Flora of North America species comparison

not branching, straight, 1–5 dm.

usually branching distal to base, 1–5 dm, slightly glaucous.

basal persistent, subtended by inflorescence, 1–3 dm × 5–25 mm;

blade flat, tapering toward both ends, becoming involute.

basal persistent, 20–50 cm;

blade linear, flat, slightly glaucous.

subumbellate, 1–5-flowered;

bracts 2 or more, narrowly lanceolate to linear, long-attenuate, unequal, 1–5 cm.

2–many-flowered.

erect;

perianth open, campanulate;

sepals ovate to lanceolate, usually much shorter than petals, glabrous, apex acute to acuminate;

petals creamy white to lavender, with conspicuous median red-purple adaxial blotch, obovate, invested near gland with few long, flexuous hairs, base cuneate, apex rounded or acute;

glands triangular-lunate, slightly depressed, bordered proximally by comparatively narrow, deeply fringed membrane, distally often by narrower, crenate membranes, enclosed surface densely covered with long yellowish hairs, which, with membrane fringe, are often inconspicuously papillose;

filaments slightly longer than anthers;

anthers oblong, apex obtuse.

nodding;

perianth closed at apex, globular;

sepals spreading, ovate to lanceolate, 1.5–2 cm;

petals deep yellow, with brown abaxial blotch, widely lanceolate, 1.6–2 cm, densely ciliate throughout, adaxial surface glabrous or with a few hairs near gland;

glands deeply depressed, bordered distally by band of hairs;

filaments longer than anthers;

anthers oblong, apex obtuse or acute.

erect, 3-winged, ellipsoid-oblong.

nodding, winged, oblong, 2–3 cm, apex obtuse or acute.

light beige.

dark brown, irregular.

= 20.

= 20.