Bunch-grass

any of various grasses in different regions of North America, growing in distinct clumps.
Historical Examples

Hidden Gold Wilder Anthony
Two Years in Oregon Wallis Nash
Bat Wing Bowles Dane Coolidge
Inca Land Hiram Bingham
Adventures in Alaska Samuel Hall Young
Life at Puget Sound: With Sketches of Travel in Washington Territory, British Columbia, Oregon and California Caroline C. Leighton
The Delight Makers Adolf Bandelier
The Border Boys Across the Frontier Fremont B. Deering
Life at Puget Sound: With Sketches of Travel in Washington Territory, British Columbia, Oregon and California Caroline C. Leighton
Lyman’s History of old Walla Walla County, Vol. 1 (of 2) William Denison Lyman