Cyperus retrofractus

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Distribution Map: Based on vouchered plant specimens only. View county names by placing the mouse cursor over a particular county.

Species Distribution Map
Family:CYPERACEAE
Species:Cyperus retrofractus (L.) Torr.
Common Name:Rough Flatsedge; Teasel Flatsedge
Habitat:**
Associated Ecological Communities:**
Growth Habit:Herb
Duration:Perennial
Category:Vascular
USDA Symbol:**
Plant Notes:**
Taxonomic Notes:**
Status:Native
References:**
Specimen: View specimen details in the Alabama Herbarium Consortium Specimen Database

** Not applicable or data not available.

Classification

FamilyCYPERACEAE - Sedge family
Genus Cyperus
Species Cyperus retrofractus (L.) Torr. - Rough Flatsedge; Teasel Flatsedge

Citation

Citation Cyperus retrofractus (Linnaeus) Torrey, Manual 519. 1848.
Basionym: Scirpus retrofractus L. 1753.
Type: USA: VIRGINIA: Without data, Clayton 457 (lectotype: LINN 71.36). Lectotypified by Fernald, Rhodora 47: 111, pl. 878. 1945.

** Not applicable or data not available.

Synonyms

SynonymFull CitationBasionymType
Cyperus retrofractus var. dipsaciformis Cyperus retrofractus (Linnaeus) Torrey ex A. Gray, var. dipsaciformis (Fernald) Kükenthal, in Engler, Pflanzenr. 4(Heft 101): 509. 1936.Cyperus dipsaciformis Fernald 1906. 
Mariscus retrofractus Mariscus retrofractus (Linnaeus) Vahl, Enum. Pl. 2: 375. 1805.Scirpus retrofractus Linnaeus 1753. 
Scirpus retrofractus Scirpus retrofractus Linnaeus, Sp. Pl. 50. 1753. VIRGINIA: Without data, Clayton 457 (lectotype: LINN 71.36). Lectotypified by Fernald, Rhodora 47: 111, pl. 878. 1945.
Cyperus dipsaciformis Cyperus dipsaciformis Fernald, Rhodora 8: 127. 1906. DISTRICT OF COLUMBIA: Washington, 22 Jul 1896, Steele s.n. (holotype: GH; isotype: US).
Cyperus retrofractus var. dipsaciformis    

Specimens and Distribution

This species has been reported in the following counties by the herbaria listed. An overview of the individual specimens are provided in the table that follows. Click on the accession number to view details; click on column headers to sort; choose a county or herbaria to filter the specimen data.

Counties included on distribution map: Autauga, Bibb, Bullock, Butler, Crenshaw, Cullman, Dale, DeKalb, Escambia, Etowah, Lamar, Marshall, Mobile, Montgomery, Sumter

Counties represented by specimen data listed below:

Herbaria represented by specimen data listed below: ALNHS, AUA, JSU, TROY, UNA, USAM, UWAL

