belonging to the genus Elymus. The squirreltail complex, Elymus section Sitanion, is composed of two species, E. multisetus (J.G. Sm.) M.E. Jones (big squirreltail) and E. elymoides (Raf.) Swezey (bottlebrush squirreltail), with E. elymoides being further divided into four subspecies: elymoides, brevifolius (J.G. Sm.) Barkworth, californicus (J ...