| Taxon | Collector | Location | Type Status | Barcode | |
|---|---|---|---|---|---|
| Cyperus laxus Lam. | D. B. Ward 7914 18 Jun 1971 | Mexico. Veracruz. Moist shaded side of trial, on slope below saddle on s.e. ridge of Volcan San Martin Tuxtla, s.e. of road between Catemaco and Sonte-comapan. | 668392 | ||
| Cyperus laxus Lam. | B. D. Sucre 8756 with T. Soderstron, 28 Mar 1972 | Brazil. Rio de Janeiro. Estado da Guanabara, Represa do Piraraquara, Realengo. | 622596 |  | |
| Cyperus laxus Lam. | F. W. Hunnewell 18519 15 Nov 1946 | Brazil. Rio de Janeiro. Damp ground, Corcovado. | 622594 |  | |
| Cyperus mundulus Kunth | Martii Herbar. Florae Brasil. 230 s.d. | Brazil. Prope Sebastianopolis. | 622747 |  | |
| Cyperus mundulus Kunth | P. von Luetzelburg 15480 Apr 1911 | Brazil. Rio de Janeiro. Brasilia: Rio, bei Petropolis. Sumpfraus. | 622748 |  | |
| Cyperus mundulus Kunth | Martii Herbar. Florae Brasil. 187 s.d. | Brazil. Rio de Janeiro. Prope Rio de Janeiro. | 622746 |  | |
| Cyperus lenticularis (Schrad.) Steud. | E. W. D. Holway 1601 27 Feb 1922 | Brazil. São Paulo. Lapa, Sao Paulo. | 622741 |  | |
| Cyperus sallidifolius Britton | N. L. Britton 580 with E. G. Britton & J. A. Shafer, 25 Mar 1903 | Cuba. Empalme. | type | 11753 |  |
| Cyperus neotropicalis Alain | B. J. Pickel 2448 24 Aug 1933 | Brazil. Pernambuco. In wet place, Tapera. | 622965 |  | |
| Cyperus neotropicalis Alain | F. J. Fernández Casas FC5901 with J. Molero, 04 Feb 1982 | Paraguay. Canindeyú. Salida de Curuguaty hacia el Norte, a unos 5 km, en prados. | 637140 | ||
| Cyperus polystachyos var. laxus Kuntze | C. E. O. Kuntze 6125 Oct 1875 | Singapore. | holotype | 11802 |  |
| Cyperus schweinitzii var. debilis Britton | J. M. Bigelow 1-2 | United States of America. New Mexico. Copper mines. | 11702 |  | |
| Cyperus consors C.B.Clarke | M. Sobral 5959 Nov 1988 | Brazil. Rio Grande do Sul. Cerro Comprido, Faxinal do Soturno. | 622444 |  | |
| Cyperus consors C.B.Clarke | N. Hensold CFCR 3540 with A. M. Giulietti, M. C. H. Mamede e N. Giulietti, 23 May 1982 | Brazil. Mato Grosso. Prox. da ponte sobre o rio das Mortes. Beira do rio. | 668655 |  | |
| Cyperus tener (C.B.Clarke) Osten ex Herter | H. M. Longhi-Wagner 2549 with S. Miotto, 18 Apr 1993 | Brazil. Rio Grande do Sul. Imbé. | 622724 |  | |
| Cyperus urbanii Boeckeler | P. E. E. Sintenis 2929 02 Dec 1885 | Puerto Rico. Prope Aybonito in lectivibui graminosis ad Cari-blanco [spelling ?]. | isotype | 11758 |  |
| Cyperus giganteus Vahl | P. C. Orth 682 25 Oct 1937 | Brazil. Rio Grande do Sul. In paludosis, Esteio. | 622677 |  | |
| Cyperus giganteus Vahl | C. D. Játiva 2123 with Carl Epling, 05 Aug 1967 | Ecuador. Esmeraldas. Near Borbon, abundant along river banks. | 668444 | ||
| Cyperus giganteus Vahl | R. McVaugh 19742 with Charles Feddema and Richard W. Pippen, 01 Oct 1960 | Mexico. Jalisco. Swampy areas near sea level, just north of Barra de Navidad, along a small stream. | 668441 | ||
| Cyperus giganteus Vahl | P. von Luetzelburg 7317 May 1917 | Brazil. Rio de Janeiro. Rio Gougojoco. | 622678 |  |