Flora of North America species comparison

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

slender, branching or not, 0.8–2 dm.

basal persistent, 20–35 cm;

blade gradually tapering distally, adaxially pubescent.

basal persistent, 1–3 dm;

blade linear, flat.

subumbellate, 1–3-flowered;

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

1–6-flowered.

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 at anthesis;

perianth open, campanulate;

sepals oblong-lanceolate, 16–20 mm, glabrous, apex acuminate;

petals deep yellow, often with red-brown blotch distal to base, narrowly obovate, 12–20 mm, ciliate, adaxial surface densely branching-hairy;

glands bordered proximally by ciliate membrane, distally by short hairs;

anthers short-tipped.

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

nodding, winged, oblong, 1–2 cm.

light-colored, irregular.

dark brown, irregular.

= 20.

= 20.