[Burnets: The Genera Poteridium, Poterium and Sanguisorba in the Columbia River Gorge of Oregon and Washington]
Annual Burnet, Prairie Burnet, Western Burnet
Poteridium annuum
Synonyms: Poteridium occidentale, Sanguisorba annua, Sanguisorba
occidentalis
Note: This taxon is recognized as Poteridium occidentale in Oregon.
Annual burnet as seen around the parking area at Catherine Creek, Klickitat County, WA..........May 20, 2011.
Characteristics:
Habitat:
Range:
In the Columbia River Gorge it may be found between the elevations
of 600'-3000' between the White Salmon River and Haystack Butte.
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Close-ups of the flower heads of annual burnet as seen around the parking area at Catherine Creek, Klickitat County, WA.........May 20, 2011.
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Additional photos showing the branched inflorescence of annual burnet as well as close-ups of the mature flower heads and dissected leaves as seen in the Columbia Hills to the northeast of The Dalles, OR........July 7, 2006.
The photo above shows the basal rosette of leaves of annual burnet. Columbia Hills...........July 7, 2006. Note the glaucous cast to the pinnately compound leaves.
Paul Slichter