Flora of North America species comparison

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

usually not branching or twisted, 4–6 dm.

basal, withering;

blade linear, attenuate.

basal withering, 1–2 dm;

blade linear.

1–4-flowered;

bracts 1–3 cm.

1–4-flowered;

bracts 2–4 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 with dark purple or red blotch near base, lanceolate, 1–4 cm, apex acuminate;

petals white tinged with lilac, with longitudinal median green stripe on abaxial surface, not spotted, narrowly obovate, 2–4 cm, ± glabrous;

glands surrounded by red or purple border, round, depressed, surrounded by conspicuously fringed membrane, densely covered with short, unbranched or distally branching hairs;

filaments ca. 6 mm;

anthers bluish, oblong, 5–7 mm, ± glabrous, apex obtuse.

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

erect, tan to brown, linear-lanceoloid, angled, ca. 7 cm, apex acuminate.

light beige, flat.

light yellow, flat.

= 14.

= 14.