Range of years during which specimens were collected: 1898 - 2021

Barcode / Accession No. County Coll. Date Collector &
Collection No.		 Herbarium &
Herbarium Name Used		 Image
AUA000037807 Escambia 25 Oct 2011 Hansen, Curtis J.
5339		 AUA
Cyperus Retrofractus (L.) Torr.
UNA00002039 DeKalb 08 Aug 1980 Meigs, Russell A.
1139		 UNA
Cyperus retrofractus (L.) Torr.
JSU110246 Marshall 9 Aug 1992 Spaulding, Daniel D.
2631		 JSU
Cyperus retrofractus (Linnaeus) Torrey
TROY000033179 Escambia 08 Jul 2009 Hansen, Curtis J.
4103A		 TROY
Cyperus retrofractus (Linnaeus) Torrey
UNA00064677 Bibb 28 Jun 2005 Schotz, Alfred
1964		 UNA
Cyperus retrofractus (L.) Torr.
USAM000004633 Mobile 07 Aug 1967 LeLong, Michel G.
3495		 USAM
Cyperus retrofractus (Linnaeus) Torrey
TROY000025492 Butler 16 Aug 2007 Diamond, Alvin R.
17903		 TROY
Cyperus retrofractus (Linnaeus) Torrey
TROY000025494 Crenshaw 17 Aug 2008 Diamond, Alvin R.
19800		 TROY
Cyperus retrofractus (Linnaeus) Torrey
ALNHS00006252 Bibb 18 Jul 2018 Barger, T. Wayne
SP#4132		 ALNHS
Cyperus retrofractus (L.) Torr.
JSU110244 Marshall 19 Jul 1992 Spaulding, Daniel D.
2345		 JSU
Cyperus retrofractus (Linnaeus) Torrey
UWAL0056675 Lamar 29 Jun 2021 England, Kevin J.
12353		 UWAL
Cyperus retrofractus (L.) Torr.
UNA00002044 DeKalb 02 Sep 1898 Mohr, Charles
s.n.		 UNA
Cyperus retrofractus (L.) Torr.
UWAL0050122 Autauga 07 Sep 2017 Parker, Matthew R.
1198		 UWAL
Cyperus retrofractus (Linnaeus) Torrey
JSU110241 DeKalb 12 Sep 1986 Whetstone, R. David
15683		 JSU
Cyperus retrofractus (Linnaeus) Torrey
TROY000042297 Sumter 12 Jun 2008 Keener, Brian R.
4604		 TROY
Cyperus retrofractus (Linnaeus) Torrey
TROY000025491 Bullock 08 Aug 2002 Diamond, Alvin R.
13512		 TROY
Cyperus retrofractus (Linnaeus) Torrey
UWAL0050453 Autauga 20 Jul 2017 Parker, Matthew R.
1019		 UWAL
Cyperus retrofractuc (Linnaeus) Torrey
AUA000024846 Escambia 8 Jul 2009 Hansen, Curtis J.
4103A		 AUA
Cyperus Retrofractus (L.) Torr.
TROY000052105 Montgomery 02 Aug 2019 Diamond, Alvin R.
29036		 TROY
Cyperus retrofractus (Linnaeus) Torrey
TROY000025493 Butler 05 Oct 2008 Diamond, Alvin R.
20254		 TROY
Cyperus retrofractus (Linnaeus) Torrey
JSU110243 Etowah 17 Jul 1994 Hodge, Lesley M.
2883		 JSU
Cyperus retrofractus (Linnaeus) Torrey
JSU110242 Etowah 1 Jun 1994 Hodge, Lesley M.
2689		 JSU
Cyperus retrofractus (Linnaeus) Torrey
TROY000049333 Autauga 05 Oct 2018 Parker, Matthew R.
1839		 TROY
Cyperus retrofractus (Linnaeus) Torrey
ALNHS00006130 Bibb 18 Jul 2018 Barger, T. Wayne
SP#4132		 ALNHS
Cyperus retrofractus (L.) Torr.
UNA00059256 Dale 02 Sep 2002 Diamond, Alvin R.
13641		 UNA
Cyperus retrofractus (L.) Torr.
AUA000042165 Cullman 13 Jul 1934 Wolf, Wolfgang
 AUA
Cyperus Retrofractus (L.) Torr.
JSU110245 Marshall 12 Jul 1992 Spaulding, Daniel D.
2276		 JSU
Cyperus retrofractus (Linnaeus) Torrey
UWAL0044952 Escambia 25 Oct 2011 Hansen, Curtis J.
5339		 UWAL
Cyperus retrofractus (L.) Torr.
UWAL0003291 Sumter 12 Jun 2008 Keener, Brian R.
4604		 UWAL
Cyperus retroflactus (L.) Torr.
TROY000049315 Autauga 07 Sep 2017 Parker, Matthew R.
1198		 TROY
Cyperus retrofractus (Linnaeus) Torrey
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