[Hairgrasses: The Genus Aira West of the Cascade Mountains of Oregon and Washington]

Annual Silver Hairgrass, Silver Hairgrass, Silver Hair-grass

Aira caryophyllea var. caryophyllea

Synonyms: Aira caryophyllea, Aira caryophyllea var. caryophyllea, Aspris caryophyllea

Inflorescence of Annual Silver Hairgrass, Silver Hairgrass, Silver Hair-grass: Aira caryophyllea var. caryophyllea (Synonyms: Aira caryophyllea, Aira caryophyllea var. caryophyllea, Aspris caryophyllea)

The inflorescence of silver hairgrass as seen along the Springwater Trail at the southeast corner of Powell Butte in west Gresham, OR..........May 23, 2011.

Annual Silver Hairgrass, Silver Hairgrass, Silver Hair-grass: Aira caryophyllea var. caryophyllea (Synonyms: Aira caryophyllea, Aira caryophyllea var. caryophyllea, Aspris caryophyllea)

The inflorescence of silver hairgrass as seen along the Springwater Trail at the southeast corner of Powell Butte in west Gresham, OR..............May 23, 2011.

Paul Slichter