Flora of North America species comparison

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

usually not branching, straight, scapelike, stout, 1–3 dm.

basal persistent, 20–35 cm;

blade gradually tapering distally, adaxially pubescent.

basal 1–3 dm × 5–15 mm, usually shorter than stem.

subumbellate, 1–3-flowered;

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

subumbellate, 1–5-flowered;

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

peduncle stout, becoming strongly deflexed in fruit.

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 or spreading;

perianth yellowish white, sometimes streaked with purple, open, campanulate;

sepals shorter than petals;

petals oblong-lanceolate, clawed, adaxial surface densely hairy, margins fringed laterally and moderately bearded on proximal 1/2 distal to claw with slender, flexuous hairs, apex acute or obtuse;

glands short, nearly round, depressed, typically bordered proximally by dark-colored, deeply fringed membrane, adaxial surface covered with short, thick hairs;

filaments shorter than or equaling anthers;

anthers lanceolate, apex long-apiculate.

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

nodding, 3-winged, ellipsoid, apex acute.

light-colored, irregular.

light brown, irregular.

= 20.

= 20.