Flora of North America species comparison

ascending to erect, 18–85 cm, glabrous, not glaucous.

ascending, 10–35 cm, glabrous, glaucescent, proximal stems usually buried, rhizomelike.

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

basal and proximal cauline 55–250 × 7–40 mm, blade lanceolate to elliptic, base tapered, margins entire, apex obtuse to acute;

cauline 3–5 pairs, short-petiolate or sessile, 40–83 × 10–36 mm, blade ovate to lanceolate, base tapered to clasping, apex obtuse to acute.

cauline, leathery, glabrous;

cauline 2–5 pairs, short-petiolate or sessile, 18–60 × 5–22 mm, blade spatulate to obovate, base tapered, margins entire, apex rounded to obtuse or truncate.

continuous, cylindric, 4–35 cm, axis glabrous, verticillasters 4–11, cymes 1–6-flowered, 2 per node;

proximal bracts ovate to lanceolate, 22–85 × 11–35 mm;

peduncles and pedicels glabrous, peduncles to 20 mm, pedicels 1–6 mm.

continuous or interrupted, cylindric, 5–12 cm, axis glabrous, verticillasters 3–7, cymes (1–)3–8-flowered, 2 per node;

proximal bracts oval to oblong, 22–44 × 8–18 mm, margins entire or erose;

peduncles and pedicels ascending to erect, glabrous.

calyx lobes ovate to lanceolate, (5.3–)6.5–8.5 × 1.6–3 mm, apex acuminate to caudate, glabrous;

corolla blue to violet or purple, with reddish purple nectar guides, ventricose, 29–35 mm, glabrous externally, glabrous internally, tube 8–11 mm, throat gradually inflated, not constricted at orifice, 9–10 mm diam., slightly 2-ridged abaxially;

stamens: longer pair reaching orifice, pollen sacs divergent to opposite, sigmoid, 2–2.7 mm, dehiscing incompletely, proximal 1/5–1/3 indehiscent, connective not splitting, sides sparsely hirsute, hairs white or tan, to 0.1 mm, especially near connective, sometimes merely scurfy near connective, sutures denticulate, teeth to 0.1 mm;

staminode 16–20 mm, reaching orifice, 0.5–1 mm diam., tip straight, distal 4–6 mm ± uniformly sparsely pilose, hairs yellow, to 1 mm;

style 20–24 mm.

calyx lobes ovate-oblong to lanceolate, 3–5 × 1.4–2.1 mm, glandular-pubescent;

corolla pinkish lavender, with reddish or violet nectar guides, funnelform, 13–18 mm, glabrous externally, moderately yellowish pilose internally abaxially, tube 4–6 mm, throat gradually inflated, 4–6 mm diam., 2-ridged abaxially;

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

staminode 5–7 mm, reaching orifice, 0.2–0.3 mm diam., tip straight to slightly recurved, glabrous;

style 7–10 mm.

10–13 × 8–10 mm.

8–11 × 5–7 mm, glabrous.

= 16.