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Senna ligustrina; photograph (c) Turner Brockman, some rights reserved (CC BY-SA) CC BY-SA(c) Turner Brockman, some rights reserved (CC BY-SA) · observed growing wild · 2026-01-05

Senna ligustrina (L.) H.S.Irwin & Barneby

Privet senna; Privet wild sensitive plant

Fabaceae · Florida, Panama +8

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Senna ligustrina, photograph author not stated, no rights reservedSenna ligustrina, photograph author not stated, no rights reservedSenna ligustrina, photograph author not stated, no rights reservedSenna ligustrina, photograph (c) Tom and T Herman, some rights reserved (CC BY)Senna ligustrina, photograph (c) Tom and T Herman, some rights reserved (CC BY)Senna ligustrina, photograph (c) Turner Brockman, some rights reserved (CC BY-SA) 70 photographs ›
Habitat figures
Cold floor (1 night in 100)
5.3°C
Record low -2.7 °C in 44 years, at a typical spot in the range NASA POWER
Warmest month, mean daily high
31°C
Jul and Aug at the habitat CHELSA
Rain a year (median across the range)
1,438mm
12 months of 25 mm or more in the median year CHELSA
Open-sky light
21–42DLI
Lowest to highest month (DLI) CHELSA
The year in your months, northern hemisphere
  1. Jan
  2. Feb
  3. Mar
  4. Apr
  5. May
  6. Jun
  7. Jul
  8. Aug
  9. Sep
  10. Oct
  11. Nov
  12. Dec
Wet summers: the rain comes May to October, read as a summer growing season. rain rule, CHELSA
Northern hemisphere unless you set your site. The chart is in the habitat's months.

Summary

Senna ligustrina, commonly referred to as privet wild sensitive plant or privet senna, is a species of flowering plant native to the Antilles and the US state of Florida.

Quoted from Wikipedia, "Senna ligustrina", CC BY-SA 4.0.

Cultivation

Seasons

The rain rule reads a summer growing season: 70% of the median year's rain (1,056 mm of 1,432 mm) falls in May to October, warmer than the year (wet-season mean 26.6 °C against a yearly mean of 23.7 °C). Months are the habitat's, northern hemisphere; shifted six months for a southern-hemisphere collection: November to April.

Rain

1,432 mm in the median year at the habitat, 1,056 mm of it May to October. Wettest month June at 217 mm, driest month December at 51 mm. Across the grid cells of the range the year's total runs 1,281 mm to 1,575 mm, the 10th to 90th percentile of each cell's own year. The median of the cells' own yearly totals, 1,438 mm, is the year's rain at the top of the page; the 1,432 mm here is the median year's, the twelve monthly medians added, which the rain rule reads. Habitat calendar, northern hemisphere; median year across the grid cells of the range, CHELSA.

Light

Open sky over the habitat: 21 to 42 mol/m²/day across the year (daily light integral, median year across the grid cells of the range, CHELSA; the lowest 10th-percentile month across the cells is 20, the highest 90th-percentile month 43).

Warmth and air
Temperature

Coldest: the 1st-percentile night over 44 years at a typical spot in the range is 5.3 °C, the absolute minimum -2.7 °C, 9 frost nights in 44 years (NASA POWER daily minima). Warmest: the 99th-percentile day is 33.9 °C. Monthly means: the coldest month's mean nightly low 15.1 °C in January (across the grid cells of the range 11.5 °C to 19.9 °C), the warmest month's mean daily high 30.7 °C in July and August (median year across the grid cells of the range, CHELSA). Cold floor: 5.3 °C, which is the 1st-percentile night over 44 years at a typical spot in the range (NASA POWER).

Humidity

Relative humidity at the habitat: 58 to 63% across the year (monthly means, median year across the grid cells of the range, CHELSA). A figure about the air, saying nothing about how the plant takes water.

How this section is made

Each card states this species' habitat figures with their sources, and what two fixed rules read from them; nothing here says what the plant does, wants or tolerates. The rules · the terms.

Seasons. Read from the median year of CHELSA monthly rainfall and mean temperature across the grid cells of the range: the rain rule takes the smallest set of months carrying 70% of the rain and calls it winter when its mean is more than half a degree below the year's, summer when more than that above, and neither in between; the temperature rule, used only under 120 mm, names the cooler six months when they are at least a degree cooler than the other six. Months are shifted for the other hemisphere only where the temperature curve moves 4 °C or more and the habitat lies 10° or more from the equator. A reading of the curves, not an observation of the plant.

Rain. CHELSA monthly precipitation, median year across the grid cells of the range. The rain that falls where the species is recorded; nothing about how the plant takes water.

Light. CHELSA shortwave radiation at each envelope cell, a daily-mean flux taken to a daily total and converted at 2.07 mol of PAR per MJ. The sky over the habitat, measured; what reaches a plant under a rock, a shrub or a shade cloth is not.

Temperature. NASA POWER daily minima and maxima over 44 years at a typical spot in the range, lapse-corrected -4 m to its elevation; CHELSA monthly means, median year across the grid cells of the range. The cold floor is the 1st-percentile night named in its sentence. Not a measured survival limit for any plant in a pot.

