Flora of North America species comparison

ascending to erect, (20–)30–100 cm, puberulent to pubescent, sometimes glabrous, not glaucous.

ascending to erect, 15–25(–35) cm, glabrous, not glaucous.

basal and cauline, not leathery, puberulent to pubescent, sometimes only along midvein and margins;

basal and proximal cauline 40–150(–230) × 14–50(–70) mm, blade ovate to deltate-ovate, base truncate to tapered, margins serrate-dentate, apex obtuse to acute;

cauline (3–)5–7 pairs, sessile, 25–80(–120) × 15–45(–70) mm, blade oblong to ovate or triangular-ovate, base clasping, margins serrate, apex acute.

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

basal and proximal cauline 48–110 × 10–18 mm, blade oblanceolate to elliptic, base tapered, margins entire, apex obtuse to acute;

cauline 5–8 pairs, petiolate, 30–80(–120) × 4–18 mm, blade lanceolate to linear, base tapered, apex acute.

interrupted, narrowly conic, 6–30 cm, axis densely glandular-pubescent, verticillasters 4–10, cymes 5–13-flowered, 2 per node;

proximal bracts ovate to lanceolate, 11–35(–70) × 4–30(–45) mm, margins serrate, sometimes entire;

peduncles and pedicels ascending to erect, densely glandular-pubescent.

interrupted or continuous, ± secund, 13–48 cm, axis glabrous, verticillasters 6–14, cymes 2–4(–8)-flowered, 2 per node;

proximal bracts lanceolate, 8–50(–100) × 2–10(–20) mm;

peduncles and pedicels glabrous.

calyx lobes ovate to lanceolate, (2–)3–5 × 0.9–1.6(–1.9) mm, margins narrowly scarious, sparsely to densely glandular-pubescent;

corolla violet to blue or purple, with reddish purple nectar guides, funnelform, 15–22 mm, glandular-pubescent externally, densely white-villous internally abaxially, rarely glabrous, tube 5–6 mm, throat slightly inflated, 5–7 mm diam., 2-ridged abaxially;

stamens included, pollen sacs opposite, navicular, 0.8–1.1 mm, dehiscing completely, connective splitting, sides glabrous, sutures smooth or papillate;

staminode 9–12 mm, reaching orifice or slightly exserted, 0.3–0.4 mm diam., tip recurved, distal 1–2 mm densely pilose, hairs yellow, to 1.5 mm;

style 9–12 mm.

calyx lobes ovate to obovate, 3–5 × 1.8–3 mm, glabrous;

corolla bluish lavender, with reddish purple nectar guides, ventricose, (17–)21–26(–30) mm, glabrous externally, sparsely yellow- or white-villous internally abaxially, tube 5–8 mm, throat gradually inflated, not constricted at orifice, 6–10 mm diam., rounded abaxially;

stamens: longer pair reaching orifice, pollen sacs divergent, sigmoid, 1.6–2.2 mm, dehiscing incompletely, proximal 1/3 indehiscent, connective not splitting, sides glabrous, sutures denticulate, teeth to 0.1 mm;

staminode 12–15 mm, reaching orifice, 0.3–0.5 mm diam., tip straight, distal 4–6 mm densely pilose, hairs golden yellow, to 1.5 mm;

style 17–20 mm.

4–6 × 2.5–4.5 mm, glabrous.

8–10 × 5–7 mm.

= 16.

= 16.