Flora of North America species comparison

not branching, straight, 1–5 dm.

usually not branching distal to base, 1–10 dm, conspicuously glaucous.

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

blade flat, tapering toward both ends, becoming involute.

basal 3–4 dm;

blade linear, attenuate, channeled, conspicuously glaucous.

subumbellate, 1–5-flowered;

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

1–2-flowered;

bracts paired, opposite.

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, ± oblong;

sepals appressed to petals, grayish mauve to pale green, broadly lanceolate, 1–2.5 cm, glabrous, apex acuminate;

petals pale yellow, obovate, 2–4.5 cm, adaxial surface moderately hairy from gland to apex, margins moderately ciliate to apex, apex acuminate to acute;

glands depressed, with long, thin, distal hairs;

filaments 7–9 mm;

anthers ± oblong, 6 mm, apex obtuse.

erect, 3-winged, ellipsoid-oblong.

nodding, ridged, not winged, oblong, 2–4 cm, apex acute.

light beige.

dark brown, irregular.

= 20.