Axonopus fissifolius(Raddi) Kuhlm.

common carpetgrass

WFO wfo-0000852827 Accepted WFO 2026-06 8 photographs CC0 / CC BY

Plate 1 figs. a–h · 8 separate observations

Axonopus fissifolius, photographed by Kevin Faccenda
fig. a Kevin Faccenda, CC BY 4.0 / 2022-06-02 / obs. 204044626

Every figure is a research-grade observation under CC0, CC BY or CC BY-SA, rehosted with the photographer’s name, the licence and the observation it came from. Photographs under a NonCommercial licence are excluded from this site and are never stored, which costs us a great many pictures and is not negotiable.

The specimen a real sheet, in a real collection

Herbarium
The New York Botanical Garden
Accession
628855
Filed as
Axonopus fissifolius (Raddi) Kuhlm.
Det. by
L. B. Smith 1973-09-01
Collected
R. M. Klein 1972-02-24
Origin
BR
The sheet
View the digitised specimen (CC BY 4.0)

A real pressed plant, in a real collection, under the accession number above. Not an illustration of one. The holding institution does not serve this sheet’s image to third parties, so there is no photograph here. The record is real and the link goes to it. Where we hold no openly licensed sheet for a species this section is simply absent, and where a sheet never recorded who determined it, that field stays empty rather than being filled in. Roughly half of all herbarium sheets never recorded a determiner, which is ordinary.

Native range 44 botanical countries

Regions where Axonopus fissifolius is native: Alabama, Arkansas, Florida, Georgia, Louisiana, Mexico Central, Mexico Gulf, Mexico Northeast, Mexico Southeast, Mexico Southwest, Mississippi, North Carolina, Oklahoma, South Carolina, Texas, Virginia, Vanuatu, Argentina Northeast, Argentina Northwest, Belize, Bolivia, Brazil North, Brazil Northeast, Brazil South, Brazil Southeast, Brazil West-Central, Colombia, Costa Rica, Cuba, Dominican Republic, Ecuador, El Salvador, Guatemala, Guyana, Haiti, Honduras, Nicaragua, Panamá, Paraguay, Puerto Rico, Trinidad-Tobago, Uruguay, Venezuela, Windward Is. AlabamaArkansasFloridaGeorgiaLouisianaMexico CentralMexico GulfMexico NortheastMexico SoutheastMexico SouthwestMississippiNorth CarolinaOklahomaSouth CarolinaTexasVirginiaArgentina NortheastArgentina NorthwestBelizeBoliviaBrazil NorthBrazil NortheastBrazil SouthBrazil SoutheastBrazil West-CentralColombiaCosta RicaCubaDominican RepublicEcuadorEl SalvadorGuatemalaGuyanaHaitiHondurasNicaraguaPanamáParaguayPuerto RicoTrinidad-TobagoUruguayVenezuela VanuatuWindward Is.
Native distribution of Axonopus fissifolius, after Kew’s World Checklist of Vascular Plants. Introduced, extinct and doubtful records are excluded, so this is where the plant is from, not everywhere it now grows. Regions too small to draw at this scale are marked with a dot.
RegionTDWG codeContinent
Argentina Northeast AGE SOUTHERN AMERICA
Argentina Northwest AGW
Belize BLZ
Bolivia BOL
Brazil North BZN
Brazil Northeast BZE
Brazil South BZS
Brazil Southeast BZL
Brazil West-Central BZC
Colombia CLM
Costa Rica COS
Cuba CUB
Dominican Republic DOM
Ecuador ECU
El Salvador ELS
Guatemala GUA
Guyana GUY
Haiti HAI
Honduras HON
Nicaragua NIC
Panamá PAN
Paraguay PAR
Puerto Rico PUE
Trinidad-Tobago TRT
Uruguay URU
Venezuela VEN
Windward Is. WIN
Alabama ALA NORTHERN AMERICA
Arkansas ARK
Florida FLA
Georgia GEO
Louisiana LOU
Mexico Central MXC
Mexico Gulf MXG
Mexico Northeast MXE
Mexico Southeast MXT
Mexico Southwest MXS
Mississippi MSI
North Carolina NCA
Oklahoma OKL
South Carolina SCA
Texas TEX
Virginia VRG
Vanuatu VAN PACIFIC

Region boundaries approximated from Natural Earth (public domain) and mapped to TDWG World Geographical Scheme for Recording Plant Distributions (WGSRPD) level-3 botanical countries (Brummitt 2001). Indicative, not the official WGSRPD geometry.

