Dog zone grasses!

Urban habitats are many and varied!  Take the area around the base of lamp posts and street trees for example.  These familiar places are somewhat un-picturesquely, though very accurately, described the “dog zone”! This is a great habitat for various weeds which flourish because of what dogs do in the dog zone! One of them is the aptly named grass, Wall Barley (Hordeum murinum), in the Poaceae tribe Triticeae, now posted in Dr M’s ongoing series!