Corchorus siliquosusL.

slippery burr

WFO wfo-0000620178 Accepted WFO 2026-06 8 photographs CC BY / CC BY-SA

Plate 1 figs. a–h · 8 separate observations

Corchorus siliquosus, photographed by Eric Knight
fig. a Eric Knight, CC BY 4.0 / 2021-12-03 / obs. 171456274

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
01020577
Filed as
Corchorus siliquosus L.
Det. by
M. É. S. Moricand 1836-01-01
Collected
H. Wydler 1827
Origin
PR
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 29 botanical countries

Regions where Corchorus siliquosus is native: Florida, Mexico Central, Mexico Gulf, Mexico Northeast, Mexico Northwest, Mexico Southeast, Mexico Southwest, Bahamas, Belize, Cayman Is., Colombia, Costa Rica, Cuba, Dominican Republic, Guatemala, Guyana, Haiti, Honduras, Jamaica, Leeward Is., Nicaragua, Panamá, Puerto Rico, Southwest Caribbean, Trinidad-Tobago, Turks-Caicos Is., Venezuela, Venezuelan Antilles, Windward Is. FloridaMexico CentralMexico GulfMexico NortheastMexico NorthwestMexico SoutheastMexico SouthwestBelizeColombiaCosta RicaCubaDominican RepublicGuatemalaGuyanaHaitiHondurasJamaicaNicaraguaPanamáPuerto RicoSouthwest CaribbeanTrinidad-TobagoVenezuela BahamasCayman Is.Leeward Is.Turks-Caicos Is.Venezuelan AntillesWindward Is.
Native distribution of Corchorus siliquosus, 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
Bahamas BAH SOUTHERN AMERICA
Belize BLZ
Cayman Is. CAY
Colombia CLM
Costa Rica COS
Cuba CUB
Dominican Republic DOM
Guatemala GUA
Guyana GUY
Haiti HAI
Honduras HON
Jamaica JAM
Leeward Is. LEE
Nicaragua NIC
Panamá PAN
Puerto Rico PUE
Southwest Caribbean SWC
Trinidad-Tobago TRT
Turks-Caicos Is. TCI
Venezuela VEN
Venezuelan Antilles VNA
Windward Is. WIN
Florida FLA NORTHERN AMERICA
Mexico Central MXC
Mexico Gulf MXG
Mexico Northeast MXE
Mexico Northwest MXN
Mexico Southeast MXT
Mexico Southwest MXS

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.

Where it actually grows measured, from 205 observations

Condition 5th percentile Median 95th percentile
Coldest month, mean daily low 14.0 °C 16.7 °C 24.1 °C
Warmest month, mean daily high 28.0 °C 30.6 °C 34.1 °C
Annual rainfall 986 mm 1,484 mm 2,017 mm
Rainfall in the driest quarter 20 mm 140 mm 274 mm

It is not found anywhere that gets close to freezing. This is not care advice and it is not a forecast. It is a measurement: we sampled the climate at every one of the 205 research-grade observations of Corchorus siliquosus 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.

Also published as 4 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.

  • Corchorus coreta L.
  • Corchorus linearis Mill.
  • Corchorus secundiflorus Moc. & Sessé ex DC.
  • Corchorus trinervis Moc. & Sessé

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.