Species
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Pinguicula ionantha R.K.Godfrey

Godfrey's butterwort, Violet butterwort, violet butterwort

Climate known 86 photographs Carnivorous plant
Add one to my plants Sow seed

Every figure on this page is derived from public data by a stated rule and says its source; nothing here is written by a person or a model, except the Wikipedia passage, which is quoted and marked as such. How it is made.

Summary

Pinguicula ionantha is a rare species of flowering plant in the butterwort family known by the common names Godfrey's butterwort, violet butterwort, and panhandle butterwort. It is endemic to the US state of Florida, where it only occurs in the central Florida Panhandle. It is threatened by the loss of its habitat, and it is a federally listed threatened species of the United States.

Text from Wikipedia, “Pinguicula ionantha”, CC BY-SA 4.0, quoted as written. Kept separate from everything derived here.

About the genus · Pinguicula

Pinguicula, commonly known as butterworts, is a genus of carnivorous flowering plants in the family Lentibulariaceae. They use sticky, glandular leaves to lure, trap, and digest insects in order to supplement the poor mineral nutrition they obtain from the environment. 126 species are currently accepted. More on Wikipedia ›

The opening of Wikipedia, “Pinguicula”, CC BY-SA 4.0, quoted as written.

Family
Lentibulariaceae
Described by
R.K.Godfrey
Native to
Florida
Wild records
188 in range· 49 open

At a glance

Warmest month
31°C
Jul, mean day; nights 25 °C (CHELSA)
Rain
1759mm/yr
12 wet months · peak Aug 229 mm (CHELSA)
Light
19–43DLI
mol/m²/day, winter to summer, open sky (CHELSA shortwave)
In short condensed by rule from the cultivation cards · not written by a person
Grouped as a carnivorous plant by the genus Pinguicula, which is reliably one kind of plant (archetype table). Rain rule: a summer growing season, January to March and June to September in the northern hemisphere (January to March and June to September at the habitat, northern). Habitat rain 1759 mm a year, wettest August at 229 mm, driest May at 82 mm (habitat calendar, northern hemisphere). Open sky over the habitat: 19 to 43 mol/m²/day. Cold floor -2.6 °C (1st-percentile habitat night, NASA POWER).
Each sentence is one card's own one-line form, written by the same rule as the card (Its year, Rain, Light, Temperature); the note cannot say what a card does not. Months are given for the northern hemisphere (set your site in Settings to change this), and the habitat's own alongside. The cards · the figures.

Cultivation

Grouped as a carnivorous plant by the genus Pinguicula, which is reliably one kind of plant (archetype table). The table holds no figure for this group, which spans too much for one minimum; the cold floor is the habitat's alone, and no prose comes from the table.

Its year Rain rule: a summer growing season, January to March and June to September in the northern hemisphere (January to March and June to September at the habitat, northern).

This species’ habitat figures, and what two fixed rules read from them.

The rain rule reads a summer growing season: 70% of the year's rain (1254 mm of 1759 mm) falls in January to March and June to September, warmer than the year (wet-season mean 21.0 °C against a yearly mean of 20.0 °C). Months are the habitat's, northern hemisphere; shifted six months for a southern-hemisphere collection: December to March and July to September.

Read from the median year of CHELSA monthly rainfall and mean temperature across the envelope cells: 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 gives a season to reverse. A reading of the curves, not an observation of the plant.

Rain Habitat rain 1759 mm a year, wettest August at 229 mm, driest May at 82 mm (habitat calendar, northern hemisphere).

This species’ habitat figures, with their source.

1759 mm a year at the habitat, 1254 mm of it January to March and June to September. Wettest month August at 229 mm, driest May at 82 mm. Across the envelope cells the year's total runs 1576 mm to 1866 mm (10th to 90th percentile of each cell's own year) (median year across the envelope cells, CHELSA; habitat calendar, northern hemisphere).

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

Light Open sky over the habitat: 19 to 43 mol/m²/day.

This species’ habitat figures, with their source.

Open sky over the habitat: 19 to 43 mol/m²/day across the year (daily light integral, median year across the envelope cells, CHELSA).

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.

Warmth and air Cold floor -2.6 °C (1st-percentile habitat night, NASA POWER).

This species’ habitat figures, with their source.

