Oryzopsis pungens Piptatherum pungens, also called Oryzopsis pungens, commonly called slender mountain-ricegrass, ricegrass, northern ricegrass, or slender mountain-rice, is a plant found in North America.

[1] It is listed as endangered in Connecticut,[2] Iowa, New Jersey, and Pennsylvania.

It is listed as extirpated in Indiana, as a special concern in Rhode Island, and as threatened in Vermont.

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