Plant Details

Lathyrus tuberosus

Earthnut Pea, Tuberous sweetpea

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Common names

35 names · 25 languages
EnglishYour language
  • Dutch-mice[1]
  • earth chestnut[1]
  • earthnut[1]
+4 more namesShow fewer names
  • Earthnut Pea
  • Fyfield pea[1]
  • tuberous pea[1]
  • Tuberous sweetpea
Other languages (24)
Dutch
French
  • Gesse tubéreuse[1]
  • Gland-de-terre[1]
  • Macusson[1]
+1 more nameShow fewer names
Catalan
  • guixera borda[1]
Chinese (Simplified)
  • 玫红山黧豆[1]
Chinese (Traditional)
  • 玫紅山黧豆[1]
Croatian
  • Gomoljasta graholika[1]
  • Gomoljasta kukavičica[1]
Czech
  • hrachor hlíznatý[1]
Danish
  • Knold-fladbælg[1]
Estonian
  • seapähkel[1]
Finnish
  • mukulanätkelmä[1]
German
  • Knollen-Platterbse[1]
Hungarian
  • mogyorós lednek[1]
Italian
  • Cicerchia tuberosa[1]
Japanese
  • キュウコンエンドウ[1]
Lithuanian
  • Gumbinis pelėžirnis[1]
Norwegian
  • jordflatbelg[1]
Polish
  • Groszek bulwiasty[1]
Romanian
  • Oreșniță[1]
Russian
  • Чина клубненосная[1]
Slovak
  • hrachor hľuznatý[1]
Slovenian
  • gomoljasti grahor[1]
Swedish
Turkish
Ukrainian
  • Чина бульбиста[1]
Sources & name notes (1)

Names recorded in our plant catalogue and botanical sources, grouped by language. Usage can vary by region.

Numbered references identify names recorded by an external source. Other names are from our plant catalogue.

[1] Lathyrus tuberosus — iNaturalist taxon names ↗

Community-curated iNaturalist taxonomy; common-name attestation, not an independent botanical determination.

Source records
  • tuberous pea — results[0].names[1]; taxon id 55729; Lathyrus tuberosus.
  • Fyfield pea — results[0].names[2]; taxon id 55729; Lathyrus tuberosus.
  • Dutch-mice — results[0].names[4]; taxon id 55729; Lathyrus tuberosus.
  • earthnut — results[0].names[5]; taxon id 55729; Lathyrus tuberosus.
  • earth chestnut — results[0].names[6]; taxon id 55729; Lathyrus tuberosus.
  • Knollen-Platterbse — results[0].names[7]; taxon id 55729; Lathyrus tuberosus.
  • guixera borda — results[0].names[9]; taxon id 55729; Lathyrus tuberosus.
  • gesse tubéreuse — results[0].names[10]; taxon id 55729; Lathyrus tuberosus.
  • hrachor hlíznatý — results[0].names[11]; taxon id 55729; Lathyrus tuberosus.
  • Knold-fladbælg — results[0].names[12]; taxon id 55729; Lathyrus tuberosus.
  • seapähkel — results[0].names[13]; taxon id 55729; Lathyrus tuberosus.
  • Чина клубненосная — results[0].names[14]; taxon id 55729; Lathyrus tuberosus.
  • jordflatbelg — results[0].names[15]; taxon id 55729; Lathyrus tuberosus.
  • knölvial — results[0].names[16]; taxon id 55729; Lathyrus tuberosus.
  • mukulanätkelmä — results[0].names[17]; taxon id 55729; Lathyrus tuberosus.
  • Gumbinis pelėžirnis — results[0].names[18]; taxon id 55729; Lathyrus tuberosus.
  • Aardaker — results[0].names[19]; taxon id 55729; Lathyrus tuberosus.
  • Groszek bulwiasty — results[0].names[20]; taxon id 55729; Lathyrus tuberosus.
  • キュウコンエンドウ — results[0].names[21]; taxon id 55729; Lathyrus tuberosus.
  • hrachor hľuznatý — results[0].names[22]; taxon id 55729; Lathyrus tuberosus.
  • 玫紅山黧豆 — results[0].names[23]; taxon id 55729; Lathyrus tuberosus.
  • 玫红山黧豆 — results[0].names[24]; taxon id 55729; Lathyrus tuberosus.
  • Чина бульбиста — results[0].names[25]; taxon id 55729; Lathyrus tuberosus.
  • gomoljasti grahor — results[0].names[26]; taxon id 55729; Lathyrus tuberosus.
  • mogyorós lednek — results[0].names[27]; taxon id 55729; Lathyrus tuberosus.
  • Oreșniță — results[0].names[28]; taxon id 55729; Lathyrus tuberosus.
  • Macusson — results[0].names[29]; taxon id 55729; Lathyrus tuberosus.
  • Sanard — results[0].names[30]; taxon id 55729; Lathyrus tuberosus.
  • Gland-de-terre — results[0].names[31]; taxon id 55729; Lathyrus tuberosus.
  • koşkoz — results[0].names[32]; taxon id 55729; Lathyrus tuberosus.
  • Cicerchia tuberosa — results[0].names[33]; taxon id 55729; Lathyrus tuberosus.
  • Gomoljasta kukavičica — results[0].names[34]; taxon id 55729; Lathyrus tuberosus.
  • Gomoljasta graholika — results[0].names[35]; taxon id 55729; Lathyrus tuberosus.

