Flora of North America species comparison

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

usually not branching or twisted, 1–3 dm.

basal persistent, 20–35 cm;

blade gradually tapering distally, adaxially pubescent.

basal withering, 1–2 dm;

blade linear.

subumbellate, 1–3-flowered;

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

erect, subumbellate, 1–4-flowered;

bracts unequal at base of inflorescence, 1–6 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, campanulate;

sepals with maroon blotch distal to gland, broadly lanceolate, 1–4 cm, apex acuminate;

petals lemon yellow, with maroon blotch distal to gland, broadly obovate, cuneate, 3–3.5 cm, ± glabrous or with a few lemon-yellow hairs near gland;

glands round, depressed, surrounded by conspicuously fringed membranes, densely covered with short, unbranched or distally branching hairs;

filaments ca. equaling anthers;

anthers yellowish cream, oblong, apex obtuse.

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

erect, light tan to light brown, linear-lanceoloid, 3-angled, ca. 2.5–5 cm, apex acuminate.

light-colored, irregular.

light yellow, flat.

= 20.

= 32.