[Burnets: The Genera Poteridium, Poterium and Sanguisorba West of the Cascade Mountains of Oregon and Washington]
Annual Burnet, Prairie Burnet, Western Burnet
Poteridium occidentale
Synonyms: Poteridium annuum, Sanguisorba annua, Sanguisorba occidentalis
![Annual Burnet, Prairie Burnet, Western Burnet: Poteridium occidentale (Synonyms: Poteridium annuum, Sanguisorba annua, Sanguisorba occidentalis)](../../../../gorge/5petal/rose/sanguisorba/occidentalis/occidentalis3c.jpg)
Annual burnet as seen around the parking area at Catherine Creek, Klickitat County, WA..........May 20, 2011.
Range:
In the Columbia River Gorge it may be found between the elevations
of 600'-3000' between the White Salmon River and Haystack Butte.
- ![Close-up of a flower head of Annual Burnet, Prairie Burnet, Western Burnet: Poteridium occidentale (Synonyms: Poteridium annuum, Sanguisorba annua, Sanguisorba occidentalis)](../../../../gorge/5petal/rose/sanguisorba/occidentalis/occidentalis3b.jpg)
Close-ups of the flower heads of annual burnet as seen around the parking area at Catherine Creek, Klickitat County, WA.........May 20, 2011.
- ![Annual Burnet, Prairie Burnet, Western Burnet: Poteridium occidentale (Synonyms: Poteridium annuum, Sanguisorba annua, Sanguisorba occidentalis)](../../../../gorge/5petal/rose/sanguisorba/occidentalis/sanguisorbaoccid2c.jpg)
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.
![Basal leaf rosette of Annual Burnet, Prairie Burnet, Western Burnet: Poteridium occidentale (Synonyms: Poteridium annuum, Sanguisorba annua, Sanguisorba occidentalis)](../../../../gorge/5petal/rose/sanguisorba/occidentalis/sanguisorbaoccid2a.jpg)
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