Flora of North America species comparison

1.

generally 1, with 0–few rosettes.

blades not white-margined;

basal spatulate or oblanceolate to elliptic-obovate, 7–50 × 1–15 cm, apex rounded to acute;

cauline leaves whorled, blade oblong-lanceolate.

blades white-margined;

basal oblanceolate, 2–9 × 0.3–1(–1.5) cm, apex abruptly pointed;

cauline leaves whorled, distal blades linear-oblong.

elongate, open proximally, ± dense distally.

elongate, dense, branching near base of main stem, nearly continuous distally.

calyx 10–25 mm;

corolla pale yellowish green, purple-dotted, occasionally suffused with purple distally, 12–25 mm, lobes elliptic-oblong to obovate, apex [obtuse or] acute to short-acuminate;

androecial corona scales 7–9 mm, deeply multicleft;

style slender, distinct;

nectaries and foveae 2 per corolla lobe, foveae narrowly elliptic, opening directly adaxial to nectary, each opening with a ± even fringe all around, the pair opening into a green but not rimmed area on the corolla surface.

calyx 6–11 mm;

corolla white to pale blue, veins darker, campanulate, 8–13 mm, lobes elliptic-oblong to obovate, apex short-acuminate;

androecial corona scales narrowly oblong, 2–3 mm, margins fringed;

style slender, distinct;

nectaries and foveae 1 per corolla lobe, foveae round at base, opening directly adaxial to nectary, without a differentiated area on the corolla surface, rim prolonged into an appendage ca. 3 mm, proximally tubular, dividing distally into 2 oblong, fringed lobes.

 = 78.