Utricularia gibba L.
Humped bladderwort; Conespur bladderpod; Cone-spur bladderwort; Swollen-spurred bladderwort





87 photographs › At a glance
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Summary
Utricularia gibba, commonly known as the humped bladderwort or floating bladderwort, is a small, mat-forming species of carnivorous aquatic bladderwort. It is found on all continents except Antarctica.
Quoted from Wikipedia, "Utricularia gibba", CC BY-SA 4.0.
Cultivation
Grouped as a carnivorous plant, listed under the genus Utricularia in the archetype table, and Kew describes it as “hydrosubshrub”.
Seasons
The rain rule reads no short rainy season: 70% of the median year's rain (855 mm of 1,184 mm) takes 8 months, March, May to October and December. Mean temperature moves 17.2 °C between the warmest and coldest month. Months are the habitat's, northern hemisphere; shifted six months for a southern-hemisphere collection: November to April, June and September.
Rain
1,184 mm in the median year at the habitat, 855 mm of it March, May to October and December. Wettest month June at 122 mm, driest month February at 77 mm. Across the grid cells of the range the year's total runs 831 mm to 1,928 mm, the 10th to 90th percentile of each cell's own year. The median of the cells' own yearly totals, 1,286 mm, is the year's rain at the top of the page; the 1,184 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: 16 to 39 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 8, the highest 90th-percentile month 43).
Warmth and air
Coldest: the 1st-percentile night over 44 years at a typical spot in the range is -2.5 °C, the absolute minimum -10.9 °C, 556 frost nights in 44 years, 12.6 a year (NASA POWER daily minima). Warmest: the 99th-percentile day is 34.4 °C. Monthly means: the coldest month's mean nightly low 5.1 °C in January (across the grid cells of the range -10.5 °C to 19.5 °C), the warmest month's mean daily high 30.0 °C in July (median year across the grid cells of the range, CHELSA). Cold floor: -2.5 °C, which is the 1st-percentile night over 44 years at a typical spot in the range (NASA POWER).
Relative humidity at the habitat: 57 to 61% 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 +3 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.
Group. Listed under the genus Utricularia in the archetype table, and Kew describes it as “hydrosubshrub”. A group is taken only where Kew's description of the species agrees with the table's listing. The table gives no figure and no prose; the cold floor is the habitat's alone.
Climate across the habitat
Habitat months, northern hemisphere
Mean daily high from 14 °C in Jan to 30 °C in Jul and Aug; mean nightly low from 5 °C in Jan to 22 °C in Jul and Aug. The cold quarter, Dec to Feb, is the three months around the coldest month's mean nightly low. 1,184 mm of rain in the median year (the twelve monthly medians added), the wettest month Jun. The bands show the 10th to 90th percentile across 673 habitat cells. Over 44 years at a typical spot in the range (NASA POWER) the absolute minimum was -10.9 °C and the 99th-percentile day 34.4 °C; neither is dated to a month. Beneath: daily light integral and relative humidity through the year, each on its own scale.
Figures by month
| Figure | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Day °C | 14 / -2–26 | 16 / 0–27 | 20 / 5–28 | 23 / 12–29 | 26 / 18–31 | 29 / 22–32 | 30 / 24–33 | 30 / 24–33 | 28 / 20–31 | 23 / 14–29 | 19 / 7–27 | 15 / 1–26 |
| Night °C | 5 / -11–20 | 6 / -10–20 | 9 / -5–21 | 12 / 2–23 | 17 / 8–24 | 21 / 13–25 | 22 / 16–25 | 22 / 15–25 | 19 / 12–24 | 14 / 6–23 | 10 / 1–21 | 6 / -7–20 |
| Rain mm | 81 / 24–137 | 77 / 27–142 | 95 / 35–151 | 83 / 47–136 | 104 / 66–165 | 122 / 86–233 | 121 / 59–212 | 111 / 54–229 | 111 / 77–241 | 102 / 71–191 | 88 / 46–149 | 89 / 30–150 |
| DLI | 18 / 11–29 | 22 / 17–32 | 29 / 25–37 | 35 / 31–41 | 38 / 35–42 | 39 / 34–42 | 39 / 35–43 | 35 / 33–41 | 30 / 26–35 | 25 / 17–32 | 19 / 10–29 | 16 / 8–28 |
| RH % | 59 / 56–66 | 58 / 56–64 | 57 / 55–63 | 57 / 54–63 | 58 / 55–63 | 60 / 57–65 | 60 / 57–66 | 61 / 56–66 | 61 / 57–66 | 60 / 57–65 | 59 / 57–65 | 59 / 57–67 |
Records on both sides of the equator: the 186 cells at least 10° south of it have seasons six months apart and are left out, not combined into a year no place has. These figures are across the 673 cells that remain: the 629 at least 10° north and the 44 within 10° of the equator, which stay in either way.
