Flora of North America species comparison

ascending to erect, 9–30(–35) cm, glabrous.

ascending to erect, 25–60 cm, glabrous or sparsely puberulent, not glaucous.

basal and cauline, basal not reduced, glabrous;

basal and proximal cauline 15–60(–90) × 8–25(–39) mm, blade oblanceolate to obovate, base tapered, apex rounded to obtuse, sometimes mucronate;

cauline 3–7 pairs, short-petiolate or sessile, (25–)35–80 × 10–20(–28) mm, blade lanceolate to ovate, base tapered to clasping, apex obtuse to acute.

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

cauline 4–8 pairs, short-petiolate or sessile, 30–70(–80) × 8–18(–35) mm, blade oblanceolate to lanceolate, base tapered or clasping, margins entire, apex obtuse to acute.

continuous or interrupted, cylindric, (4–)6–20 cm, axis glabrous, verticillasters (3–)5–10(–14), cymes 2–5-flowered;

proximal bracts ovate to lanceolate, (5–)13–56 × (2–)4–24 mm;

peduncles and pedicels glabrous, peduncles to 12 mm.

continuous or interrupted, cylindric, (1.5–)5–16 cm, axis ± retrorsely hairy, verticillasters 2–6(–10), cymes (2–)6–14-flowered, 2 per node;

proximal bracts lanceolate to linear, rarely ovate, 3–60 × 1–23 mm, margins entire;

peduncles and pedicels ascending to erect, ± retrorsely hairy.

calyx lobes ovate, 5–8(–12) × 2–3.5 mm, margins entire or erose, broadly scarious, apex acuminate, glabrous;

corolla bluish lavender to lavender or pink, with dark reddish violet or reddish nectar guides, funnelform to ventricose, 15–22 mm, glabrous externally, sparsely white-villous internally abaxially or glabrous, tube 5–7 mm, throat gradually inflated, 5–8 mm diam., rounded abaxially;

stamens included, pollen sacs opposite, (1–)1.2–1.6 mm, sutures papillate;

staminode 8–10 mm, included or reaching orifice, 0.7–1 mm diam., tip strongly recurved, distal 2–5 mm densely villous, hairs yellowish, brownish, or orangish, to 1 mm;

style 10–12 mm.

calyx lobes broadly ovate, 1.8–3(–3.5) × 1.4–2 mm, apex obtuse to acute or short-cuspidate, glabrous;

corolla blue to violet or purple, with faint reddish purple nectar guides, funnelform, 12–16(–18) mm, glabrous externally, sparsely white-villous internally abaxially, tube 4–5 mm, throat gradually inflated, 3–6 mm diam., 2-ridged abaxially;

stamens included or longer pair slightly exserted, pollen sacs opposite, navicular, 0.9–1 mm, dehiscing completely, connective splitting, sides glabrous, sutures papillate;

staminode 8–9 mm, reaching orifice, 0.2–0.3 mm diam., tip slightly recurved, distal 3–4 mm moderately to densely villous, hairs golden yellow, to 1 mm;

style 9–13 mm.

8–12 × 4–6 mm.

4–7 × 3.5–5 mm, glabrous.

2–4 mm.

= 16.