Flora of North America species comparison

ascending to erect, 15–55 cm, glabrous, glaucous.

ascending to erect, 10–40 cm, moderately to densely retrorsely hairy, not glaucous.

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

basal and proximal cauline (15–)30–115 × 4–25 mm, blade elliptic to oblanceolate or spatulate, base tapered, margins entire, apex obtuse to acute;

cauline 3–6 pairs, sessile or proximals short-petiolate, (17–)40–72 × 9–28 mm, blade ovate to lanceolate, base tapered to clasping, margins entire, apex obtuse to acute.

basal and cauline, opposite, rarely alternate, not leathery, ± retrorsely hairy;

basal and proximal cauline 10–25(–65) × 1–2(–6) mm, blade linear, base tapered, margins entire, apex acute, rarely obtuse;

cauline 7–10 pairs, sessile or proximals sometimes petiolate, 4–45 × 1–4(–6) mm, blade linear, rarely lanceolate distally, base truncate or clasping, margins entire, usually revolute, apex acute.

continuous or interrupted, cylindric, 2–21 cm, axis glabrous, verticillasters 1–6, cymes (2 or)3–8-flowered, 2 per node;

proximal bracts lanceolate, 9–45 × 4–13 mm, margins entire;

peduncles and pedicels erect, glabrous.

interrupted, cylindric, 3–18 cm, axis retrorsely hairy and glandular-pubescent, sometimes only retrorsely hairy, verticillasters 3–7, cymes 1- or 2(or 3)-flowered, 2 per node;

proximal bracts lanceolate to linear, 5–24 × 1–2 mm, margins entire;

peduncles and pedicels ascending to erect, retrorsely hairy and glandular-pubescent.

calyx lobes ovate to lanceolate, 2.5–4.5 × 1–2.4 mm, glabrous;

corolla violet to blue or purple, with light violet nectar guides, funnelform, 11–15 mm, glabrous externally, sparsely whitish or yellowish pubescent internally abaxially, tube 3–4 mm, throat gradually inflated, 3.5–5 mm diam., 2-ridged abaxially;

stamens: longer pair exserted, pollen sacs opposite, navicular, 0.5–0.7 mm, dehiscing completely, connective splitting, sides glabrous, sutures smooth;

staminode 7–8 mm, reaching orifice, 0.2–0.3 mm diam., tip straight to slightly recurved, distal 0.5–2 mm sparsely to densely pilose, hairs golden yellow, to 0.8 mm;

style 8–10 mm.

calyx lobes broadly lanceolate, 4–6.5 × 1.5–3 mm, glandular-pubescent;

corolla blue to violet or purple, with violet nectar guides, funnelform, (13–)15–22 mm, glandular-pubescent externally, glabrous internally, tube 5–6 mm, throat gradually inflated, 4–6(–7) mm diam., slightly 2-ridged abaxially;

stamens included, pollen sacs opposite, navicular, 1.1–1.3 mm, dehiscing completely, connective splitting, sides glabrous, sutures papillate;

staminode 13–17 mm, exserted, 0.5–0.9 mm diam., tip straight, distal 7–9 mm sparsely yellow-pubescent, hairs to 1 mm;

style 11–13 mm.

5–6 × 3.5–4.5 mm, glabrous.

6–8 × 3–5 mm, glabrous.

= 48.