Flora of North America species comparison

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

not branching, straight, 2.4–5.5 dm.

basal persistent, 20–35 cm;

blade gradually tapering distally, adaxially pubescent.

basal withering, 18–35 cm;

blade linear.

subumbellate, 1–3-flowered;

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

subumbellate, 1–3-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;

perianth open, campanulate;

sepals marked similar to petals, lanceolate, usually much shorter, glabrous, apex acute;

petals white to purple, greenish adaxially, clawed, often with narrow, transverse purple band distal to gland and purple blotch on claw, obovate, cuneate, usually obtuse and rounded distally;

glands transversely oblong, not depressed, densely bearded with distally branching hairs, outermost of which somewhat connate at base to form discontinuous, deeply fringed membranes;

filaments shorter than anthers;

anthers lanceolate, apex acute to apiculate.

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

erect, linear-oblong, 3-angled, 3–6 cm, apex acute.

light-colored, irregular.

flat, inflated.

= 20.

= 18.