Temperature

Coldest: the 1st-percentile night over 44 years at the typical cell is -2.6 °C, the absolute minimum -10.2 °C, about 10 frost nights a year (NASA POWER daily minima). Warmest: the 99th-percentile day is 36.7 °C. Monthly means: coldest night 8.3 °C in January (across the envelope cells 7.7 °C to 9.8 °C), warmest day 30.6 °C in July (median year across the envelope cells, CHELSA). Cold floor: -2.6 °C, which is the 1st-percentile night over 44 years at the typical cell (NASA POWER).

NASA POWER daily minima and maxima 1981–2024 at the typical cell, lapse-corrected to its elevation; CHELSA monthly means, median year across the envelope cells, CHELSA. The cold floor is the figure named in its sentence. Not a measured survival limit for any plant in a pot.

Humidity

Relative humidity at the habitat: 58 to 64% across the year (monthly means, median year across the envelope cells, CHELSA). A figure about the air, saying nothing about how the plant takes water.

CHELSA relative humidity, median year across the envelope cells.

The figures the cards read from are in Climate below, and where they came from in Natural habitat.

Climate across the habitat

Habitat climate through the yearMean day from 16 °C in Jan to 31 °C in Jul; mean night from 8 °C in Jan to 25 °C in Jul. The cold quarter, Dec to Feb, is the three months around the coldest night. 1759 mm of rain a year, most in Aug. The bands show the 10th to 90th percentile across 8 habitat cells. Over 44 years at the typical cell the absolute minimum was -10.2 °C and the 99th-percentile day 36.7 °C; neither is dated to a month. Beneath: daily light integral and relative humidity through the year, each on its own scale.-20°-10°10°20°30°40°frost36.7° 99th-percentile day (undated)-10.2° lowest night in 44 yrs (undated)°C · day and nightcold quarter050100150200250mm rainDLI 19–43RH 58–64 %JanFebMarAprMayJunJulAugSepOctNovDec
day night rain 10th–90th percentile across 8 habitat cells cold quarter: the three months around the coldest night extremes over 44 years at the typical cell, marked at the edge: undated DLI, mol/m²/dayRH %each on its own scale
Figures by month
JanFebMarAprMayJunJulAugSepOctNovDec
Day °C16 / 16–1718 / 18–1921 / 20–2224 / 23–2528 / 27–2930 / 29–3131 / 30–3230 / 30–3129 / 29–3026 / 25–2621 / 21–2218 / 18–18
Night °C8 / 8–1010 / 9–1112 / 12–1316 / 15–1720 / 19–2123 / 23–2425 / 24–2525 / 24–2523 / 22–2418 / 17–2013 / 13–1510 / 9–11
Rain mm131 / 116–145141 / 118–151163 / 142–174108 / 85–11582 / 62–88185 / 163–205225 / 207–245229 / 216–240180 / 165–186103 / 96–10799 / 88–112113 / 95–123
DLI21 / 20–2126 / 25–2633 / 32–3340 / 40–4143 / 42–4340 / 40–4038 / 38–3835 / 35–3532 / 32–3228 / 28–2823 / 22–2319 / 19–19
RH %59 / 58–5959 / 58–5959 / 58–5959 / 57–5961 / 59–6163 / 62–64646462 / 61–6258 / 58–5958 / 57–5959 / 59–60

Each figure is the median across the 8 grid cells holding the 8 in-range records, with the 10th–90th percentile span across those cells after the slash where it differs. Extremes and elevation were read at the typical cell 1200:1895 (29.975, -85.225). Over 44 years there: absolute minimum -10.2 °C, 1st-percentile night -2.6 °C, 99th-percentile day 36.7 °C. Normals: CHELSA V2.1 1981–2010 climatology, 0.05° cells (each the mean of ~36 1 km pixels). Envelope: median and 10th–90th percentile of each month across the 8 distinct grid cells holding the 8 in-range records; extremes and elevation at the typical cell 1200:1895 (its coldest month's mean night nearest the median across cells); its position is the cell centre. Extremes: NASA POWER (MERRA-2) daily 1981–2024, cell 30.00_-85.000, lapse-corrected -7 m at 6.5 °C/km. Elevation: ETOPO 2022, 6 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 every in-range record's cell, not at the marker.
Openly licensed records inside the range, framed on where they fall.
NativeFlorida
Kew's description“perennial or helophyte” · “subtropical”· quoted from WCVP, RBG Kew (CC BY 4.0); not derived here
Map marker30.02, -84.952 · in the densest population, 188 records (100% of those in range)
Evidence usedThe map marker and the climate envelope rest on all 188 georeferenced records inside the native range; the map shows only the 49 openly licensed ones, which alone would put the marker 6 km away. 1 record outside the range (gardens, roadsides, misidentifications) ignored. 180 in-range records are placed to worse than 10 km and stay on the map but off the climate.
The map markerthe map marker: the openly licensed record nearest the middle of the densest 1° population of the 188 in-range records; it decides nothing.

