Flora of North America species comparison

not branching, straight, 2.4–5.5 dm.

usually not branching or twisted, 4–6 dm.

basal withering, 18–35 cm;

blade linear.

basal withering, 1–2 dm;

blade linear.

subumbellate, 1–3-flowered.

1–4-flowered;

bracts 2–4 cm.

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;

perianth open, campanulate;

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

petals white tinged with lilac, with longitudinal median green stripe on abaxial surface, not spotted, narrowly obovate, 2–4 cm, ± glabrous;

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

filaments ca. 6 mm;

anthers bluish, oblong, 5–7 mm, ± glabrous, apex obtuse.

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

erect, tan to brown, linear-lanceoloid, angled, ca. 7 cm, apex acuminate.

flat, inflated.

light yellow, flat.

= 18.

= 14.