Kevin Schafer / Tickseed (Coreopsis calliopsidea) and Foxtail (Vulpia sp), Carrizo Plain National Monument, California

Tim Fitzharris / Indian Paintbrush (Castilleja coccinea) and Foxtail Barley (Critesion jubatum) field, Texas

Tim Fitzharris / Squirreltail Barley (Hordeum jubatum) among wind and rain eroded tufa towers, Mono Lake, California

Tim Fitzharris / Squirreltail Barley (Hordeum jubatum) and Tufa Towers silhouetted at dawn, Mono Lake, California

TOM MANGELSEN / Yarrow {Achillea millefolium} and foxtail grass, Grand Teton NP, Wyoming, USA

Tim Fitzharris / Paintbrush (Castilleja sp) and Bulbous Barley (Hordeum murinum), Hill Country, Texas

Linda Pitkin / Marsh foxtail (Alopecurus geniculatus) in flower. Surrey, UK. July.

Nigel Cattlin / Blackgrass (Alopecurus myosuroides) seedling, arable annual grass weed with a single tiller.

Nigel Cattlin / Green foxtail (Setaria viridis) bowing heads of flowering grass weeds in a Soybean (Glycine max) crop, Illinois, USA.

Linda Pitkin / Meadow foxtail (Alopecurus pratensis), in a meadow, Horton Country Park, Surrey, England, May.

Linda Pitkin / Orange foxtail (Alopecurus aequalis), locally rare plant, at edge of pond, Nore Hill, Surrey, England, June.

Linda Pitkin / Meadow foxtail (Alopecurus pratensis) in flower, Horton Country Park, Epsom, Surrey, England, May.