Allium tolmiei var. tolmiei
Bulbs ovoid, not rhizomatous or oblique, forming 1–2 short rhizomes terminated by new bulbs. Leaves forming abcission layer at soil level, deciduous with scape after seeds mature or frequently breaking at that level after pressing; blade 10–35 cm. Scape deciduous, strongly flattened, winged, 5–28 cm. Umbel 10–40-flowered; spathe bracts 2. Flowers 6–12 mm; tepals erect to ± spreading, apex acute to acuminate; stamens included, 1/2–3/4 tepals; ovary crestless or obscurely to prominently crested; processes 3 or 6; pedicel 5–25 mm. 2n = 14, 28.
Phenology: Flowering Apr–Jul.
Habitat: Rocky, gravelly, or clay soils, mountains and scablands
Elevation: 400–2800 m
Calif., Idaho, Oreg., Wash.