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Phyllanthus caroliniensis; photograph (c) Christopher Evans, some rights reserved (CC BY) CC BY(c) Christopher Evans, some rights reserved (CC BY) · observed growing wild · 2026-08-25

Phyllanthus caroliniensis Walter

Carolina leaf-flower

Phyllanthaceae · Illinois, Kansas +60

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Sow seed
Phyllanthus caroliniensis, photograph (c) Christopher Evans, some rights reserved (CC BY)Phyllanthus caroliniensis, photograph (c) Christopher Evans, some rights reserved (CC BY)Phyllanthus caroliniensis, photograph (c) Christopher Evans, some rights reserved (CC BY)Phyllanthus caroliniensis, photograph (c) Christopher Evans, some rights reserved (CC BY)Phyllanthus caroliniensis, photograph (c) Christopher Evans, some rights reserved (CC BY)Phyllanthus caroliniensis, photograph (c) Christopher Evans, some rights reserved (CC BY) 83 photographs ›
Habitat figures
Cold floor (1 night in 100)
-5.9°C
Record low -17.1 °C in 44 years, at a typical spot in the range NASA POWER
Warmest month, mean daily high
32°C
Jul at the habitat CHELSA
Rain a year (median across the range)
1,352mm
12 months of 25 mm or more in the median year CHELSA
Open-sky light
15–40DLI
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
Rain spread: 70% of the median year's rain takes 8 months, so no short rainy season. rain rule, CHELSA
Northern hemisphere unless you set your site. The chart is in the habitat's months.

Summary

Phyllanthus caroliniensis, the Carolina leafflower, is a flowering plant native to the Americas, from the southeastern United States all the way to Argentina. The flowers are small and located where the leaf meets the stem.

Quoted from Wikipedia, "Phyllanthus caroliniensis", CC BY-SA 4.0.

About the genus · Phyllanthus

Phyllanthus is the largest genus in the plant family Phyllanthaceae. Estimates of the number of species in this genus vary widely, from 750 to 1200. Phyllanthus has a remarkable diversity of growth forms including annual and perennial herbs, shrubs, climbers, floating aquatics, and pachycaulous succulents. More on Wikipedia ›

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

Cultivation

Seasons

The rain rule reads no short rainy season: 70% of the median year's rain (899 mm of 1,284 mm) takes 8 months, March to July and October to December. Mean temperature moves 19.9 °C between the warmest and coldest month. Months are the habitat's, northern hemisphere; shifted six months for a southern-hemisphere collection: September to January and April to June.

Rain

1,284 mm in the median year at the habitat, 899 mm of it March to July and October to December. Wettest month May at 126 mm, driest month January at 93 mm. Across the grid cells of the range the year's total runs 1,120 mm to 1,631 mm, the 10th to 90th percentile of each cell's own year. The median of the cells' own yearly totals, 1,352 mm, is the year's rain at the top of the page; the 1,284 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: 15 to 40 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 13, the highest 90th-percentile month 42).

Warmth and air
Temperature

Coldest: the 1st-percentile night over 44 years at a typical spot in the range is -5.9 °C, the absolute minimum -17.1 °C, 1,829 frost nights in 44 years, 41.6 a year (NASA POWER daily minima). Warmest: the 99th-percentile day is 38.6 °C. Monthly means: the coldest month's mean nightly low 3.3 °C in January (across the grid cells of the range -2.7 °C to 18.2 °C), the warmest month's mean daily high 31.6 °C in July (median year across the grid cells of the range, CHELSA). Cold floor: -5.9 °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: 56 to 60% 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 +13 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 Phyllanthus caroliniensis through the yearWarmest month July, mean daily high 32 °C; coldest month January, mean nightly low 3.3 °C; 1,284 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.-20°-10°0°10°20°30°40°frost38.6° 99th-percentile day, NASA POWER-17.1° lowest night in 44 years, NASA POWER°C · day and nightcold quarter050100150200250mm rainDLI 15–40RH 56–60%JanFebMarAprMayJunJulAugSepOctNovDec
day night rain medians and 10th–90th percentile across 662 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 °C13 / 6–2415 / 8–2520 / 14–2724 / 19–2827 / 24–3030 / 28–3232 / 29–3331 / 29–3429 / 26–3124 / 20–2819 / 14–2614 / 7–25
Night °C3 / -3–185 / -1–199 / 3–2013 / 9–2118 / 14–2321 / 19–2423 / 21–2423 / 20–2420 / 16–2314 / 11–229 / 5–205 / -1–19
Rain mm93 / 46–13994 / 53–143111 / 63–142109 / 63–130126 / 90–150117 / 97–227114 / 94–21098 / 75–205100 / 81–214106 / 82–145111 / 65–139105 / 50–154
DLI17 / 15–2422 / 20–2928 / 27–3536 / 34–4039 / 37–4140 / 38–4140 / 37–4237 / 34–3831 / 28–3325 / 22–3019 / 15–2615 / 13–23
RH %58 / 57–6157 / 56–6056 / 55–6056 / 54–6058 / 57–6259 / 58–6460 / 58–6360 / 57–6459 / 56–6357 / 56–6258 / 57–6159 / 57–61
How this section is made
Each figure is the median across the 662 grid cells on land that hold in-range records (768 records in those cells; 1 more cell holds records but no land by the elevation layer, so those records sit at sea and the cell is 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 1130:1949 (33.475, -82.525). Over 44 years there: absolute minimum -17.1 °C, 1st-percentile night -5.9 °C, 99th-percentile day 38.6 °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 662 distinct grid cells holding 768 of the 769 in-range records (1 further cell with records at sea, by the elevation layer, left out); extremes and elevation at the typical cell 1130:1949 (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_-82.500, lapse-corrected +13 m at 6.5 °C/km. Elevation: ETOPO 2022, 152 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.
NativeIllinois, Kansas, Missouri, Oklahoma, Indiana, New Jersey, Ohio, Pennsylvania, West Virginia, Texas, Alabama, Arkansas, Delaware, Florida, Georgia, Kentucky, Louisiana, Maryland, Mississippi, North Carolina, South Carolina, Tennessee, Virginia, District of Columbia, Mexico Central, Mexico Northeast, Mexico Gulf, Mexico Northwest, Mexico Southwest, Mexico Southeast, Belize, Costa Rica, Honduras, Nicaragua, Panama, Bahamas, Cuba, Dominican Republic, Haiti, Jamaica, Leeward Is. AB Ant, Southwest Caribbean, Turks-Caicos Is., Trinidad-Tobago, Windward Is., French Guiana, Guyana, Surinam, Venezuela, Bolivia, Colombia, Ecuador, Galápagos, Peru, Brazil West-Central, Brazil Northeast, Brazil Southeast, Brazil North, Brazil South, Argentina Northeast, Paraguay, Uruguay · introduced: Thailand · 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 marker32.939, -92.285 · in the densest population, 607 records (41% of those in range)
Kew's description“annual” · “temperate” · quoted from WCVP, RBG Kew (CC BY 4.0); not derived here
Evidence usedThe map marker rests on all 1480 georeferenced records inside the native range; the climate across the range on the 768 of them in the land cells it reads, of 769 placed to within 10 km; the map shows only the 911 openly licensed ones, which alone would put the marker 45 km away. 20 records outside the WCVP native range not used. 711 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 inside the densest 4° block of the 1480 in-range records; it decides nothing. Records outside the native range, living specimens and records marked introduced are not used; which records count.

