This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
Agrostis perennans HC. en Agrostis perennans Walter Tuck upland bentgrass caption Figure Agrostis perennans Panicle glumes and floret Millspaugh Va Note that for clarity glumes floret have been moved away from the panicle and enlarged further by factor of about or earlier HitchcockChase Collection of Grass Drawings