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Drosera sargentii; photograph Matthias Jauernig, CC BY-SA 3.0, via Wikimedia Commons CC BY-SAMatthias Jauernig, CC BY-SA 3.0, via Wikimedia Commons

Drosera sargentii Lowrie & N.G.Marchant

Droseraceae · Western Australia · listed by its genus as a carnivorous plant

English names not checked: Wikidata's common names were not read for this page.

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Drosera sargentii, photograph Michal Rubeš, CC BY 3.0 cz, via Wikimedia CommonsDrosera sargentii, photograph DevOhm, CC BY-SA 3.0, via Wikimedia Commons 3 photographs ›
Habitat figures
Cold floor (1 night in 100)
3.7°C
Record low 0.8 °C in 44 years, at a typical spot in the range NASA POWER
Warmest month, mean daily high
23°C
Jan, Feb and Mar at the habitat CHELSA
Rain a year (median across the range)
648mm
10 months of 25 mm or more in the median year CHELSA
Open-sky light
15–47DLI
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 winters: the rain comes November to April (May to October at the habitat), read as a winter growing season. rain rule, CHELSA
Northern hemisphere unless you set your site. The chart is in the habitat's months.

Summary

Drosera sargentii is a species of pygmy sundew from Western Australia.

Quoted from Wikipedia, "Drosera sargentii", CC BY-SA 4.0.

About the genus · Drosera

Drosera, which is commonly known as the sundews, is one of the largest genera of carnivorous plants, with at least 194 species. These members of the family Droseraceae lure, capture, and digest insects using stalked mucilaginous glands covering their leaf surfaces. The insects are used to supplement the poor mineral nutrition of the soil in which the plants grow. More on Wikipedia ›

Quoted from Wikipedia, "Drosera", CC BY-SA 4.0.

Cultivation

Grouped as a carnivorous plant, listed under the genus Drosera in the archetype table, and Kew describes it as “perennial or subshrub”.

Seasons

The rain rule reads a winter growing season: 70% of the median year's rain (458 mm of 652 mm) falls in May to October, cooler than the year (wet-season mean 14.2 °C against a yearly mean of 16.4 °C). Months are the habitat's, southern hemisphere; shifted six months for a northern-hemisphere collection: November to April.

Rain

652 mm in the median year at the habitat, 458 mm of it May to October. Wettest month July at 97 mm, driest month December at 19 mm. Across the grid cells of the range the year's total runs 592 mm to 710 mm, the 10th to 90th percentile of each cell's own year. The median of the cells' own yearly totals, 648 mm, is the year's rain at the top of the page; the 652 mm here is the median year's, the twelve monthly medians added, which the rain rule reads. Habitat calendar, southern hemisphere; median year across the grid cells of the range, CHELSA.

Light

Open sky over the habitat: 15 to 47 mol/m²/day across the year (daily light integral, median year across the grid cells of the range, CHELSA).

Warmth and air
Temperature

Coldest: the 1st-percentile night over 44 years at a typical spot in the range is 3.7 °C, the absolute minimum 0.8 °C, no frost in 44 years (NASA POWER daily minima). Warmest: the 99th-percentile day is 40.5 °C. Monthly means: the coldest month's mean nightly low 10.5 °C in July (across the grid cells of the range 9.6 °C to 11.2 °C), the warmest month's mean daily high 23.4 °C in February (median year across the grid cells of the range, CHELSA). Cold floor: 3.7 °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: 57 to 59% 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 -47 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 Drosera in the archetype table, and Kew describes it as “perennial or subshrub”. 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, southern hemisphere

Habitat climate of Drosera sargentii through the yearWarmest months January, February and March, mean daily high 23 °C; coldest month July, mean nightly low 10.5 °C; 652 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, southern hemisphere.-10°0°10°20°30°40°50°frost40.5° 99th-percentile day, NASA POWER0.8° lowest night in 44 years, NASA POWER°C · day and nightcold quarter0255075100125mm rainDLI 15–47RH 57–59%JanFebMarAprMayJunJulAugSepOctNovDec
day night rain medians and 10th–90th percentile across 10 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 / 22–2423 / 23–2523 / 22–2321 / 21–2219 / 18–1916 / 16–1715 / 15–1616 / 16–1617 / 17–1819 / 18–2020 / 20–2221 / 21–23
Night °C17 / 16–1717 / 17–1716 / 16–1715 / 14–1513 / 12–1412 / 11–1211 / 10–1111 / 10–1111 / 11–1212 / 12–1314 / 14–1415 / 15–16
Rain mm39 / 36–4022 / 20–2433 / 32–3643 / 40–4471 / 64–7791 / 77–10697 / 81–11389 / 76–10064 / 53–7046 / 41–4838 / 32–4019 / 19–20
DLI47 / 46–4741 / 41–4233 / 33–3425 / 24–2518 / 18–1815 / 15–1516 / 16–1621 / 21–2129 / 29–2937 / 37–3844 / 43–4447 / 47–47
RH %58 / 57–5959 / 57–5959 / 58–5958 / 58–595858 / 57–5858 / 57–58575858 / 57–5858 / 57–5958 / 57–59
How this section is made
Each figure is the median across the 10 grid cells holding the 13 in-range records, 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 2474:6036 (-33.725, 121.825). Over 44 years there: absolute minimum 0.8 °C, 1st-percentile night 3.7 °C, 99th-percentile day 40.5 °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 10 distinct grid cells holding 13 of the 13 in-range records; extremes and elevation at the typical cell 2474:6036 (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 -33.50_121.875, lapse-corrected -47 m at 6.5 °C/km. Elevation: ETOPO 2022, 98 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.

