Carried by 7 nurseries
View Availability at NurseryData provided by the participants of the Consortium of California Herbaria
View additional distribution information on the Jepson eflora
Cyperus eragrostis is a species in the Cyperaceae (Sedge) family known by several common names, including tall flatsedge, Nutsedge and Tall Cyperus. It is almost always found in wetland-riparian areas where it can spread rapidly. It is a green sedge with tall, erect stems, and long, thin, pointed leaves. Its flowers are found within tough, rounded, greenish-yellow or beige spikelets. This species is originally native to the western United States but it has become naturalized across North America, Europe, and parts of South America and Australia. It can become a weed where it is introduced; it has been known to infest rice fields.
Grass
3 ft Tall
30 ft Wide
Fast
Evergreen
Green, Yellow
Spring, Summer, Fall
Water features or wet habitats
Full Sun
High
Keep moist
Tolerates cold to 15° F
Standing
Tolerates a variety of soils.
Soil PH: 5.0 - 8.0
Vernal pools, streambanks, ditches and other wet areas
Wetland-Riparian
Use caution in planting where it may spread out of control. Plant in constantly wet areas with other wetland-riparian trees and shrubs such as Maples (Acer spp.), Alders (Alnus spp.), Dogwood (Cornus spp.), California Walnut (Juglans californica or hindsii), Sycamore (Platanus racemosa), Cottonwood (Populus spp.), Currant/Gooseberry (Ribes spp.), wild rose (Rosa spp.), Willows (Salix spp.), and wild grape (Vitis californica or girdiana). Also works well with various other wetland grasses and grass-like plants such as Spikerush (Eleocharis spp.) and Rushes (Juncus spp.)
Butterflies and moths supported
0 confirmed and 2 likely
Javelin Moth
Bactra verutana
Dun Skipper
Euphyes vestris