Description: English: Drawing of a grass flower. Date: 1950. Source: https://plants.usda.gov/java/largeImage?imageID=bora_001_avd.tif. Author: USDA-NRCS PLANTS Database / Hitchcock, A.S. (rev. A. Chase). 1950. Manual of the grasses of the United States. USDA Miscellaneous Publication No. 200. Washington, DC.