Flora of North America species comparison

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

usually branching distally, ± flexuous, 2–6 dm.

basal persistent, 20–35 cm;

blade gradually tapering distally, adaxially pubescent.

basal withering, 1–3 dm;

blade linear.

subumbellate, 1–3-flowered;

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

1–few-flowered;

bracts opposite pedicel, 2–10 cm.

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.

erect;

perianth open, broadly campanulate;

sepals with purple blotch near base, lanceolate, 2–3 cm, apex acuminate;

petals white tinged with lilac, with purple blotch near base, usually obovate, ± concave, 2–5 cm, glabrous except few hairs near base, apex obtuse;

glands oblong, not depressed, densely hairy, hairs branching;

filaments 8–10 mm;

anthers lilac, oblong, 4–5 mm.

erect, 3-winged, ellipsoid, ca. 2 cm, base and apex acute.

erect, narrow-oblong, rounded in cross section, 2–5 cm, apex obtuse.

light-colored, irregular.

light yellow, translucent, flat.

= 20.

= 14.