline 2–5(or 6) pairs, sessile, 5–40(–52) × 0.3–5 mm, blade linear, base tapered, margins entire, apex acuminate.

interrupted, cylindric, 4–35 cm, axis glandular-pubescent, verticillasters 5–10, cymes 1–4-flowered, 1 or 2(or 3) per node;

proximal bracts linear, rarely lanceolate, 5–34 × 1–6 mm;

peduncles and pedicels spreading to ascending, peduncles retrorsely hairy and, sometimes, glandular-pubescent distally, pedicels glandular-pubescent.

interrupted, secund, 1–14 cm, axis glandular-pubescent, verticillasters (1–)3 or 4(or 5), cymes 1–3-flowered, 1(or 2) per node;

proximal bracts linear, 3–15 × 0.3–1.4 mm;

peduncles and pedicels erect, sometimes ascending, glandular-pubescent.

calyx lobes lanceolate, 3.5–5.8 × 1–2 mm, glandular-pubescent;

corolla bluish lavender to lavender, pinkish, pale purple, or violet, with reddish purple nectar guides, funnelform, 13–19 mm, glandular-pubescent externally, glabrous internally or sparsely white-lanate abaxially, tube 5–7 mm, throat gradually inflated, 5–6 mm diam., rounded abaxially;

stamens included, filaments glabrous or white-pubescent distally, pollen sacs parallel, 0.9–1.3 mm, distal 2/3 indehiscent, sides glabrous, sutures denticulate, teeth to 0.1 mm;

staminode 9–11 mm, exserted, 0.2–0.3 mm diam., distal 6–7 mm moderately to densely lanate, hairs yellow, to 2.5 mm;

style 8–10 mm.

calyx lobes ovate to lanceolate, 3.8–7.5 × 1.5–2.6 mm, glabrescent or glandular-pubescent;

corolla violet to blue or purple, with violet nectar guides, tubular-funnelform, 17–25 mm, glandular-pubescent externally, densely golden-villous internally abaxially, tube 4–7 mm, throat slightly inflated, 5–7 mm diam., prominently 2-ridged abaxially;

stamens included, pollen sacs divergent to opposite, navicular, 1–1.3 mm, dehiscing completely, connective splitting, sides glabrous, sutures papillate;

staminode 10–13 mm, included, 0.2–0.3 mm diam., tip straight to recurved, distal 7–11 mm densely pilose, hairs golden, to 1.5 mm;

style 12–17 mm.

4.5–7 × 3–4.5 mm.

6–9 × 4–5 mm, glabrous.

= 16.