Adrian Davies / Cocksfoot grass (Dactylis glomerata) dispersing pollen in the wind, UK. June.

Nigel Cattlin / Cocksfoot (Dactylis glomerata) grass flowering spikelets with purple anthers extended, Berkshire, UK. June.

Nigel Cattlin / Cocksfoot (Dactylis glomerata) grass flowering spikelets with purple anthers extended, Berkshire, UK. June.

Nigel Cattlin / Cocksfoot (Dactylis glomerata) grass flowering spikelets with purple anthers extended, Berkshire, UK. June.

Ross Hoddinott / Small skipper butterfly (Thymelicus sylvestris) resting on Cocksfoot (Dactylis glomerata) grass head. Green Down Somerset Wildlife Trust Reserve, England, UK. June.

Nick Upton / Cock's foot grass (Dactylis glomerata) flowering on chalk grassland, Great Cheverell Hill, Salisbury Plain, Wiltshire, UK, May.

Linda Pitkin / Cock's-foot (Dactylis glomerata) plant in flower, Horton Country Park, Surrey, England, May.