Little Barley
Hordeum pusillum Nutt.
Hordeum pusillum, commonly known as Little Barley, is an annual grass native to much of the United States and southwestern Canada. It is part of the Poaceae family and is diploid. The species originated from long-distance dispersals of a southern South American Hordeum species approximately one million years ago. Its closest relatives are found in the Pampas region of central Argentina and Uruguay, rather than other North American Hordeum species. It diverged from Old World domesticated barley about 12 million years ago.
Description
Hordeum pusillum is an annual grass in the Poaceae family. It is found in regions including Alberta, British Columbia, Ontario, Saskatchewan, Belgium, France, The Netherlands, Great Britain, Japan, and parts of the United States. The species is diploid and is closely related to Hordeum species in the Pampas of Argentina and Uruguay. It is not closely related to other North American Hordeum species such as meadow barley or foxtail barley, nor to Old World domesticated barley. The species was first described in 1818 by Nutt.
Other common names
Little Barleylittle wild barleylittle foxtail barley
Distribution
Alberta · British Columbia · Ontario · Saskatchewan · Belgium · Flemish Region · France · The Netherlands · Great Britain · England · SE · Jeju Island · Global · JP · CA · Alabama · Argentina Northeast · Argentina Northwest · Argentina South · Arizona · Arkansas · Bermuda · California · Colorado · Connecticut · Delaware · District of Columbia · Florida · Georgia · Idaho
Synonyms
Critesion pusillumHordeum intercedensHordeum pusillum var. pubensHordeum riehliiHordeum pusillum var. pusillumHordeum pusillum subsp. pusillum