This section is from the book "British Wild Flowers - In Their Natural Haunts Vol2-4", by A. R. Horwood. Also available from Amazon: A British Wild Flowers In Their Natural Haunts.
Photo. H. Irving - Squirrel Tail Grass (Hordeum maritimum, L.)
Essential Specific Characters: 337. Cynosurus echinatus, L. - Stem erect, flowers in dense raceme, the awns as long as the palea, with bristly bracts.