Taxa: Hordeum brachyantherum, Hordeum brachyantherum ssp. brachyantherum (Critesion jubatum ssp. breviaristatum, Hordeum jubatum ssp. breviaristatum, Hordeum jubatum var. boreale, Hordeum nodosum var. boreale, Critesion brachyantherum, Hordeum boreale, Hordeum nodosum), Hordeum brachyantherum ssp. califor
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