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Common (vernacular) names applied to California vascular plants

compiled by Elizabeth Painter

up to date as of May 1, 2016

Common names (also referred to as vernacular names) are applied differently at different times and places by different users. This list is compiled from many sources and is intended to be as comprehensive as possible. It is not intended to indicate which common name is correct or preferred. Please send comments about this page to Elizabeth Painter (

TaxonCyperus iria
Family common name(s)sedge; sedges; bulrush
Genus common name(s)cyperus; cypress-grass; cypress grass; flat-sedge; flat sedge; flatsedge
Species common name(s)iria flat-sedge; iria flat sedge; iria flatsedge; rice flat-sedge; rice flat sedge; rice flatsedge; grasshopper's cyperus
Common name(s) generally applied to other taxa or multiple taxaricefield flat-sedge, ricefield flat sedge, ricefield flatsedge, rice-field flatsedge, rice sedge, yellow cyperus are applied to multiple Cyperus taxa; nut-sedge, nut sedge, nutsedge, umbrella sedge, umbrella-sedge, umbrellasedge, variable sedge are applied to multiple Cyperaceae taxa; rice weed, umbrella-plant, umbrella plant, umbrellaplant, umbrella-grass, umbrella grass, nut grass, nut-grass, nutgrass are applied to taxa in multiple families
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