Flora of North America species comparison

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

erect, 10–31 cm, retrorsely hairy, not glaucous.

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.

basal and cauline, not leathery, glabrous or retrorsely hairy primarily along midvein and margins;

basal and proximal cauline 14–75 × 4–16 mm, blade ovate to lanceolate or elliptic, base tapered, margins entire or ± serrate distally, apex obtuse to acute;

cauline 3–5 pairs, sessile or proximals short-petiolate, 15–45 × 2–8 mm, blade oblanceolate to lanceolate, base tapered, margins entire or ± serrate or ± dentate, primarily distally, apex obtuse to acute.

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.

interrupted, cylindric, 4–18 cm, axis retrorsely hairy proximally, sparsely glandular-pubescent distally, verticillasters 2–5, cymes 2–6-flowered, (1 or)2 per node;

proximal bracts lanceolate, 9–38 × 2–12 mm, margins entire or ± serrate distally;

peduncles and pedicels ascending, sparsely glandular-pubescent.

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.

calyx lobes ovate, 3–4 × 1–2 mm, sparsely glandular-pubescent;

corolla violet to blue or purple, with purple nectar guides, funnelform, 14–23 mm, glandular-pubescent externally, ± white-pubescent internally abaxially, tube 4–6 mm, throat gradually inflated, 5–6 mm diam., slightly 2-ridged abaxially;

stamens included, pollen sacs opposite, navicular, 0.9–1.2 mm, dehiscing completely, connective splitting, sides glabrous, sutures smooth;

staminode 9–12 mm, reaching orifice, 0.4–0.6 mm diam., tip straight, distal 0.5–2 mm pilose, hairs yellow or golden yellow, to 0.8 mm;

style 9–13 mm.

6–10(–12) × 5–6 mm.

5–8 × 3.5–5 mm, glabrous.