Cyperus croceus

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Cyperus croceus
Cype croc.jpg
Photo by Casey Tompkins, Atlas of Florida Vascular Plants
Scientific classification
Kingdom: Plantae
Division: Magnoliophyta - Flowering plants
Class: Liliopsida – Monocotyledons
Order: Poales
Family: Cyperaceae
Genus: Cyperus
Species: C. croceus
Binomial name
Cyperus croceus
CYPE CROC dist.jpg
Natural range of Cyperus croceus from USDA NRCS Plants Database.

Common name: Baldwin's flatsedge

Taxonomic notes

Synonyms: Cyperus globulosus Aublet[1]

Varieties: Cyperus globosus; C. multiflorus (Britton) Small; C. retrorsus Chapman var. robustus (Böckler) Kükenthal; C. plankii Britton[1]


A description of Cyperus croceus is provided in The Flora of North America. This species is a perennial graminoid.



It is one of the first plants to appear after clear-cutting; it can appear within three years.[2]


Cyperus croceus requires a semi-tropical climate and can dwell in temperatures from -1 to 37 degrees Celsius. It prefers moist areas, including fluvial environments and floodplains, but can occur in a range of soils, from sand, to sandy peat, loam, and drying loamy sand.[3]

It can be found in mixed-pine forests,[2] upland hardwood forests, swampy woodlands, and dry ponds. It can also occur in disturbed habitat such as roadsides, citrus groves, spoil banks, and pastures.[3]

Associated species includes Alternanthera, Carex, Cephalanthus, Polygonum.[3]


C. croceus has been observed flowering and fruiting in May through November with peak inflorerscence in August.[4][3]

Fire ecology

It is fire tolerant.[3]

Conservation, cultivation, and restoration

Cultural use

Photo Gallery

References and notes

  1. 1.0 1.1 Weakley, A.S. 2020. Flora of the Southeastern United States. Edition of 20 October 2020. University of North Carolina at Chapel Hill, Chapel Hill, North Carolina.
  2. 2.0 2.1 Archer, J. K., D. L. Miller, et al. (2007). "Changes in understory vegetation and soil characteristics following silvicultural activities in a southeastern mixed pine forest." Journal of the Torrey Botanical Society 134: 489-504.
  3. 3.0 3.1 3.2 3.3 3.4 Florida State University Robert K. Godfrey Herbarium database. URL: Last accessed: June 2014. Collectors: Loran C. Anderson, Richard Carter, Angus Gholson, Robert K. Godfrey, N. C. Henderson, M. Kral, R. Kral, H. Kurz, S. W. Leonard, J. B. McFarlin, Richard S. Mitchell, P. L. Redfearn, Paul O. Schallert, H. L. Blomquist, William R. Stimson, R. A. Norris, K. E. Blum, Ed Keppner, and Lisa Keppner. States and Counties: Florida: Calhoun, Columbia, Dade, Dixie, Escambia, Franklin, Hernando, Highlands, Indian River, Jackson, Jefferson, Lamar, Leon, Liberty, Martin, Okaloosa, Orange, Palm Beach, Pasco, Santa Rosa, Seminole, St. Lucie, Sumter, Wakulla, and Walton. Georgia: Clinch
  4. Nelson, G. PanFlora: Plant data for the eastern United States with emphasis on the Southeastern Coastal Plains, Florida, and the Florida Panhandle. Accessed: 8 DEC 2016