Flora of North America species comparison

erect, (15–)20–55(–60) cm, glabrous.

prostrate to ascending, to 1 cm, scabrous or puberulent.

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.

essentially basal, not leathery, scabrous;

basal and proximal cauline sessile, 15–25(–35) × 1.5–2.6(–4.5) mm, blade oblanceolate to linear, base tapered, margins entire or obscurely dentate 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.

essentially absent, 0.1–0.6 cm, axis puberulent, verticillasters 1 or 2, cymes 1(–3)-flowered, 1(or 2) per node;

proximal bracts oblanceolate to linear, 8–20 × 1–3 mm;

peduncles and pedicels glandular-pubescent and scabrous.

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 lanceolate, 5–6.5 × 1–1.8 mm, glandular-pubescent and scabrous;

corolla lavender to bluish lavender, without nectar guides, funnelform, 14–18 mm, yellowish or whitish villous internally abaxially, tube 5–6 mm, throat gradually inflated, not constricted at orifice, 4.5–6 mm diam., slightly 2-ridged abaxially;

stamens: longer pair reaching orifice, pollen sacs widely divergent to opposite, navicular, 0.8–1.3 mm, dehiscing completely, sutures papillate;

staminode 8–11 mm, prominently exserted, 0.5–0.8 mm diam., tip straight to recurved, distal 5–7 mm densely pubescent, hairs orange, to 1 mm;

style 9–12 mm.

10–15 × 8–10 mm.

3.5–5 × 3–4 mm.

= 16.