This species has no GBIF key of its own. Its records are GBIF's under the key of the name Kew's World Checklist holds as this plant: 3190986 (Drosera parvula subsp. sargentii (Lowrie & N.Marchant) Schlauer, 20 records). No name was matched to GBIF; the keys are read from Kew's synonymy. How.

NativeWestern Australia · 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 marker-33.823, 122.106 · in the densest population, 12 records (92% of those in range)
Kew's description“perennial or subshrub” · “subtropical” · quoted from WCVP, RBG Kew (CC BY 4.0); not derived here
Evidence usedThe map marker and the climate across the range rest on all 13 georeferenced records inside the native range; the map shows only the 12 openly licensed ones, which alone would put the marker in the same place.
Other GBIF keysRecords also from GBIF's key 3190986 (Drosera parvula subsp. sargentii (Lowrie & N.Marchant) Schlauer): Kew's file holds it as Drosera parvula subsp. sargentii (Lowrie & N.G.Marchant) Schlauer (synonym under Drosera sargentii Lowrie & N.G.Marchant); 20 records, from GBIF's download.
How this section is made
The map marker: the openly licensed record nearest the middle of the densest 1° population of the 13 in-range records; it decides nothing. Records outside the native range, living specimens and records marked introduced are not used; which records count.

Photographs

Drosera sargentii, photograph 1did not loadDrosera sargentii, photograph 2did not load

Photographs: Michal Rubeš, CC BY 3.0 cz, via Wikimedia Commons; DevOhm, CC BY-SA 3.0, via Wikimedia Commons.

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

Hakea clavata Hakea clavata Coastal Hakea Photo: CC BY, Em LamondOrphium frutescens Orphium frutescens Sea rose Photo: CC BY, Patrick JacksonAgathosma imbricata Agathosma imbricata Tile Buchu Photo: CC BY-SA, Dave UDischisma ciliatum Dischisma ciliatum Fringe Falseslugwort Photo: CC BY, Cricket RaspetRoepera flexuosa Roepera flexuosa Thin Twinleaf Photo: CC BY, Cricket RaspetNemesia affinis Nemesia affinis Common Lionface Photo: CC BY, Cricket Raspet

Other Drosera 260 in the reference

Drosera aberrans Drosera aberrans Scented sundew Photo: CC BY, Peter CrowcroftDrosera acaulis Drosera acaulis Droseraceae Photo: CC BY-SA, Chris Vynbos Drosera actinioides Droseraceae Drosera adelae Drosera adelae Droseraceae Photo: CC BY, Matt BDrosera admirabilis Drosera admirabilis Droseraceae Photo: CC BY-SA, BrentbenedumDrosera affinis Drosera affinis Slender-leaved Sundew Photo: CC BY, Kristof ZyskowskiDrosera alba Drosera alba White Sundew Photo: CC0, author not statedDrosera albonotata Drosera albonotata Droseraceae Photo: CC BY, Hugo InnesDrosera aliciae Drosera aliciae Alice sundew Photo: CC BY-SA, Nicola van BerkelDrosera allantostigma Drosera allantostigma Pygmy Sundew Photo: CC BY-SA, DevOhmDrosera amazonica Drosera amazonica Droseraceae Photo: CC BY-SA, Thibaud AronsonDrosera andersoniana Drosera andersoniana Droseraceae Photo: CC BY, Hugo Innes all 261 ›

Names & registers

Also known as Drosera parvula subsp. sargentii. (WCVP, RBG Kew)

IPNIPOWOWikidataWFOWikipedia

The record

Family
Droseraceae
Described by
Lowrie & N.G.Marchant
Native to
Western Australia
Wild records
13 in range · 12 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
Kew's names (WCVP) kew.names answeredas of 2026-06-04Kew's entry Drosera sargentii Lowrie & N.G.Marchant (plant_name_id 64577), read from Kew's names file
GBIF species record gbif.species not askedGBIF's backbone holds no one accepted species of this name, and a name it holds only as another species' synonym is not taken for this one, so GBIF's records were not asked
GBIF synonyms gbif.synonyms not askedGBIF's backbone holds no one accepted species of this name, and a name it holds only as another species' synonym is not taken for this one, so GBIF's records were not asked
GBIF common names gbif.vernacular not askedGBIF's backbone holds no one accepted species of this name, and a name it holds only as another species' synonym is not taken for this one, so GBIF's records were not asked
WCVP native range wcvp.distribution answeredas of 2026-06-04
GBIF occurrence records gbif.occurrences answeredas of 2026-10-21this species has no GBIF key of its own; its records are read under GBIF's keys for the names Kew's file holds as this plant, never by a name matched; GBIF occurrence download https://doi.org/10.15468/dl.hbdw64, of 2026-10-21; 20 records of GBIF's key 3190986, Drosera parvula subsp. sargentii (Lowrie & N.Marchant) Schlauer (Kew's file holds it as Drosera parvula subsp. sargentii (Lowrie & N.G.Marchant) Schlauer (synonym under Drosera sargentii Lowrie & N.G.Marchant)): the GBIF download
Habitat climate climate answeredasked 2026-10-22
Daily extremes (NASA POWER) climate.extremes answeredasked 2026-10-22NASA POWER (MERRA-2) daily 1981–2024, cell -33.50_121.875, lapse-corrected -47 m at 6.5 °C/km
Wikidata wikidata answeredasked 2026-10-22found by Kew's IPNI identifier 968226-1, POWO 968226-1
Wikipedia wikipedia answeredasked 2026-10-22
iNaturalist photographs, wild inat.photos.wild not asked
iNaturalist photographs, cultivated inat.photos.cultivated not asked
GBIF media gbif.media not askedGBIF's backbone holds no one accepted species of this name, and a name it holds only as another species' synonym is not taken for this one, so GBIF's records were not asked
Wikimedia Commons commons 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 5 datasets via GBIF.org; each carries its own licence.

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