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grass Glumeless wlldrye Endemic Synonyms: Hystrix patula var. bigeloviana Hystrix patula Elymus hystrix var. bigelovianus Treatment appears in FNA Volume

Barkworth, Julian J.N. Campbell, Bjorn Salomon Endemic Synonyms: Sitanion hystrix var. hordeoides Treatment appears in FNA Volume 24. Treatment on page 319

Longleaf squirreltail Endemic Synonyms: Sitanion hystrix var. brevifolium Elymus longifolius Elymus elymoides var. longifolius Treatment appears in FNA Volume

Salomon Common names: California squirreltail Endemic Synonyms: Sitanion hystrix var. californicum Sitanion californicum Treatment appears in FNA Volume 24

Bjorn Salomon Common names: Southwestern wildrye Synonyms: Elymus canadensis var. interruptus Treatment appears in FNA Volume 24. Treatment on page 306. Illustrator:

may have originated from hybrids between E. canadensis var. canadensis (p. 305) and E. hystrix (see next), although part of its range extends further west

genusElymus speciesElymus canadensis Show Lower Taxa Elymus canadensis var. brachystachys, Elymus canadensis var. canadensis, Elymus canadensis var. robustus

wildrye Synonyms: Elymus virginicus var. glabriflorus Elymus virginicus var. australis Australis Elymus glabriflorus var. australis Elymus australis Treatment

at the limits of its range. Elymus macregorii hybridizes with several species, but especially E. virginicus and E. hystrix (p. 316) (Campbell 2000). Western

occasionally with several other taxa, especially E. virginicus var. virginicus (p. 300) and E. hystrix (p. 316), but the hybrids produce only late, depauperate

ponderosa changes from var. scopulorum in the north to var. arizonica in the south. In Arizona and New Mexico, Picea engelmanii and Abies bifolia "var. arizonica"