Allium howellii

Bulbs usually solitary, not clustered on stout, primary rhizome, ovoid to ± globose, 0.9-1.7 × 0.8-2 cm; outer coats enclosing bulb, dark reddish brown, membranous, lacking cellular reticulation or cells arranged in only 2-3 rows distal to roots, ± quadrate, without fibers; inner coats light brown to white, cells obscure, quadrate. Leaves persistent, withering from tip by anthesis, 1, basally sheathing, sheath not extending much above soil surface; blade solid, terete, 20-55 cm × 1-4 mm. Scape persistent, solitary, erect, solid, terete, 15-60 cm × 1-3.5 mm. Umbel persistent, erect, compact, 15-100-flowered, hemispheric, bulbils unknown; spathe bracts persistent, 2-4, 5-8-veined, lanceolate to broadly ovate, ± equal, apex mucronate to acuminate or long-acuminate. Flowers stellate to ± campanulate, 5-8 mm; tepals spreading to ± erect, white to pink or pale lavender with darker midveins, ovate to oblong, ± equal, becoming papery in fruit, margins entire, apex obtuse; stamens ± equaling tepals to long-exserted; anthers yellow or purple; pollen yellow; ovary crested; processes 6, prominent, ± triangular, margins ± irregularly denticulate to laciniate; style linear, equaling stamens or longer; stigma capitate, 3-lobed, lobes slender, recurved; pedicel 6-25 mm. Seed coat dull or shining; cells minutely roughened.