Flora of North America species comparison

ascending to erect, (15–)35–60 cm, retrorsely hairy, hairs pointed, at least proximally, not glaucous.

ascending to erect, 30–70 cm, ± retrorsely hairy, not glaucous.

cauline, opposite, glabrous, glaucous;

cauline 4–8 pairs, short-petiolate or sessile, (15–)20–60 × (2–)6–13(–20) mm, blade elliptic or proximals oblanceolate to lanceolate, base tapered, margins entire, apex obtuse to acute.

essentially cauline, basal leaves absent or poorly developed, not leathery, glabrous, sometimes ± puberulent;

cauline 4–8(–10) pairs, sessile, 30–90 × 4–17 mm, blade lanceolate, base tapered, margins entire, apex acute.

continuous, cylindric, 5–22 cm, axis glabrous or retrorsely hairy, verticillasters 4–8(–11), cymes 1- or 2(–4)-flowered, 2 per node;

proximal bracts lanceolate to elliptic, 8–66 × 1–13 mm;

peduncles and pedicels ascending to erect, peduncles glabrous or sparsely retrorsely hairy, pedicels papillate or glandular distally.

continuous or interrupted, cylindric, (1–)2–15 cm, axis ± retrorsely hairy, verticillasters 1–5, cymes (2–)6–13-flowered, 2 per node;

proximal bracts lanceolate to linear, 8–38 × 1–8 mm, margins entire;

peduncles and pedicels ascending to erect, glabrous or retrorsely hairy.

calyx lobes lanceolate, 4–6(–7) × 1.4–2.6 mm, glabrous;

corolla lavender to light violet or violet, with or without faint lavender nectar guides, ventricose-ampliate, (20–)22–25(–30) mm, glabrous externally, glabrous internally, tube 6–8 mm, throat gradually inflated, 7–9 mm diam., 2-ridged abaxially;

stamens: longer pair exserted, filaments glabrous, pollen sacs parallel, 1.5–1.9(–2.1) mm, distal 1/2–2/3 indehiscent, sides glabrous or hispidulous to lanate, hairs white, to 0.5 mm, sutures denticulate, teeth to 0.2 mm;

staminode 12–14 mm, reaching orifice or exserted, 0.6–0.8 mm diam., glabrous;

style 18–20 mm.

calyx lobes broadly ovate to obovate or elliptic, 1.7–3 × 0.9–2 mm, apex obtuse to acute or slightly cuspidate, glabrous;

corolla violet to blue or purple, with faint reddish purple nectar guides, funnelform, 12–15 mm, glabrous externally, densely yellow-villous internally abaxially, tube 3–4 mm, throat gradually inflated, 3–4 mm diam., 2-ridged abaxially;

stamens included or longer pair slightly exserted, pollen sacs opposite, explanate, 0.4–0.8 mm, dehiscing completely, connective splitting, sides glabrous, sutures smooth;

staminode 6–8 mm, included, 0.2–0.3 mm diam., tip straight to slightly recurved, distal 2–3 mm sparsely to densely villous, hairs yellow, to 0.7 mm;

style 7–9 mm.

7–11 × 3.5–4.5 mm.

4.5–6 × 2.5–3.5 mm, glabrous.

= 32.