Photographs

Pinguicula ionanthaPinguicula ionanthaPinguicula ionanthaPinguicula ionanthaPinguicula ionanthaPinguicula ionanthaPinguicula ionanthaPinguicula ionantha

Photographs: (c) Kristof Zyskowski, some rights reserved (CC BY); (c) Turner Brockman, some rights reserved (CC BY-SA) (3); (c) Scott Allen Davis, some rights reserved (CC BY) (4).

Photographs: iNaturalist did not answer when this page was built; what is shown came from the sources that did.

Papers naming this species

Works whose title or abstract names Pinguicula ionantha, most cited first, from OpenAlex (CC0). A mention, not a cultivation source: nothing on this page is drawn from them.

Assessing genetic diversity for the USA endemic carnivorous plant Pinguicula ionantha R.K. Godfrey (Lentibulariaceae)
David N. Zaya, Brenda Molano‐Flores, Mary Ann Feist, Jason A. Koontz (2016) · Conservation Genetics
Demographic responses of Pinguicula ionantha to prescribed fire: a regression-design LTRE approach
Herbert C. Kesler, Jennifer L. Trusty, Sharon M. Hermann, Craig Guyer (2008) · Oecologia
Pollination requirements and self-compatibility of Godfrey’s butterwort, Pinguicula ionantha(Lentibulariaceae)
Jenna Annis, Samantha B. Primer, Brenda Molano‐Flores, Janice Coons (2014)
Seed Ecology of Federally Threatened Pinguicula ionantha (Godfrey's Butterwort)
Jenna Annis (2013) · The Keep (Eastern Illinois University)
Occurrence Download
GBIF.org User (2026) · Global Biodiversity Information Facility
Occurrence Download
GBIF.org User (2026) · Global Biodiversity Information Facility
Occurrence Download
GBIF.org User (2026) · Global Biodiversity Information Facility
Occurrence Download
GBIF.org User (2026) · Global Biodiversity Information Facility
Pinguicula ionantha R.K.Godfrey
University of Gothenburg (2026)
Occurrence Download
GBIF.org User (2026) · Global Biodiversity Information Facility
Occurrence Download
GBIF.org User (2025) · Global Biodiversity Information Facility

Similar habitat climate the 6 species whose habitat climate is nearest this one's: mean day and night, month by month, and rain on a log scale, in calendar order, so a habitat with the same seasons six months out is far, not near. Nothing else counts: not range, not family.

Other Pinguicula 117 in the reference

History & registers

Where this page came from built 2026-09-20 · dossier v2 · node
gbif.species answeredcarried from build of 2026-09-19 (offline re-derivation; the backbone was not asked)
gbif.synonyms answeredcarried from build of 2026-09-19 (offline re-derivation; the backbone was not asked)
gbif.vernacular answeredcarried from build of 2026-09-19 (offline re-derivation; the backbone was not asked)
wcvp.distribution answered
gbif.occurrences answeredGBIF occurrence download https://doi.org/10.15468/dl.3h4zam
climate answered
wikidata answeredcarried from build of 2026-09-19 (rederive); that build: carried from build of 2026-09-19 (rederive)
wikipedia answeredcarried from build of 2026-09-19; this build: skipped
inat.taxon not asked
inat.photos.wild answeredcarried from build of 2026-09-19; this build: skipped
inat.photos.cultivated nothing to reportcarried from build of 2026-09-19 (rederive); that build: carried from build of 2026-09-19 (rederive)
commons nothing to reportcarried from build of 2026-09-19 (rederive); that build: carried from build of 2026-09-19 (rederive)
gbif.media answered
openalex answeredcarried from build of 2026-09-19; this build: skipped

Every upstream is recorded as having answered, reported nothing, or refused. Only “nothing to report” is ever shown as an absence. Records came from 7 datasets via GBIF.org; each carries its own licence.