Flora of North America species comparison

erect, (15–)20–55(–60) cm, glabrous.

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

basal and cauline, glabrous;

basal and proximal cauline 20–100 × 4–24 mm, blade spatulate to oblanceolate, base tapered, apex rounded to obtuse or acute, sometimes mucronate;

cauline 2–5 pairs, sessile, (14–)23–95 × (4–)6–31 mm, blade lanceolate or ovate to trullate, base clasping to cordate-clasping, apex obtuse to acute.

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.

interrupted, cylindric, (5–)11–38 cm, axis glabrous, verticillasters (3 or)4–12, cymes 2- or 3(–5)-flowered;

proximal bracts trullate to ovate, 11–70 × 7–38 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 ovate, 4.5–7 × 1.5–3.5 mm, margins entire or erose, broadly scarious, glabrous or obscurely glandular along margins distally;

corolla lavender to violet or bluish, with violet or reddish purple nectar guides, tubular-salverform, 14–23(–28) mm, glabrous externally or glandular, glabrous or sparsely white-villous internally abaxially, tube 7–9 mm, throat slightly inflated, 4–6 mm diam., rounded abaxially;

stamens included, pollen sacs opposite, 1–1.3 mm, sutures papillate;

staminode 8–11 mm, reaching orifice, 0.8–1.6 mm diam., tip recurved, distal 1–3 mm villous, hairs golden yellow, to 1.5 mm;

style 11–15 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.

10–15 × 8–10 mm.

5–8 × 3.5–5 mm, glabrous.

= 16.