How this section is made
Natural habitat
How this section is made
Photographs
Photographs: (c) naturalist charlie, some rights reserved (CC BY) (2); (c) Samuel Buckner, some rights reserved (CC BY) (3); (c) Craig Hensley, some rights reserved (CC BY).
Related
Similar habitat climate The 6 nearest by mean daily high, mean nightly low and rain, month by month. How.
Samolus parviflorus Seaside brookweed Photo: CC0, author not stated
Facelis retusa Annual trampweed Photo: CC BY, Angus Campbell
Ambrosia artemisiifolia Ragweed Photo: CC BY, Bobo-X
Arundinaria tecta Limber cane Photo: CC BY, David Wilkins
Vitis rotundifolia Muscadine grape Photo: CC BY, Alan RockefellerOther Utricularia 43 in the reference
Utricularia alpina Lentibulariaceae Photo: CC BY, Nolan Exe
Utricularia aurea Asian golden bladderwort Photo: CC BY, Scott W. Gavins
Utricularia australis Bladderwort Photo: CC BY, Michel Langeveld
Utricularia bifida Bifid bladderwort Photo: CC BY, jimmy
Utricularia bisquamata Cape Bladderwort Photo: CC BY, Cricket Raspet
Utricularia blanchetii Lentibulariaceae Photo: CC BY-SA, vitordematos12
Utricularia caerulea Blue Bladderwort Photo: CC0, author not stated
Utricularia cornuta Horned bladderwort Photo: CC0, author not stated
Utricularia dichotoma Fairies' aprons Photo: CC BY, Lorraine Cook
Utricularia foliosa Leafy bladderwort Photo: CC BY, Paulo Nogueira
Utricularia fulva Lentibulariaceae Photo: CC BY, Donna Belder all 44 ›Names & registers
Also known as Megopiza fornicata; Megopiza integra; Megopiza longirostris; Megozipa fornicata; Megozipa integra and 64 more. (GBIF Backbone)
Kew accepts as species of their own Utricularia chiakiana: older names in GBIF's record of this species that Kew's World Checklist accepts as other species. (WCVP, RBG Kew, file of 2026-06-04)
Under another author Utricularia minor Pursh is an older name of this species, not Utricularia minor, a species of the reference. (GBIF Backbone)
The record
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 answeredasked 2026-10-22gbif.synonyms answeredasked 2026-10-22gbif.vernacular answeredasked 2026-10-22names fetched 2026-10-22wcvp.distribution answeredas of 2026-06-04gbif.occurrences answeredas of 2026-10-21GBIF occurrence download https://doi.org/10.15468/dl.hbdw64, of 2026-10-21; 30 records within 1 km of a botanic garden, herbarium or zoo left out (27 at a botanic garden or arboretum, 1 at a herbarium, 2 at a zoo; Wikidata's list)climate answeredasked 2026-10-22climate.extremes answeredasked 2026-10-22NASA POWER (MERRA-2) daily 1981–2024, cell 34.00_-78.125, lapse-corrected +3 m at 6.5 °C/kmwikidata answeredasked 2026-10-22wikipedia answeredasked 2026-10-22inat.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 2026-10-22inat.photos.cultivated not askedgbif.media answeredasked 2026-10-22openalex not askednot yet asked for this reference; a later fill takes the papers from OpenAlex's snapshotEvery 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 232 datasets via GBIF.org; each carries its own licence.






