Bulbs 2-20+, clustered on thick, iris-like rhizome, elongate, 2-5 × 1-2.5 cm; outer coats enclosing 1 or more bulbs, brownish, membranous, minutely striate, cells in regular vertical rows, elongate, not fibrous-reticulate, fibers persistent, parallel, few, coarse; inner coats reddish purple or whitish, minutely striate, cells in regular vertical rows, elongate. Leaves persistent, green at anthesis, 3-6, sheathing basally, sheaths not extending much above soil surface; blade solid, flat, 20-70(-80) cm × 4-15 mm, margins entire. Scape persistent, solitary, erect, solid, flattened and narrowly winged distally, 30-70 cm × 2-7 mm. Umbel persistent, erect, compact, 15-30-flowered, hemispheric, bulbils unknown; spathe bracts persistent, 2, 3-5-veined, broadly ovate, ± equal, apex acute. Flowers ± campanulate, 8-10 mm; tepals erect to ± spreading, pink, narrowly lanceolate, ± equal, withering in fruit, margins entire, apex acuminate, midribs scarcely thickened; stamens exerted; anthers yellow or purple; pollen yellow; ovary crestless; style exserted, linear, longer than stamens; stigma capitate, unlobed; pedicel 10-15 mm, elongating and becoming stout in fruit. Seed coat dull; cells smooth or minutely roughened. 2n = 28, 56.

Flowering Jun--Aug. Swampy meadows in mountains; 1500--2900 m; B.C.; Calif., Idaho, Nev., Oreg., Wash.

Allium validum is a Cascade-Sierran species extending east to northeastern Nevada, eastern Oregon, and western Idaho.