Flora of North America species comparison

twining or straggling over ground, branching, 1–2 dm, usually sinuous.

not branching, straight, 2–4 dm, proximal internodes elongate;

bulblets rare.

basal, withering;

blade linear, attenuate.

basal usually persistent, 1–3 dm × 10–25 mm;

blade flat, tapering toward both ends, becoming involute;

cauline ca. halfway up stem.

1–4-flowered;

bracts 1–3 cm.

subumbellate, 1–4-flowered;

bracts 2 or more, narrowly lanceolate to linear, long-attenuate, unequal, 2–10 cm.

erect;

perianth open, campanulate, each member with transverse yellow band;

sepals lanceolate to lanceolate-ovate, 2–3 cm;

petals white with lilac tinge, darker veined, especially distally, sometimes with purple blotch distal to gland, obovate to cuneate, 3–4 cm, with sparse or dense, short or long hairs near gland, apex rounded;

glands transverse-lunate or wider, densely short-hairy;

filaments 6–10 mm;

anthers oblong, 5–7 mm, apex obtuse or acute.

erect;

perianth open, campanulate;

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

petals lavender, with deep purple adaxial crescent distal to gland, obovate, cuneate, ± ciliate laterally, sparingly covered with long, flexuous hairs distal to gland;

glands ± triangular-lunate, slightly depressed, bordered proximally by narrow, deeply fringed membrane, covered with short, thick hairs, hairs and membrane fringe densely covered with long papillae;

filaments longer than anthers;

anthers oblong, 6–10 mm, apex obtuse.

erect, lanceoloid, angled, stout, 3–4 cm.

erect, 3-winged, ellipsoid to nearly globular.

light beige, flat.

light beige.

= 14.

= 40.