Flora of North America species comparison

usually not branching or twisted, 1–4 dm.

usually branching, straight, 3–6 dm; bearing bulblets or not.

basal withering, 1–2 dm;

blade linear.

basal withering, 1–2 dm;

blade linear-attenuate.

1–4-flowered;

bracts 2–4 cm.

mono-chasiate, 1–4-flowered;

bracts 1–2 cm.

erect;

perianth open, campanulate;

sepals with dark red or purple blotch near base, lanceolate, 1–4 cm, usually glabrous, apex acuminate;

petals white tinged with lilac, with longitudinal median green stripe on abaxial surface and dark red or purple crescent distal to gland, narrowly obovate, 2–4 cm, ± glabrous;

glands surrounded by yellow border, round, depressed, surrounded by conspicuously fringed membrane, densely covered with short, unbranched or distally branching hairs;

filaments 5–6 mm;

anthers yellow, blue, or maroon, oblong, 5–7 mm, apex obtuse.

erect;

perianth open, broadly campanulate;

sepals usually with brownish blotch near base, lanceolate, 3 cm, apex acuminate;

petals white to lavender, sometimes with brownish blotch distal to gland, obovate-cuneate, rounded distally, 2–3 cm, usually with yellow hairs near gland, apex acute to acuminate;

glands many, rounded, not depressed, short, thick, distally knobbed, sometimes with yellowish or purplish hairs, otherwise glabrous;

filaments 7–8 mm;

anthers white, oblong, 5–7 mm, apex acute.

erect, linear-lanceoloid, angled, 3–7 cm, apex acuminate.

erect, linear, angled in cross section, ca. 5 cm.

yellow, flat.

= 14.

= 14.