Piscidia piscipula(L.) Sarg.

Florida fishpoison tree

WFO wfo-0000168417 Accepted WFO 2026-06 8 photographs CC BY / CC BY-SA

Plate 1 figs. a–h · 8 separate observations

Piscidia piscipula, photographed by Juan Cruzado Cortés
fig. a Juan Cruzado Cortés, CC BY-SA 4.0 / 2022-03-27 / obs. 186295705

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
88337
Filed as
Piscidia piscipula (L.) Sarg.
Det. by
E. Gibney 1997-01-01
Collected
G. J. Ray 1997-08-15
Origin
US
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. We link to the digitised sheet rather than rehosting it, because the holding institutions do not serve their images to third parties reliably and we are not going to show you a picture we cannot actually deliver. 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 sheets never recorded a determiner, which is ordinary.

Native range 17 botanical countries

Regions where Piscidia piscipula is native: Florida, Mexico Central, Mexico Gulf, Mexico Northeast, Mexico Southeast, Mexico Southwest, Bahamas, Belize, Cayman Is., Cuba, Dominican Republic, Guatemala, Honduras, Jamaica, Panamá, Southwest Caribbean, Venezuelan Antilles FloridaMexico CentralMexico GulfMexico NortheastMexico SoutheastMexico SouthwestBelizeCubaDominican RepublicGuatemalaHondurasJamaicaPanamáSouthwest Caribbean BahamasCayman Is.Venezuelan Antilles
Native distribution of Piscidia piscipula, 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
Cuba CUB
Dominican Republic DOM
Guatemala GUA
Honduras HON
Jamaica JAM
Panamá PAN
Southwest Caribbean SWC
Venezuelan Antilles VNA
Florida FLA NORTHERN AMERICA
Mexico Central MXC
Mexico Gulf MXG
Mexico Northeast MXE
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.

Flowering 44 in flower of 118 examined

Proportion of examined Piscidia piscipula in flower, by month
Month In flower Examined Share 95% interval
Jan 0 1 too few examined
Feb 1 2 too few examined
Mar 12 14 86% 60% to 96%
Apr 7 25 28% 14% to 48%
May 22 46 48% 34% to 62%
Jun 1 9 11% 2% to 44%
Jul 1 4 too few examined
Aug 0 2 too few examined
Sep 0 3 too few examined
Oct 0 1 too few examined
Nov 0 8 0% 0% to 32%
Dec 0 3 too few examined

Peak flowering in Mar. Each bar is the share of Piscidia piscipula 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. 44 of 118 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 1,229 observations

Condition 5th percentile Median 95th percentile
Coldest month, mean daily low 15.1 °C 19.1 °C 22.5 °C
Warmest month, mean daily high 28.9 °C 29.4 °C 35.6 °C
Annual rainfall 1,013 mm 1,262 mm 1,513 mm
Rainfall in the driest quarter 73 mm 143 mm 170 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 1,229 research-grade observations of Piscidia piscipula 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 11 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.

  • Erythrina piscidioides Sweet
  • Erythrina piscipula L.
  • Ichthyomethia communis S.F.Blake
  • Ichthyomethia piscipula (L.) Hitchc.
  • Ichthyomethia piscipula var. typica Stehlé & Quentin
  • Piscidia communis (S.F.Blake) I.M.Johnst.
  • Piscidia erythrina L.
  • Piscidia inebrians Medik.
  • Piscidia toxicaria Salisb.
  • Piscipula erythrina Loefl.
  • Robinia alata Mill.

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.