General information

Scientific name: Lathyrus tuberosus
Accepted name (Kew): Lathyrus tuberosus L. View name reference ↗

Accepted in the cited Kew taxonomic treatment.

Sources [1] [2]
Botanical family: Fabaceae

Kew's family placement for the genus Lathyrus (WCVP v16).

Sources [1]
Also known as: Earthnut Pea, Tuberous sweetpea
Images: Google Images

Plant characteristics

Layer: Herbaceous
Catalogue size class: Small
Height: 1.20 m
Spread: 1.20 m
Growth rate: None
Foliage: None

Growing conditions

USDA hardiness: 5-9
Soil moisture:
Moist
Soil:
Sand (light) Loam (medium) Clay (heavy)
pH:
Acidic Neutral Alkaline
Light:
Partial shade, Full sun

Uses

Edible parts:
Root
Edibility rating:
(5)
Medicinal rating:
(0)
Functions:
Nitrogen fixer, Bee forage

Description

The root can be eaten both cooked and raw. It is sweet and rich in starch, and tastes delicious when baked, with a flavor that is somewhat similar to that of sweet potato. The taste of this root is consistently strong, making it a favorite among connoisseurs. Unfortunately, the yield of this plant is quite low, making it more suitable to be used as a flavoring rather than as a main crop.

Harvest

Harvest starts: 01/09
Harvest ends: 31/10

Sources and references

References for the information marked with source numbers on this page.

Sources checked
  1. Royal Botanic Gardens, Kew World Checklist of Vascular Plants, version 16, extracted 4 June 2026
    Supports: Botanical familyTaxonomy
    Relevant sections
    • Botanical family: WCVP v16, wcvp_names.csv row 66935; name ID 2352057; Lathyrus L.. Family column.
    • Taxonomy: WCVP v16, wcvp_names.csv row 62646; name ID 2351044; Lathyrus tuberosus L..

    Source checked on .

    Source data licence: CC BY 3.0.

  2. Catalogue of Life Catalogue of Life 2026-08-20 — Lathyrus tuberosus

    Taxonomic data from WCVP-Fabaceae, version 2026, v.7, reproduced in Catalogue of Life 2026-08-20. This shares the Kew WCVP evidence base cited on this page.

    Supports: Taxonomy
    Relevant sections
    • Taxonomy: COL 2026-08-20, NameUsage.tsv line 500429, ID 3SL39: Lathyrus tuberosus L. (accepted).

    Source checked on .