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Scientific Investigations Report 2013–5016


Macrophyte and pH Buffering Updates to the Klamath River Water-Quality Model Upstream of Keno Dam, Oregon


Table 1. Submergent species identified at June 27–July 7, August 15–19, and October 11–13, 2011 sampling events in the Link River to Keno Dam reach of the upper Klamath River, Oregon.


[Abbreviation: –, not applicable]


Common name Species name Origin Percent of total
samples with

species present
Autumnal water-starwort Callitriche hermaphroditica native 0.5
Coontail Ceratophyllum demersum native 27.6
Common waterweed Elodea canadensis native 22.7
Yellow water flag Iris pseudacorus non-native 0.1
Common water nymph Najas guadalupensis native 0.3
Water cress Nasturtium officinale native 0.1
Curlyleaf pondweed Potamogeton crispus non-native 21.0
Small pondweed Potamogeton pusillus native 35.7
Hardstem bulrush Schoenoplectus acutus native 0.7
Giant burweed Sparganium eurycarpum native 0.4
Cattail Typha sp. native 0.1
Horned pondweed Zannichelia palustris native 6.4
Filamentous green algae native 18.7

First posted March 1, 2013

For additional information contact:
Director, Oregon Water Science Center
U.S. Geological Survey
2130 SW 5th Avenue
Portland, Oregon 97201
http://or.water.usgs.gov

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