Humidity. CHELSA relative humidity, median year across the grid cells of the range.

Climate across the habitat

Habitat months, northern hemisphere

Habitat climate of Senna ligustrina through the yearWarmest months July and August, mean daily high 31 °C; coldest month January, mean nightly low 15.1 °C; 1,432 mm of rain in the median year (the twelve monthly medians added). Medians across the range, from CHELSA; the extremes at the edge from NASA POWER. Habitat months, northern hemisphere.-10°0°10°20°30°40°frost33.9° 99th-percentile day, NASA POWER-2.7° lowest night in 44 years, NASA POWER°C · day and nightcold quarter050100150200250300mm rainDLI 21–42RH 58–63%JanFebMarAprMayJunJulAugSepOctNovDec
day night rain medians and 10th–90th percentile across 157 habitat cells, CHELSA cold quarter: the three months around the coldest month's mean nightly low extremes over 44 years at a typical spot in the range, from NASA POWER, marked at the edge, in no month DLI, mol/m²/dayRH %each on its own scale
Figures by month
JanFebMarAprMayJunJulAugSepOctNovDec
Day °C23 / 19–2524 / 20–2625 / 22–2727 / 24–2929 / 26–3130 / 28–3231 / 29–3231 / 29–3230 / 29–3128 / 27–2926 / 24–2724 / 21–25
Night °C15 / 12–2016 / 13–2017 / 15–2119 / 17–2222 / 20–2424 / 23–2625 / 23–2625 / 24–2624 / 23–2622 / 20–2519 / 16–2317 / 13–21
Rain mm52 / 41–7165 / 48–8081 / 53–10667 / 55–82102 / 59–138217 / 158–265194 / 137–229216 / 160–249207 / 166–253120 / 73–14960 / 48–8851 / 39–72
DLI23 / 22–2628 / 26–3134 / 33–3740 / 39–4242 / 40–4339 / 37–4139 / 38–4337 / 35–4032 / 31–3529 / 27–3124 / 22–2621 / 20–23
RH %58 / 58–6059 / 58–6158 / 57–6158 / 56–6160 / 57–6363 / 62–6462 / 62–6463 / 62–6463 / 63–6461 / 60–6259 / 58–6159 / 58–60
How this section is made
Each figure is the median across the 157 grid cells on land that hold in-range records (253 records in those cells; 2 more cells hold records but no land by the elevation layer, so those records sit at sea and the cells are left out), with the 10th–90th percentile span across those cells after the slash where it differs. A dash is a month one or more of those cells has no figure for in the grid (a variable CHELSA does not carry there), so no median is taken rather than one over fewer cells. Extremes and elevation were read at a typical spot in the range, cell 1283:1977 (25.825, -81.125). Over 44 years there: absolute minimum -2.7 °C, 1st-percentile night 5.3 °C, 99th-percentile day 33.9 °C. Normals: CHELSA V2.1 1981–2010 climatology, 0.05° cells (each the mean of ~36 1 km pixels). Across the range: median and 10th–90th percentile of each month across the 157 distinct grid cells holding 253 of the 256 in-range records (2 further cells with records at sea, by the elevation layer, left out); extremes and elevation at the typical cell 1283:1977 (its coldest month's mean nightly low nearest the median across cells); its position is the cell centre. Extremes: NASA POWER (MERRA-2) daily 1981–2024, cell 26.00_-81.250, lapse-corrected -4 m at 6.5 °C/km. Elevation: ETOPO 2022, 3 m (cell mean).

Natural habitat

Native range as published by WCVP; the marker is where the records are densest and decides nothing: the climate was read across the cells of the in-range records placed well enough to read one, not at the marker.
Openly licensed records inside the range, framed on where they fall.
NativeFlorida, Panama, Bahamas, Cayman Is., Cuba, Dominican Republic, Haiti, Jamaica, Leeward Is. AB Ant, Windward Is. · introduced: Ghana, Bermuda, Puerto Rico · regions are the level-3 units of the World Geographical Scheme for Recording Plant Distributions, as Kew's World Checklist records ranges, some under historical names such as Yugoslavia or Czechoslovakia (how).
Map marker26.244, -80.468 · in the densest population, 208 records (55% of those in range)
Kew's description“shrub” · quoted from WCVP, RBG Kew (CC BY 4.0); not derived here
Evidence usedThe map marker rests on all 379 georeferenced records inside the native range; the climate across the range on the 253 of them in the land cells it reads, of 256 placed to within 10 km; the map shows only the 181 openly licensed ones, which alone would put the marker 24 km away. 9 records outside the WCVP native range not used. 123 in-range records are placed to worse than 10 km, or with no stated accuracy (admitted only as a person's observation to three decimals), and stay on the map but off the climate.
How this section is made
The map marker: the openly licensed record nearest the middle of the densest 1° population of the 379 in-range records; it decides nothing. Records outside the native range, living specimens and records marked introduced are not used; which records count.

