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Taxon  Report  
Cyperus difformis  L.
Variable flatsedge
Cyperus difformis is an annual grasslike herb that is not native to California.
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Bloom Period
Genus: Cyperus
Family: Cyperaceae  
Category: angiosperm  
PLANTS group:Monocot
Jepson eFlora section: monocot

Toxicity: Do not eat any part of this plant.

Wetlands: Occurs in wetlands

Habitat: disturbed

Communities: wetland-riparian, weed, characteristic of disturbed places

Name Status:
Accepted by JEF + PLANTS

Information about  Cyperus difformis from other sources

[Wikipedia] Native to Europe, Africa, Asia, Australia; Description: Cyperus difformis is a species of sedge known by several common names, including variable flatsedge,[2] smallflower umbrella-sedge and rice sedge.[3] This plant is native to southern Europe, most of Africa and Asia, and Australia, and it is naturalized in other areas of the world, including large parts of the Americas.[1][4][5][6][7][8][9][10][11][12] Cyperus difformis is a plant of aquatic and moist habitats. It is a weed of rice fields, but not generally a troublesome one. This is an annual herb with one to many thin, soft erect stems reaching over 30 centimeters in maximum height. There are usually a few long, wispy leaves around the base of the plant. The inflorescence is a rounded bundle one to three centimeters wide, containing up to 120 spikelets, each long and partially or entirely covered in up to 30 bracted flowers. The flowers are light brown with areas darker brown and sometimes a yellowish or purplish tint.[13][14] (contributed by Mary Ann Machi)


Suggested Citation
Calflora: Information on California plants for education, research and conservation, with data contributed by public and private institutions and individuals. [web application]. 2024. Berkeley, California: The Calflora Database [a non-profit organization]. Available: https://www.calflora.org/   (Accessed: 03/28/2024).