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Lathyrus magellanicus; photograph Philipp Pavelka, CC BY, iNaturalist via GBIF CC BYPhilipp Pavelka, CC BY, iNaturalist via GBIF

Lathyrus magellanicus Lam.

Lord Anson's pea; Magellanic vetchling

Fabaceae · Bolivia, Colombia +7

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Lathyrus magellanicus, photograph Zinnia Xu, CC0, iNaturalist via GBIFLathyrus magellanicus, photograph Nicolás Lavandero, CC BY, iNaturalist via GBIFLathyrus magellanicus, photograph Nicolás Lavandero, CC BY, iNaturalist via GBIFLathyrus magellanicus, photograph Nicolás Lavandero, CC BY, iNaturalist via GBIFLathyrus magellanicus, photograph Nicolás Lavandero, CC BY, iNaturalist via GBIFLathyrus magellanicus, photograph Nicolás Lavandero, CC BY, iNaturalist via GBIF 24 photographs ›
Habitat figures
Cold floor (1 night in 100)
-7.9°C
Record low -13.8 °C in 44 years, at a typical spot in the range NASA POWER
Warmest month, mean daily high
17°C
Jan and Feb at the habitat CHELSA
Rain a year (median across the range)
1,473mm
12 months of 25 mm or more in the median year CHELSA
Open-sky light
10–49DLI
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 October to March (April to September at the habitat), with nights below freezing; no growing season read. rain rule, CHELSA
Northern hemisphere unless you set your site. The chart is in the habitat's months.

Summary

Lathyrus magellanicus is a species of Lathyrus found in Argentina, Bolivia, Chile, Colombia, Ecuador, Peru, and Uruguay.

Quoted from Wikipedia, "Lathyrus magellanicus", CC BY-SA 4.0.

About the genus · Lathyrus

Lathyrus is a genus of flowering plants in the legume family Fabaceae, and contains approximately 160 species. Commonly known as peavines or vetchlings, they are native to temperate areas, with a breakdown of 52 species in Europe, 30 species in North America, 78 in Asia, 24 in tropical East Africa, and 24 in temperate South America. There are annual and perennial species which may be climbing or bushy. More on Wikipedia ›

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

Cultivation

Seasons

The rain rule reads a rainy season and no growing season: 70% of the median year's rain (999 mm of 1,423 mm) falls in April to September, the cooler part of the year, but the mean nightly low is below freezing in July, August and September, so the rule reads no growing season from it. Months are the habitat's, southern hemisphere; shifted six months for a northern-hemisphere collection: October to March.

Rain

1,423 mm in the median year at the habitat, 999 mm of it April to September. Wettest month June at 219 mm, driest month February at 52 mm. Across the grid cells of the range the year's total runs 616 mm to 3,436 mm, the 10th to 90th percentile of each cell's own year. The median of the cells' own yearly totals, 1,473 mm, is the year's rain at the top of the page; the 1,423 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: 10 to 49 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 4, the highest 90th-percentile month 57).

Warmth and air
Temperature

Coldest: the 1st-percentile night over 44 years at a typical spot in the range is -7.9 °C, the absolute minimum -13.8 °C, 3,187 frost nights in 44 years, 72.4 a year (NASA POWER daily minima). Warmest: the 99th-percentile day is 17.4 °C. Monthly means: the coldest month's mean nightly low -1.5 °C in July (across the grid cells of the range -5.5 °C to 8.6 °C), the warmest month's mean daily high 17.1 °C in February (median year across the grid cells of the range, CHELSA). Cold floor: -7.9 °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: 60 to 67% 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 -495 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, southern hemisphere

