Pleuropogon oregonus

Pleuropogon oregonus is a species of grass known by the common name Oregon semaphoregrass. It is endemic to Oregon in the United States, where there are only two populations. It has been called "one of the rarest grasses in North America."

Pleuropogon oregonus

Pleuropogon oregonus is a species of grass known by the common name Oregon semaphoregrass. It is endemic to Oregon in the United States, where there are only two populations. It has been called "one of the rarest grasses in North America."