[The Genus Microseris in the Columbia River Gorge]

Lindley's Annual Microseris, Lindley's Silverpuffs, Linearleaf Microseris, Silver puffs

Uropappus lindleyi

Synonyms: Microseris lindleyi, Microseris linearifolia, Uropappus linearifolius

Flower head of Lindley's Annual Microseris, Lindley's Silverpuffs, Linearleaf Microseris, Silver puffs: Uropappus lindleyi (Synonyms: Microseris lindleyi, Microseris linearifolia, Uropappus linearifolius)

A close-up of the flower head of Lindley's annual microseris as seen at Catherine Creek in the Columbia River Gorge................May 10, 2009. The rays are generally a brighter yellow than what are shown here.

Involucral bracts of Lindley's Annual Microseris, Lindley's Silverpuffs, Linearleaf Microseris, Silver puffs: Uropappus lindleyi (Synonyms: Microseris lindleyi, Microseris linearifolia, Uropappus linearifolius)

A close-up of the glabrous involucral bracts of Lindley's annual microseris as seen at Catherine Creek in the Columbia River Gorge................May 10, 2009.

Basal leaf of Lindley's Annual Microseris, Lindley's Silverpuffs, Linearleaf Microseris, Silver puffs: Uropappus lindleyi (Synonyms: Microseris lindleyi, Microseris linearifolia, Uropappus linearifolius)

A basal leaf of Lindley's annual microseris as seen at Catherine Creek in the Columbia River Gorge................May 10, 2009. Some basal leaves have margins that are nearly entire, while others may have longer (but narrow) lobes than the ones seen here.

Lindley's Annual Microseris, Lindley's Silverpuffs, Linearleaf Microseris, Silver puffs: Uropappus lindleyi (Synonyms: Microseris lindleyi, Microseris linearifolia, Uropappus linearifolius)

Lindley's annual microseris as seen at the base of basalt cliffs at Catherine Creek in the Columbia River Gorge......................May 10, 2009.

Flower head of Lindley's Annual Microseris, Lindley's Silverpuffs, Linearleaf Microseris, Silver puffs: Uropappus lindleyi (Synonyms: Microseris lindleyi, Microseris linearifolia, Uropappus linearifolius) - Involucral bracts of Lindley's Annual Microseris, Lindley's Silverpuffs, Linearleaf Microseris, Silver puffs: Uropappus lindleyi (Synonyms: Microseris lindleyi, Microseris linearifolia, Uropappus linearifolius)

Additional views of the flower head and involucral bracts of Lindley's annual microseris as seen along Old Highway 8 at the base of the Labyrinth, mid-Columbia River Gorge...................April 15, 2010.

Paul Slichter