Flora of North America species comparison

usually not branching or twisted, 1–3 dm.

usually stout, sparingly branching, not flexuous or twisted, 3–6 dm.

basal withering, 1–2 dm;

blade linear.

basal withering, 1–2 dm;

blade linear, glaucous.

erect, subumbellate, 1–4-flowered;

bracts unequal at base of inflorescence, 1–6 cm.

subumbellate, 1–4-flowered;

bracts opposite pedicel, 4–8 cm.

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;

perianth open, campanulate;

sepals usually with dark red blotch near base, lanceolate-ovate, 2–3 cm;

petals yellow, often tinged purple in drying, cuneate to obovate, 3–5 cm;

glands usually ± round, depressed, small, surrounded by conspicuously fringed membrane and a few long, yellow hairs, densely covered with slender, unbranched hairs;

filaments 9–10 mm;

anthers yellowish, oblong, 8–10 mm, apex obtuse.

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

erect, lanceoloid-linear, angled, 5–8 cm, apex acuminate.

light yellow, flat.

flat.

= 32.

= ca. 14.