Vigna marina(Burm.) Merr.

Beach peaNotched cowpeanotched cowpea

WFO wfo-0000184221 Accepted WFO 2026-06 8 photographs CC0 / CC BY / CC BY-SA

Plate 1 figs. a–h · 8 separate observations

Vigna marina, photographed by Jon Sullivan
fig. a Jon Sullivan, CC BY 4.0 / 2022-04-19 / obs. 197660812

Every figure is a research-grade observation under CC0, CC BY or CC BY-SA, rehosted with the photographer’s name, the licence and the observation it came from. Photographs under a NonCommercial licence are excluded from this site and are never stored, which costs us a great many pictures and is not negotiable.

Native range 71 botanical countries

Regions where Vigna marina is native: Aldabra, Cameroon, Central African Republic, Chagos Archipelago, Congo, Equatorial Guinea, Gabon, Ghana, Gulf of Guinea Is., Ivory Coast, KwaZulu-Natal, Liberia, Madagascar, Mauritius, Mozambique, Nigeria, Réunion, Seychelles, Tanzania, China Southeast, Hainan, Japan, Kazan-retto, Nansei-shoto, Ogasawara-shoto, Taiwan, Andaman Is., Bangladesh, Bismarck Archipelago, Borneo, Cocos (Keeling) Is., India, Jawa, Laccadive Is., Lesser Sunda Is., Malaya, Maldives, Maluku, Myanmar, New Guinea, Nicobar Is., Philippines, Solomon Is., South China Sea, Sri Lanka, Sulawesi, Sumatera, Thailand, Vietnam, New South Wales, Norfolk Is., Northern Territory, Queensland, Caroline Is., Cook Is., Fiji, Gilbert Is., Hawaii, Marianas, Marshall Is., Nauru, Niue, Samoa, Society Is., Tokelau-Manihiki, Tonga, Tuamotu, Tubuai Is., Tuvalu, Vanuatu, Wallis-Futuna Is. CameroonCentral African RepublicCongoEquatorial GuineaGabonGhanaGulf of Guinea Is.Ivory CoastKwaZulu-NatalLiberiaMadagascarMozambiqueNigeriaTanzaniaChina SoutheastHainanJapanTaiwanBangladeshBismarck ArchipelagoBorneoIndiaJawaLesser Sunda Is.MalayaMalukuMyanmarNew GuineaPhilippinesSolomon Is.Sri LankaSulawesiSumateraThailandVietnamNew South WalesNorthern TerritoryQueenslandFijiHawaii AldabraChagos ArchipelagoMauritiusRéunionSeychellesNansei-shotoAndaman Is.Laccadive Is.MaldivesNicobar Is.South China SeaNorfolk Is.Caroline Is.Cook Is.MarianasMarshall Is.NauruNiueSamoaSociety Is.Tokelau-ManihikiTongaTuamotuTubuai Is.TuvaluVanuatuWallis-Futuna Is.
Native distribution of Vigna marina, after Kew’s World Checklist of Vascular Plants. Introduced, extinct and doubtful records are excluded, so this is where the plant is from, not everywhere it now grows. Regions too small to draw at this scale are marked with a dot.
RegionTDWG codeContinent
Andaman Is. AND ASIA-TROPICAL
Bangladesh BAN
Bismarck Archipelago BIS
Borneo BOR
Cocos (Keeling) Is. CKI
India IND
Jawa JAW
Laccadive Is. LDV
Lesser Sunda Is. LSI
Malaya MLY
Maldives MDV
Maluku MOL
Myanmar MYA
New Guinea NWG
Nicobar Is. NCB
Philippines PHI
Solomon Is. SOL
South China Sea SCS
Sri Lanka SRL
Sulawesi SUL
Sumatera SUM
Thailand THA
Vietnam VIE
Aldabra ALD AFRICA
Cameroon CMN
Central African Republic CAF
Chagos Archipelago CGS
Congo CON
Equatorial Guinea EQG
Gabon GAB
Ghana GHA
Gulf of Guinea Is. GGI
Ivory Coast IVO
KwaZulu-Natal NAT
Liberia LBR
Madagascar MDG
Mauritius MAU
Mozambique MOZ
Nigeria NGA
Réunion REU
Seychelles SEY
Tanzania TAN
Caroline Is. CRL PACIFIC
Cook Is. COO
Fiji FIJ
Gilbert Is. GIL
Hawaii HAW
Marianas MRN
Marshall Is. MRS
Nauru NRU
Niue NUE
Samoa SAM
Society Is. SCI
Tokelau-Manihiki TOK
Tonga TON
Tuamotu TUA
Tubuai Is. TUB
Tuvalu TUV
Vanuatu VAN
Wallis-Futuna Is. WAL
China Southeast CHS ASIA-TEMPERATE
Hainan CHH
Japan JAP
Kazan-retto KZN
Nansei-shoto NNS
Ogasawara-shoto OGA
Taiwan TAI
New South Wales NSW AUSTRALASIA
Norfolk Is. NFK
Northern Territory NTA
Queensland QLD

