desert wheatgrass foxtail barley blue sky copy space

desert wheatgrass foxtail barley foxtail blue sky copy space invasive grass weed hordeum murinum morongo valley california annual grasslike awns botany spikelets spiky background wallpaper habitat bobtail squirrel tail leaves seeds gold hordeum wild closeup nature plant summer clear countryside dry herb grass flora fall environment ecology yellow brown blue minimal autumn mojave desert sky