Photographs

Senna ligustrina, photograph 1did not loadSenna ligustrina, photograph 2did not loadSenna ligustrina, photograph 3did not loadSenna ligustrina, photograph 4did not loadSenna ligustrina, photograph 5did not loadSenna ligustrina, photograph 6did not load

Photographs: author not stated, no rights reserved · CC0 (3); (c) Tom and T Herman, some rights reserved (CC BY) (2); (c) Turner Brockman, some rights reserved (CC BY-SA).

Similar habitat climate The 6 nearest by mean daily high, mean nightly low and rain, month by month. How.

Lantana depressa Lantana depressa Pineland Lantana Photo: CC BY, Ben MachadoMyrsine cubana Myrsine cubana Primulaceae Photo: CC0, DaderotSida ulmifolia Sida ulmifolia Broom weed Photo: CC BY, Aidan FernPsychotria nervosa Psychotria nervosa Bastard Cankerberry Photo: CC0, author not statedPassiflora pallida Passiflora pallida Corkystem passionflower Photo: CC BY, Nathaniel IsabellaEleocharis cellulosa Eleocharis cellulosa Gulf Coast spikerush Photo: CC BY, Jody Shugart

Other Senna 68 in the reference

Senna acclinis Senna acclinis Rainforest Cassia Photo: CC BY-SA, Greg TasneySenna aciphylla Senna aciphylla Sprawling Cassia Photo: CC BY, Guy TaseskiSenna alata Senna alata Emperor's candlesticks Photo: CC BY, renjus boxSenna alexandrina Senna alexandrina Alexandrian senna Photo: CC BY, Karim HaddadSenna aphylla Senna aphylla Fabaceae Photo: CC BY, Guillermo DebandiSenna armata Senna armata Desert senna Photo: CC BY, Jacob SaucierSenna arnottiana Senna arnottiana Fabaceae Photo: CC BY, Morten RossSenna artemisioides Senna artemisioides Silver senna Photo: CC BY, Michelle W. （鍾偉瑋）Senna atomaria Senna atomaria Flor de San Jose Photo: CC BY, Jose Luis Leon de la LuzSenna auriculata Senna auriculata Matara-tea Photo: CC BY, Rohit NaniwadekarSenna aymara Senna aymara Fabaceae Photo: CC BY, Thomaz Ricardo Favreto SinaniSenna bacillaris Senna bacillaris Whitebark senna Photo: CC BY, scaup all 69 ›

Names & registers

Also known as Cassia angustisiliqua; Cassia bahamensis; Cassia ligustrina; Cassia ligustrina var. eggersiana; Cassia ligustrina var. jaegeriana and 7 more. (GBIF Backbone)

GBIFPOWOIPNIWFOWikidataWikipediaiNaturalist

The record

Family
Fabaceae
Described by
(L.) H.S.Irwin & Barneby
Native to
Florida, Panama, Bahamas +7
Wild records
379 in range · 181 open

Every figure here is derived from public data by a stated rule and names its source; nothing about this species is written for its page by a person or by AI, apart from the marked, credited quotations. How →

Where this page came from built 2026-10-22
GBIF species record gbif.species answeredasked 2026-10-22
GBIF synonyms gbif.synonyms answeredasked 2026-10-22
GBIF common names gbif.vernacular answeredasked 2026-10-22names fetched 2026-10-22
WCVP native range wcvp.distribution answeredas of 2026-06-04
GBIF occurrence records gbif.occurrences answeredas of 2026-10-21GBIF occurrence download https://doi.org/10.15468/dl.hbdw64, of 2026-10-21; 14 records within 1 km of a botanic garden, herbarium or zoo left out (13 at a botanic garden or arboretum, 1 at a zoo; Wikidata's list)
Habitat climate climate answeredasked 2026-10-22
Daily extremes (NASA POWER) climate.extremes answeredasked 2026-10-22NASA POWER (MERRA-2) daily 1981–2024, cell 26.00_-81.250, lapse-corrected -4 m at 6.5 °C/km
Wikidata wikidata answeredasked 2026-10-22
Wikipedia wikipedia answeredasked 2026-10-22
iNaturalist photographs, wild inat.photos.wild answeredasked 2026-10-22from iNaturalist's open data of 2026-09-27: research-grade observations with an open-licence photograph, the 24 whose photographs iNaturalist received last (the open data holds no votes); filled 2026-10-22
iNaturalist photographs, cultivated inat.photos.cultivated not asked
GBIF media gbif.media answeredasked 2026-10-22
OpenAlex papers openalex not askednot yet asked for this reference; a later fill takes the papers from OpenAlex's snapshot

Every source is recorded as having answered, reported nothing, refused, failed, not been asked, or answered twice where one answer is taken (“not taken: two items answered”), and, for a source asked when this page was built, when: the figures are as the source held them that day; a source read from a file (Kew's World Checklist, a GBIF download) says "as of" the file's day instead; a row carried from an earlier build of the page names that build instead. Only “nothing to report” is ever shown as an absence. Records came from 27 datasets via GBIF.org; each carries its own licence.

Cultifolio

Opening your plants…