Flora of North America species comparison

usually not branching, stout, 2–5 dm.

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

basal withering, 0.5–1 dm;

blade linear.

basal 3–4 dm;

blade linear, attenuate, channeled, conspicuously glaucous.

subumbellate, 1–3-flowered;

bracts 3–5 cm.

1–2-flowered;

bracts paired, opposite.

erect;

perianth open, campanulate;

sepals lanceolate, 4–5 cm, apex acuminate;

petals purple, with median green stripe on abaxial surface, obovate, 4–6 cm, bearded distal to gland, apex acuminate;

glands triangular-sagittate, slightly depressed, densely covered with slender hairs;

filaments 8–9 mm;

anthers lanceolate-linear, ca. 1 cm, 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, lanceoloid-linear, angled, 4–5 cm, apex acuminate.

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

flat, inflated.

dark brown, irregular.

= 14.