Galapagos Species Database
The Galapagos Species Database shares the information about the species from our Natural History Collections.
Cyperus squarrosus
cyperus, bearded flatsedge, awned flatsedge, umbrella sedge
Annual plant with fibrous roots and reddish brown to brown glumes (1-1.5 mm), apex with a recurved awn. It is smooth and leaved at the basal part (Wiggins and Porter, 1971; Flora of Chine, 2010).
In wet grasslands, open margins of wet places, and wet sand (Wiggins and Porter, 1971).
Domain
Eukaryota
Kingdom
Plantae
Phylum
Magnoliophyta
Class
Liliopsida (= Monocotyledoneae)
Order
Cyperales
Family
Cyperaceae
Genus
Cyperus
Species
squarrosus
Taxon category: Accepted
Syn.: Cyperus aristatus Rottb., Cyperus inflexus Muhl. fide Royal Botanic Gardens, Kew & Missouri Botanical Garden (2010)
Origin: Native
Map of specimen collection localities or observation records for this species in our collections database.
Distribution: The native range of this species is Tropics & Subtropics to N. America (POWO, 2023).
- Andersson, N.J. (1855) Om Galápagos Öarnes Vegetation. Kongliga Svenska Vetenskaps Akademien Handl., Stockholm: 61-256.
- Eliasson, U. (1965) Studies in Galápagos Plants. II. Cyperales. Svensk Botanisk Tidskrift 59: 469-491.
- Hooker, J.D. (1847) An Enumeration of the Plants of the Galapagos Archipelago; with descriptions of those which are new. Transactions of the Linnean Society of London 20: 163-233.
- Itow, S. (1997) List of Plant Specimens collected in the Galápagos Islands, Ecuador. Bulletin of the Faculty of Liberal Arts, Nagasaki University, Natural Science, 38 (1): 53-144.
- Royal Botanic Gardens, Kew Missouri Botanical Garden (eds.) (2013) The Plant List, Version 1.1. Published on the Internet; http://www.theplantlist.org/ (accessed 1st January).
- Royal Botanic Gardens, Kew (2022) Plants of the world online POWO (2022): Plants of the world online. Published on the Internet; Https://powo.science.kew.org/
- Tropicos.org. (2017) Database of Missouri Botanical Garden. Tropicos.org. Missouri Botanical Garden. 06 Oct 2017 <http://www.tropicos.org
- Van der Werff, H.H. (s.a.) Pers. obs. and colls. Personal observations and collections.
- Wiggins, I.L. Porter, D.M. (1971) Flora of the Galapagos Islands Standford University Press, Stanford.
You are welcome to download and use the information found in this page, acknowledging its source.
This page should be cited as follows:
"Galapagos Species Database, Cyperus squarrosus", dataZone. Charles Darwin Foundation, https://datazone.darwinfoundation.org/en/checklist/?species=880. Accessed 26 May 2026.