Photographs

Phyllanthus caroliniensis, photograph 1did not loadPhyllanthus caroliniensis, photograph 2did not loadPhyllanthus caroliniensis, photograph 3did not loadPhyllanthus caroliniensis, photograph 4did not loadPhyllanthus caroliniensis, photograph 5did not loadPhyllanthus caroliniensis, photograph 6did not load

Photographs: (c) Christopher Evans, some rights reserved (CC BY) (6).

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

Yucca flaccida Yucca flaccida Weak-leaved yucca Photo: CC0, author not statedAcalypha gracilens Acalypha gracilens Slender copperleaf Photo: CC BY, James HardeeRhexia mariana Rhexia mariana Maryland meadow-beauty Photo: CC0, author not statedAesculus pavia Aesculus pavia Red buckeye Photo: CC BY-SA, Turner BrockmanSorghastrum elliottii Sorghastrum elliottii Slender Indian grass Photo: CC BY, Raven DandridgeVaccinium arboreum Vaccinium arboreum Sparkleberry Photo: CC0, author not stated

Other Phyllanthus 53 in the reference

Phyllanthus abnormis Phyllanthus abnormis Drummond's leaf-flower Photo: CC0, author not statedPhyllanthus acidus Phyllanthus acidus Otaheite gooseberry Photo: CC BY, Annika LindqvistPhyllanthus albiflorus Phyllanthus albiflorus Phyllanthaceae Photo: CC BY, Ethel AardvarkPhyllanthus amarus Phyllanthus amarus Carry me seed Photo: CC BY, Raja Sekhar ChimiralaPhyllanthus anamalayanus Phyllanthus anamalayanus Phyllanthaceae Photo: CC BY, Srinivasan KasinathanPhyllanthus angustifolius Phyllanthus angustifolius Foliage flower Photo: CC0, author not statedPhyllanthus arbuscula Phyllanthus arbuscula Phyllanthaceae Photo: CC BY-SA, User:BotBlnPhyllanthus assamicus Phyllanthus assamicus Phyllanthaceae Photo: CC BY-SA, VinayarajPhyllanthus buxifolius Phyllanthus buxifolius Phyllanthaceae Photo: CC0, author not statedPhyllanthus calycinus Phyllanthus calycinus Phyllanthaceae Photo: CC BY, Millie BradyPhyllanthus cernuus Phyllanthus cernuus Phyllanthaceae Photo: CC BY, Thomas MesaglioPhyllanthus chacoensis Phyllanthus chacoensis Phyllanthaceae Photo: CC BY, Tomás Tamagno all 54 ›

Names & registers

Also known as Diasperus caroliniensis; Phyllanthus caroliniensis var. caroliniensis; Synexemia caroliniensis. (GBIF Backbone)

GBIFPOWOIPNIWFOWikidataWikipediaiNaturalist

The record

Family
Phyllanthaceae
Described by
Walter
Native to
Illinois, Kansas, Missouri +59
Wild records
1480 in range · 911 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; 24 records within 1 km of a botanic garden, herbarium or zoo left out (18 at a botanic garden or arboretum, 2 at a herbarium, 4 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 33.50_-82.500, lapse-corrected +13 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 148 datasets via GBIF.org; each carries its own licence.

Cultifolio

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