Flora of North America species comparison

usually not branching, stout, 2–5 dm.

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

basal withering, 0.5–1 dm;

blade linear.

basal persistent, 20–35 cm;

blade gradually tapering distally, adaxially pubescent.

subumbellate, 1–3-flowered;

bracts 3–5 cm.

subumbellate, 1–3-flowered;

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

erect;

perianth open, campanulate;

sepals lanceolate, 4–5 cm, apex acuminate;

petals purple, with median green stripe on abaxial surface, obovate, 4–6 cm, bearded distal to gland, apex acuminate;

glands triangular-sagittate, slightly depressed, densely covered with slender hairs;

filaments 8–9 mm;

anthers lanceolate-linear, ca. 1 cm, apex obtuse.

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, lanceoloid-linear, angled, 4–5 cm, apex acuminate.

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

flat, inflated.

light-colored, irregular.

= 14.

= 20.