Habitat climate of Lathyrus magellanicus through the yearWarmest months January and February, mean daily high 17 °C; coldest month July, mean nightly low -1.5 °C; 1,423 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.-20°-10°0°10°20°30°frost17.4° 99th-percentile day, NASA POWER-13.8° lowest night in 44 years, NASA POWER°C · day and nightcold quarter0100200300400500600mm rainDLI 10–49RH 60–67%JanFebMarAprMayJunJulAugSepOctNovDec
day night rain medians and 10th–90th percentile across 170 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 °C17 / 11–2417 / 11–2415 / 10–2212 / 6–198 / 3–165 / 0–144 / -1–145 / 1–158 / 3–1511 / 5–1813 / 7–2015 / 10–22
Night °C7 / 3–157 / 4–156 / 2–144 / 0–122 / -3–10-1 / -5–10-2 / -6–9-1 / -5–90 / -4–102 / -2–114 / 0–126 / 2–13
Rain mm59 / 1–24252 / 2–22178 / 8–291133 / 26–337198 / 105–451219 / 97–524188 / 91–433156 / 75–378105 / 40–250103 / 17–27268 / 10–23164 / 2–245
DLI47 / 32–5641 / 28–5031 / 20–4021 / 11–3013 / 6–2210 / 4–1912 / 6–2118 / 11–2727 / 19–3436 / 28–4445 / 33–5349 / 34–57
RH %60 / 52–6960 / 54–6962 / 54–6964 / 55–7067 / 55–7167 / 57–7166 / 56–6965 / 57–6863 / 57–6762 / 57–6861 / 55–6860 / 53–68
How this section is made
Each figure is the median across the 170 grid cells holding the 243 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 2821:2140 (-51.075, -72.975). Over 44 years there: absolute minimum -13.8 °C, 1st-percentile night -7.9 °C, 99th-percentile day 17.4 °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 170 distinct grid cells holding 243 of the 243 in-range records; extremes and elevation at the typical cell 2821:2140 (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 -51.00_-73.125, lapse-corrected -495 m at 6.5 °C/km. Elevation: ETOPO 2022, 135 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.
NativeBolivia, Colombia, Ecuador, Peru, Argentina South, Argentina Northwest, Chile Central, Chile South, Uruguay · 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-33.31, -71.648 · in the densest population, 227 records (52% of those in range)
Kew's description“perennial” · “temperate” · quoted from WCVP, RBG Kew (CC BY 4.0); not derived here
Evidence usedThe map marker rests on all 435 georeferenced records inside the native range; the climate across the range on the 243 of them placed to within 10 km; the map shows only the 221 openly licensed ones, which alone would put the marker 490 km away. 11 records outside the WCVP native range not used. 192 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 435 in-range records; it decides nothing. Records outside the native range, living specimens and records marked introduced are not used; which records count.

Photographs

Lathyrus magellanicus, photograph 1did not loadLathyrus magellanicus, photograph 2did not loadLathyrus magellanicus, photograph 3did not loadLathyrus magellanicus, photograph 4did not loadLathyrus magellanicus, photograph 5did not loadLathyrus magellanicus, photograph 6did not load

Photographs: Zinnia Xu, CC0, iNaturalist via GBIF; Nicolás Lavandero, CC BY, iNaturalist via GBIF (5).

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

Sisyrinchium patagonicum Sisyrinchium patagonicum Yellow maiden Photo: CC BY, Ariadna TripaldiBerberis microphylla Berberis microphylla Box-leaved barberry Photo: CC BY-SA, Grzegorz GrzejszczakOzothamnus hookeri Ozothamnus hookeri Kerosene-bush Photo: CC0, author not statedDiscaria chacaye Discaria chacaye Rhamnaceae Photo: CC BY-SA, Grzegorz GrzejszczakRichea gunnii Richea gunnii Ericaceae Photo: CC BY-SA, RmclaineCystopteris tasmanica Cystopteris tasmanica Bladder Fern Photo: CC BY, Hannah Rogers

Other Lathyrus 65 in the reference

Lathyrus alpestris Lathyrus alpestris Fabaceae Photo: CC BY-SA, Michael WolfLathyrus annuus Lathyrus annuus Fodder pea Photo: CC BY, Mehdi ChetibiLathyrus aphaca Lathyrus aphaca Yellow vetchling Photo: CC BY, Orzigul Anvarova Lathyrus articulatus Fabaceae Lathyrus aureus Lathyrus aureus Golden Pea Photo: CC BY, Сергей ГолубевLathyrus belinensis Lathyrus belinensis Belin Sweet Pea Photo: CC BY, JarroNevsbaru Lathyrus cassius Sweet Pea Lathyrus chloranthus Yellow-green pea Lathyrus cicera Lathyrus cicera Red vetchling Photo: CC0, author not statedLathyrus cirrhosus Lathyrus cirrhosus Cirrhose Vetch Photo: CC BY, Nico HernandezLathyrus clymenum Lathyrus clymenum Spanish vetchling Photo: CC BY, zebedeugalinhaLathyrus davidii Lathyrus davidii China Davida Photo: CC BY, Tatyana Petrenko all 66 ›

Names & registers

Also known as Lathyrus magellanicus var. normalis; Lathyrus megellanicus; Orobus magellanicus. (GBIF Backbone)

GBIFPOWOIPNIWFOWikidataWikipedia

The record

Family
Fabaceae
Described by
Lam.
Native to
Bolivia, Colombia, Ecuador +6
Wild records
435 in range · 221 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
Habitat climate climate answeredasked 2026-10-22
Daily extremes (NASA POWER) climate.extremes answeredasked 2026-10-22NASA POWER (MERRA-2) daily 1981–2024, cell -51.00_-73.125, lapse-corrected -495 m at 6.5 °C/km
Wikidata wikidata answeredasked 2026-10-22
Wikipedia wikipedia answeredasked 2026-10-22
iNaturalist taxon inat.taxon not asked
iNaturalist photographs, wild inat.photos.wild not asked
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 53 datasets via GBIF.org; each carries its own licence.

Cultifolio

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