Flora of North America species comparison

usually not branching or twisted, 1–4 dm.

not branching, straight, 2.4–5.5 dm.

basal withering, 1–2 dm;

blade linear.

basal withering, 18–35 cm;

blade linear.

1–4-flowered;

bracts 2–4 cm.

subumbellate, 1–3-flowered.

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 marked similar to petals, lanceolate, usually much shorter, glabrous, apex acute;

petals white to purple, greenish adaxially, clawed, often with narrow, transverse purple band distal to gland and purple blotch on claw, obovate, cuneate, usually obtuse and rounded distally;

glands transversely oblong, not depressed, densely bearded with distally branching hairs, outermost of which somewhat connate at base to form discontinuous, deeply fringed membranes;

filaments shorter than anthers;

anthers lanceolate, apex acute to apiculate.

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

erect, linear-oblong, 3-angled, 3–6 cm, apex acute.

yellow, flat.

flat, inflated.

= 14.

= 18.