Flora of North America species comparison

not branching, straight, 1–5 dm.

usually branching, 1–6 dm.

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

blade flat, tapering toward both ends, becoming involute.

basal withering, 1–2 dm;

blade linear.

subumbellate, 1–5-flowered;

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

subumbellate, 1–6(–10)-flowered;

bracts 2–8 cm.

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.

erect;

perianth open, campanulate;

sepals lanceolate, 3–5 cm, apex recurved;

petals white to brightly or deeply yellow, purple, or dark red, with dark red median blotch, often with second paler distal blotch, obovate or cuneate to clawed, rounded, 3–5 cm, with scattered proximal hairs, apex retuse to obtuse;

glands in lower middle of petal, ± square, sometimes ovate, not depressed, covered with short, orange to red-purple hairs;

filaments usually equaling anthers;

anthers linear-lanceolate to oblong.

erect, 3-winged, ellipsoid-oblong.

erect, linear, angled, 5–6 cm.

light beige.

light beige, ± flat, 4–6 mm.

= 20.

= 14.