Flora of North America species comparison

usually not branching or twisted, 1–4 dm.

usually branching, 1–6 dm.

basal withering, 1–2 dm;

blade linear.

basal withering, 1–2 dm;

blade linear.

1–4-flowered;

bracts 2–4 cm.

subumbellate, 1–3-flowered;

bracts 2–8 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, campanulate;

sepals with dark red proximal blotch surrounding gland and extending to base, lanceolate, 2–3 cm, apex recurved;

petals white or yellowish, often pink abaxially, with dark red blotch surrounding gland, often with small red spot immediately above gland, obovate to cuneate, 3–5 cm, with scattered hairs proximally;

glands suprabasal, ± square, not depressed, covered with short hairs;

filaments usually equaling anthers;

anthers linear-lanceolate to oblong.

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

erect, linear, angled, 5–6 cm.

yellow, flat.

light beige, flat, 5–6 mm.

= 14.

= 14.