Chairmaker's Bulrush, Common Bulrush, Common Threesquare, Olney's Three-square BulrushThree-square Bulrush
Schoenoplectus americanus
Synonyms: Scirpus americanus, Scirpus chilensis, Scirpus olneyi
What is possibly a patch of three square as seen along the western shore of the Deschutes River about one-half mile upstream from its confluence with the Columbia River......July 27, 2011.
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What is possibly a patch of three square as seen along the western shore of the Deschutes River about one-half mile upstream from its confluence with the Columbia River.......July 27, 2011. The similar Schoenoplectus pungens is supposedly also found at this location and I haven't yet been able to determine the difference between the two, at least from these photos.
A view of the habitat of common bulrush as seen in a permanent pond at the Friends of the Gorge's Dancing Rock property above Horsethief Butte in the eastern Columbia River Gorge.......July 17, 2009.
The photos at center and at right show close-ups of the inflorescence and single lateral bract from the same location and date.
Paul Slichter
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