Meadow Barley, Northern Meadow Barley: Hordeum brachyantherum ssp. brachyantherum (Synonyms: Critesion brachyantherum, Critesion jubatum ssp. breviaristatum, Hordeum boreale, Hordeum jubatum ssp. breviaristatum, Hordeum jubatum var. boreale, Hordeum nodosum, Hordeum nodosum var. boreale)
California Barley: Hordeum brachyantherum ssp. californicum (Synonyms: Critesion californicum, Hordeum californicum)
Dwarf Barley, Low Barley: Hordeum depressum (Synonym: Critesion depressum)
Foxtail Barley, Squirreltail: Hordeum jubatum ssp. jubatum (Synonyms: Critesion jubatum, Hordeum jubatum var. jubatum)
Mediterranean Barley: Hordeum marinum ssp. gussoneanum (Synonyms: Critesion geniculatum, Critesion hystrix, Critesion marinum ssp. gussonianum, Hordeum geniculatum, Hordeum gussoneanum, Hordeum hystrix)
Seagreen Barley, Smooth Barley: Hordeum murinum ssp. glaucum (Synonyms: Critesion glaucum, Crietesion murinum ssp. glaucum, Hordeum glaucum, Hordeum stebbinsii)
Charming Barley, Hare Barley, Mouse Barley: Hordeum murinum ssp. leporinum (Synonyms: Critesion murinum ssp. leporinum, Hordeum leporinum)
Farmer's Foxtail, Wall Barley, Way Barley: Hordeum murinum ssp. murinum (Synonym: Critesion murinum)
Little Barley: Hordeum pusillum (Synonyms: Critesion pusillum, Hordeum pusillum var. pubens)
Barley, Common Barley: Hordeum vulgare (Synonyms: Hordeum aegiceras, Hordeum distichon, Hordeum hexastichon, Hordeum hexastichum, Hordeum irregulare, Hordeum sativum, Hordeum vulgare ssp. hexastichon, Hordeum vulgare ssp. vulgare, Hordeum vulgare var. trifurcatum)