Flora of North America species comparison

slender, not branching or rarely branching in axil of cauline leaf, straight, 2–4 dm.

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

basal persistent, 20–35 cm;

blade gradually tapering distally, adaxially pubescent.

basal 3–4 dm;

blade linear, attenuate, channeled, conspicuously glaucous.

subumbellate, 1–3-flowered;

bracts 2, subopposite, linear to narrowly lanceolate, attenuate, 1–3 cm.

1–2-flowered;

bracts paired, opposite.

erect;

perianth open, campanulate;

sepals shorter than petals, ovate-acuminate, glabrous;

petals yellowish white, with purplish hairs toward base, broadly obovate, cuneate, inconspicuously fringed laterally, sparingly short-hairy adaxially, apex rounded;

glands transversely oblong, slightly depressed, densely covered with short, distally branching hairs, the bases of which unite at lower margin to form inconspicuous, discontinuous membranes;

filaments shorter than anthers;

anthers oblong-lanceolate, apex acute to short-apiculate.

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, ca. 2 cm, base and apex acute.

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

light-colored, irregular.

dark brown, irregular.

= 20.