Hordeum pusillum, also known as little barley, is an annual grass native to most of the United States and southwestern Canada. It arrived via multiple long-distance dispersals of a southern South Amer
Hordeum brachyantherum, known by the common name meadow barley, is a species of barley. It is native to western North America from Alaska to northern Mexico, coastal areas of easternmost Russia, and a
Hordeum pusillum
…a southern South American species of Hordeum about one million years ago. Its closest relatives are therefore not the other North American taxa like meadow barley (Hordeum brachyantherum) or foxtail barley (Hordeum jubatum), but rather Hordeum species of the Pampas of central Argentina and Uruguay. It is less…