Danthonia unispicata
Encyclopedia
Danthonia unispicata is a species of grass
Poaceae
The Poaceae is a large and nearly ubiquitous family of flowering plants. Members of this family are commonly called grasses, although the term "grass" is also applied to plants that are not in the Poaceae lineage, including the rushes and sedges...

 known by the common name onespike oatgrass, or onespike danthonia.

It is sometimes treated as a variety of Danthonia californica
Danthonia californica
Danthonia californica is a species of grass known by the common name California oatgrass. This plant is native to two separate regions of the Americas, western North America from California to Saskatchewan, and Chile.-Description:...

, to which it is similar. It is native to western North America, where it grows in several types of habitat, including grassland and open areas in mountain forests.

It is a perennial bunchgrass growing in clumps 10 to 30 centimeters tall, with very hairy, rolled leaves. The inflorescence
Inflorescence
An inflorescence is a group or cluster of flowers arranged on a stem that is composed of a main branch or a complicated arrangement of branches. Strictly, it is the part of the shoot of seed plants where flowers are formed and which is accordingly modified...

bears a single spikelet, or sometimes up to four spikelets.

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