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Black Flatsedge
Cyperus niger
About Black Flatsedge (Cyperus niger) 0 Nurseries Carry This Plant Cyperus niger is a species of sedge known by the common name black flatsedge. This plant is native to the Americas, where it can be found in wet areas from South and Central America to the southwestern United States, from California and Oklahoma south to Argentina. Cyperus niger is a perennial herb with small, wispy rhizomes. There may be a few long, thin leaves around the base of the plant. The thin stems often grow bunched together and may reach half a meter in height. The inflorescence contains a few to over 20 spikelets, each under a centimeter long, flat, and containing usually fewer than ten flowers. Each flower is covered by an oval-shaped dark brown or greenish bract. The fruit is a discoid achene just over a millimeter long.
Plant Description
Plant Type
Plant Type

1.6 ft tall

Flower Color
Flower Color

Wildlife Supported

Butterflies & moths hosted ( 2 likely * ) SHOW ALL

Landscaping Information
Natural Setting
Annual Precipitation: 5.7" - 109.2", Summer Precipitation: 0.17" - 3.99", Coldest Month: 31.3" - 56.4", Hottest Month: 54.2" - 83.7", Humidity: 0.39" - 34.50", Elevation: 3" - 6822"

Sources include: Wikipedia. All text shown in the "About" section of these pages is available under the Creative Commons Attribution-ShareAlike License. Plant observation data provided by the participants of the California Consortia of Herbaria, Sunset information provided by Jepson Flora Project. Propogation from seed information provided by the Santa Barbara Botanical Garden from "Seed Propagation of Native California Plants" by Dara E. Emery. Sources of plant photos include CalPhotos, Wikimedia Commons, and independent plant photographers who have agreed to share their images with Calscape. Other general sources of information include Calflora, CNPS Manual of Vegetation Online, Jepson Flora Project, Las Pilitas, Theodore Payne, Tree of Life, The Xerces Society, and information provided by CNPS volunteer editors, with special thanks to Don Rideout. Climate data used in creation of plant range maps is from PRISM Climate Group, Oregon State University, using 30 year (1981-2010) annual "normals" at an 800 meter spatial resolution.

Links:   Jepson eFlora Taxon Page  CalPhotos  Wikipedia  Calflora

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