Flowering 31 in flower of 53 examined

Proportion of examined Axonopus fissifolius in flower, by month
Month In flower Examined Share 95% interval
Jan 4 5 80% 38% to 96%
Feb 4 7 57% 25% to 84%
Mar 5 10 50% 24% to 76%
Apr 2 2 too few examined
May 0 1 too few examined
Jun 3 7 43% 16% to 75%
Jul 2 2 too few examined
Aug 3 4 too few examined
Sep 2 6 33% 10% to 70%
Oct 2 3 too few examined
Nov 2 4 too few examined
Dec 2 2 too few examined

Peak flowering in Jan. Each bar is the share of Axonopus fissifolius observations in which someone actually recorded the reproductive state and found the plant in flower, not the raw number of flowering records. That distinction matters: people observe plants far more in spring than in winter, so a bare count of flowering records partly measures when people go outside. Dividing by the number examined removes that. 31 of 53 examined observations were in flower, every one of them research grade. The whisker on each bar is a 95% Wilson interval. 7 months have fewer than 5 examined observations, so no proportion is drawn for them. This is still a global aggregate and not a forecast for your garden: the same species flowers on different dates in different hemispheres. Where a species has fewer than 30 flowering records we do not draw this chart at all. Computed from 10.15468/dl.cgje2x.

Where it actually grows measured, from 542 observations

Condition 5th percentile Median 95th percentile
Coldest month, mean daily low 4.1 °C 9.9 °C 19.7 °C
Warmest month, mean daily high 20.9 °C 25.0 °C 31.8 °C
Annual rainfall 846 mm 1,348 mm 4,438 mm
Rainfall in the driest quarter 106 mm 240 mm 857 mm

It is barely found anywhere that freezes. This is not care advice and it is not a forecast. It is a measurement: we sampled the climate at every one of the 542 research-grade observations of Axonopus fissifolius that carry a coordinate, and this is the range those places actually span. The 5th and 95th percentiles are used rather than the minimum and maximum, because a single cultivated specimen in a heated conservatory should not widen a tropical plant's range to the Arctic.

This is not a hardiness zone. A USDA zone is the average annual extreme minimum temperature. The figure above is the mean daily minimum of the coldest month, which is a different quantity and is typically far warmer. Reading one as the other would place a plant several zones too warm, so we do not publish a hardiness zone, because we do not have one. Climate from CHELSA V2.1 (Karger et al. 2017); occurrences from 10.15468/dl.cgje2x.

Also published as 13 synonyms

A synonym is not an error. It is a record of botanists disagreeing, in print, about where this plant belongs. Each of these was somebody’s considered answer.

  • Axonopus affinis Chase
  • Axonopus ater Chase
  • Axonopus compressus var. affinis (Chase) Hend.
  • Axonopus fissifolius var. coronatus G.A.Black
  • Axonopus fissifolius var. fissifolius
  • Axonopus hirsutus G.A.Black
  • Axonopus stragulus Chase
  • Paspalum compressum var. arenarium Bertero
  • Paspalum filifolium Kunth
  • Paspalum fissifolium Raddi
  • Paspalum platycaulon var. gracilius Döll
  • Paspalum platycaulon var. pygmaeum Döll
  • Paspalum xizangense B.S.Sun & H.Sun

Sourcesevery claim on this page

  1. World Flora Online Plant List. accepted name, authority, classification. CC0. Retrieved 2026-07-12.
  2. iNaturalist. photographs and flowering annotations, CC0 / CC BY / CC BY-SA only. per photograph. Retrieved 2026-06-27.
  3. Wikidata. common name (P1843), joined on the World Flora Online identifier (P7715). CC0. Retrieved 2026-07-13.
  4. Kew, World Checklist of Vascular Plants (WCVP v16). native distribution by TDWG level-3 botanical country, and life form. CC BY 3.0. Retrieved 2026-06-04.

We publish what we can source and we say so when we cannot. This page has no care advice and no toxicity claim, because we do not yet have those from a source we can cite.