Not drawn on the map: Kazan-retto, Ogasawara-shoto, Cocos (Keeling) Is., Gilbert Is.. We hold no public-domain boundary for these regions, so they are listed rather than guessed at.

Region boundaries approximated from Natural Earth (public domain) and mapped to TDWG World Geographical Scheme for Recording Plant Distributions (WGSRPD) level-3 botanical countries (Brummitt 2001). Indicative, not the official WGSRPD geometry.

Flowering 120 in flower of 132 examined

Proportion of examined Vigna marina in flower, by month
Month In flower Examined Share 95% interval
Jan 7 7 100% 65% to 100%
Feb 3 6 50% 19% to 81%
Mar 16 16 100% 81% to 100%
Apr 16 18 89% 67% to 97%
May 9 11 82% 52% to 95%
Jun 8 8 100% 68% to 100%
Jul 5 6 83% 44% to 97%
Aug 12 13 92% 67% to 99%
Sep 10 10 100% 72% to 100%
Oct 14 16 88% 64% to 97%
Nov 9 10 90% 60% to 98%
Dec 11 11 100% 74% to 100%

Peak flowering in Jan. Each bar is the share of Vigna marina observations in which someone actually recorded the reproductive state and found the plant in flower, not the raw number of flowering records. That distinction matters: people observe plants far more in spring than in winter, so a bare count of flowering records partly measures when people go outside. Dividing by the number examined removes that. 120 of 132 examined observations were in flower, every one of them research grade. The whisker on each bar is a 95% Wilson interval. This is still a global aggregate and not a forecast for your garden: the same species flowers on different dates in different hemispheres. Where a species has fewer than 30 flowering records we do not draw this chart at all. Computed from 10.15468/dl.cgje2x.

Also published as 13 synonyms

A synonym is not an error. It is a record of botanists disagreeing, in print, about where this plant belongs. Each of these was somebody’s considered answer.

  • Dolichos luteus Sw.
  • Dolichos retusus E.Mey.
  • Dolichos savii Montrouz.
  • Phaseolus marinus Burm.
  • Phaseolus obovatus Graham
  • Scytalis anomala Vogel
  • Scytalis retusa E.Mey.
  • Vigna anomala Walp.
  • Vigna lutea (Sw.) A.Gray
  • Vigna lutea var. samoensis Hochr.
  • Vigna repens var. lutea (Sw.) Kuntze
  • Vigna retusa (E.Mey.) Walp.
  • Vigna rotundifolia Hassk.

Sourcesevery claim on this page

  1. World Flora Online Plant List. accepted name, authority, classification. CC0. Retrieved 2026-07-12.
  2. iNaturalist. photographs and flowering annotations, CC0 / CC BY / CC BY-SA only. per photograph. Retrieved 2026-06-27.
  3. Wikidata. common name (P1843), joined on the World Flora Online identifier (P7715). CC0. Retrieved 2026-07-13.
  4. Kew, World Checklist of Vascular Plants (WCVP v16). native distribution by TDWG level-3 botanical country, and life form. CC BY 3.0. Retrieved 2026-06-04.

We publish what we can source and we say so when we cannot. This page has no care advice and no toxicity claim, because we do not yet have those from a source we can cite.