Flora of North America species comparison

1–3+, not clustered on stout primary rhizome, rhizomes absent, renewal bulbs formed within coats of parent bulb, increase bulbs absent or 1–2, ± equaling parent bulbs, never appearing as basal cluster, ovoid, 1–2 cm × 8–15 mm;

outer coats grayish to brownish, membranous, lacking cellular reticulation or cells arranged in only 2–3 rows distal to roots, ± quadrate, without fibers;

inner coats white, cells absent or ± quadrate.

1–6+, replaced annually with new bulbs borne terminally on rhizomes;

rhizomes 1–2, secondary, short;

parent bulb disappearing by anthesis except for still-functional roots and shriveled bulb coat, oblique-ovoid, 1–2 × 0.8–1.8 cm;

outer coats not or only partially enclosing bulbs, brown to gray-brown, membranous, lacking cellular reticulation or cells arranged in only 2–3 rows distal to roots, ± quadrate, without fibers;

inner coats white, cells very obscurely quadrate or not visible.

usually deciduous with scape, 2, basally sheathing, sheaths not extending much above soil surface;

blade solid, flat, strongly falcate, 5–18 cm × 1–2 mm, margins entire.

usually deciduous with scape, withering from tip at anthesis, (1–)2, basally sheathing, sheaths not extending much above soil surface;

blade solid, flat, falcate, 10–33 cm × 1.5–10 mm, margins sometimes minutely denticulate.

usually forming abcission layer and deciduous with leaves after seeds mature, frequently breaking at this level after pressing, solitary, erect, solid, flattened, slightly 2-edged, 3–7 cm × 1–3 mm.

usually forming abcission layer and deciduous with leaves after seeds mature, frequently breaking at this level after pressing, solitary, ± erect, solid, flattened, winged distally, wings frequently crenulate proximal to umbel, 5–15 cm × 1–5 mm.

deciduous with scape, erect, compact, 5–12-flowered, hemispheric, bulbils unknown;

spathe bracts persistent, 2, 5–8-veined, ovate, ± equal, apex abruptly acute.

persistent, erect, compact, 10–25-flowered, conic to hemispheric, bulbils unknown;

spathe bracts persistent, 2, 8–10-veined, lanceolate, ± equal, apex acute.

campanulate, 7–9 mm;

tepals erect, white to pale pink with red midribs, oblong, ± equal, becoming papery and not carinate in fruit, margins entire, apex obtuse;

stamens included;

anthers purple;

pollen gray or yellow;

ovary ± distinctly crested;

processes 3 or 6, central, low, rounded, margins entire;

style included, linear;

stigma capitate, unlobed;

pedicel 3–12 mm.

campanulate, 6–12 mm;

tepals erect, pinkish with deeper pink midveins, lanceolate, ± equal, becoming papery in fruit, margins entire, apex acute;

stamens included;

anthers yellow or purple;

pollen yellow;

ovary obscurely crested;

processes 3, central, 2-lobed, minute, margins entire;

style linear, equaling stamens;

stigma capitate, scarcely thickened, unlobed;

pedicel 6–16 mm.

coat dull;

cells smooth.

coat shining;

cells smooth.

= 14.

= 14.