Piptatherum racemosum, commonly called black-fruited mountain ricegrass or simply mountain ricegrass, is a species of grass native to the northeastern United States and southeastern Canada.

[1][2] Piptatherum racemosum is a conspicuous and easily identifiable grass with broad, shiny cauline leaves and large, long-awned spikelets.

[1][3] It grows in dry or mesic forests and woodlands.

[1] This species has a complicated taxonomic history, having been placed in various genera, most frequently Oryzopsis and Patis.

[4] The name Piptatherum racemosum is currently accepted by the Flora of North America committee, among other authorities.