Flora of North America species comparison

usually not branching, stout, 2–5 dm.

usually not branching, straight or flexuous, often scapelike, 0.5–3 dm.

basal withering, 0.5–1 dm;

blade linear.

basal 1–3 dm × 2–15 mm, usually equaling or exceeding stem length;

blade flat, adaxial surface glabrous.

subumbellate, 1–3-flowered;

bracts 3–5 cm.

subumbellate, 1–5-flowered;

bracts 2–several, lanceolate to linear, unequal, 1–5 cm, apex acuminate;

peduncle slender, becoming stouter, deflexed in fruit.

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 or spreading;

perianth open, campanulate;

sepals typically with purple glandular blotch near base, oblong-lanceolate, shorter than petals, adaxial surface minutely hairy, apex acute to acuminate;

petals yellowish white, sometimes lavender-tinged, frequently with narrow purple crescent distal to gland, broadly obovate, cuneate, moderately bearded nearly to apex, adaxial surface densely hairy, margins fringed, apex obtuse or acute;

glands transversely oblong, arched upward, ± deeply depressed, bordered proximally by narrow, ascending, deeply fringed membrane, distally by narrow, crenate membranes, gland surface with rather long, slender hairs toward distal portion;

anthers lanceolate, apex long-apiculate.

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

nodding, 3-winged, ellipsoid, apex usually acute.

flat, inflated.

pale yellow.

= 14.

= 20.