Flora of North America species comparison

1–few, with several rosettes.

1.

blades narrowly white-margined;

basal oblanceolate, 4–23 × 0.3–1.2(–2) cm, basal leaves generally longer than lowest internode;

cauline leaves opposite, proximal blades oblanceolate to oblong, distal linear-oblong.

blades not white-margined;

basal spatulate to elliptic or narrowly obovate, 20–45 × 3–10 cm, apex rounded to acute;

cauline leaves whorled, blade oblong-lanceolate, 10–32 × 3–7 cm.

narrow, 1.5–4(–5) cm wide, interrupted proximally, ± continuous distally.

elongate, open proximally, ± dense distally.

calyx 3–7(–12) mm;

corolla greenish white to pale or medium blue, usually dark blue- to purple-dotted and/or with a dark blue, purple, or green central stripe (except in var. idahoensis), 6–12 mm, lobes oblong-obovate-elliptic, widest near midlength, abruptly tapering to acute to short-acuminate apex;

androecial corona scales present, variable among the varieties;

style slender, distinct;

nectaries and foveae 1 per corolla lobe, foveae distal to nectary, opening into an elliptic-oblong to lance-ovate differentiated area on the corolla surface, rim fringed all around but with fringes shorter distally, or not fringed toward distal end.

calyx 6–16(–25) mm;

corolla pale yellowish green, purple-dotted and sometimes suffused with pale purple, 10–21 mm, lobes elliptic-oblong, apex short-acuminate;

androecial corona of trichomes and deeply fringed scales to 3 mm;

style slender, distinct;

nectaries and foveae 1 per lobe, foveae round, opening directly adaxial to nectary, without a differentiated area on the corolla surface, rim ± evenly fringed all around.

 = 78.