By Ray Maleike; Marianne Ophardt; Sharon Collman; Washington State University. Cooperative Extension
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Allium nevadense S. Watson Also described earlier (in the section on "Western Alliums with a Single Leaf") is Allium nevadense, which occurs in the desert mountains of southeastern California. CNPS regards the pursuit of state listing of A. nevadense mandatory because of its limited occurrence within California. Allium parishii S. Watson This species is found in the Mohave Desert and east into western Arizona. It is more common within California than Allium nevadense and is not a likely candidate for listing by CNPS.
Mannii, with clustered bulbs, white flowers, and 30-centimeter tall green leaves, said to grow in standing water but hardy and easy in normal garden conditions; A. glandulosum in the true type form from central Mexico with maroon-red flowers; and an unidentified rhizomatous species, said to be tall-growing with white, purpletinged flowers, and to inhabit wet soil. Perhaps someday the Mexican alliums will be better understood and grown in gardens. Since at least a couple bloom in fall, they would be welcome additions, even if they prove so tender that they have to be kept in frames or alpine houses.
Allium textile A. Nelson & J. F. Macbride Another ubiquitous onion of the West, found growing in dry soils or heavy clay that is vernally moist but bakes during the summer, is Allium textile (synonyms A. aridum, A. geyeri var. textile, A. reticulatum). It appears not to be amenable to cultivation, but it is not missed: it is not showy. Allium textile has a pair of basal green leaves and a small head of starry whitish flowers with reddish-brown midribs on a 15-centimeter stem. In Idaho it forms expansive colonies, growing thickly enough to create an alliaceous ground cover.