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Wasowski, Sally and Andy
Schoenoplectus americanus (Pers.) Volkart ex Schinz & R. Keller
Chairmaker's bulrush, Olney three-square
Synonym(s): Scirpus americanus, Scirpus chilensis, Scirpus conglomeratus, Scirpus olneyi, Scirpus pungens var. longisetus
USDA Symbol: SCAM6
Olney Three-square (Schoenoplectus americanus) reaches a height of 10 feet (3 meters). Its small spikelets are all gathered along one side of the stalk near the top.
Bloom InformationBloom Color: Yellow , Brown
Bloom Time: Apr , May , Jun , Jul , Aug
, WY Canada: BC
National Wetland Indicator Status
This information is derived from the U.S. Army Corps of Engineers National Wetland Plant List, Version 3.1
(Lichvar, R.W. 2013. The National Wetland Plant List: 2013 wetland ratings. Phytoneuron 2013-49: 1-241). Click here
for map of regions.
Record Last Modified: 2012-06-23
Research By: TWC Staff