Taxon:  Phaseolus ritensis M. E. Jones



Summary
Genus:
Phaseolus
Section:
Coriacei
Family:
Fabaceae (alt. Leguminosae)
Subfamily:
Faboideae
Tribe:
Phaseoleae
Subtribe:
Phaseolinae
Nomen number:
301059
Place of publication:
Contr. W. Bot. 12:14.  1908
Verified:
03/24/2020 ARS Systematic Botanists.
Accessions:
28 (17  active, 3  available) in National Plant Germplasm System.  (Map it)
Other conspecific taxa
Autonyms (not in current use), synonyms and invalid designations
Homotypic Synonym(s)
Phaseolus maculatus Scheele subsp. ritensis (M. E. Jones) Freytag

Heterotypic Synonym(s)
Phaseolus ovatifolius Piper

No images


Conservation Status

Reference(s)
  1. Braak, J. P. & E. Kooistra. 1975. A successful cross between Phaseolus vulgaris L. and Phaseolus ritensis Jones with the aid of embryo culture. Euphytica 24:669-679. Note: Netherlands journal of plant breeding
  2. Debouck, D. G. 2021. Phaseolus beans (Leguminosae: Phaseoleae): a checklist and notes on their taxonomy and ecology. J. Bot. Res. Inst. Texas 15:73-111. DOI: 10.17348/jbrit.v15.i1.1052.
  3. Delgado-Salinas, A. & S. Gama-López. 2022. Nomenclátor del género Phaseolus para México. Base de datos SNIB-CONABIO. Proy. JE014. Instituto de Biología, Universidad Nacional Autónoma de México, Ciudad de Mexico.
  4. Delgado-Salinas, A. et al. 2006. Phylogeny of the genus Phaseolus (Leguminosae): a recent diversification in an ancient landscape. Syst. Bot. 31:779-791. Note: Phaseolus ritensis was in a separate subclade from P. maculatus
  5. Delgado-Salinas, A. 1985. Systematics of the genus Phaseolus (Leguminosae) in North and Central America 256. Note: Ph.D. dissertation, University of Texas
  6. Freytag, G. F. & D. G. Debouck. 2002. Taxonomy, distribution, and ecology of the genus Phaseolus (Leguminosae-Papilionoideae) in North America, Mexico and Central America. Sida, Bot. Misc. 23:257-260. Note: as Phaseolus maculatus subsp.ritensis
  7. Isely, D. 1998. Native and naturalized Leguminosae (Fabaceae) of the United States (exclusive of Alaska and Hawaii)
  8. Katanga, K. & J. P. Baudoin. 1987. Obtention de nouveaux hybrides interspécifiques avec Phaseolus lunatus L. Bull. Rech. Agron. Gembloux 22:33-42.
  9. Kearney, T. H. & R. H. Peebles. 1969. Arizona flora, ed. 2.
  10. Maesen, L. J. G. van der & Sadikin Somaatmadja, eds. 1989. Pulses. In: Faridah Hanum, I. & L. J. G. van der Maesen, eds., Plant Resources of South-East Asia (PROSEA) 1:59.
  11. Maréchal, R. et al. 1978. Étude taxonomique d'un groupe complexe d'espèces des genres Phaseolus et Vigna (Papilionaceae) sur la base données morphologiques et polliniques, traitées par l'analyse informatique. Boissiera 28:145.
  12. McVaugh, R. 1983-. Flora Novo-Galiciana.
  13. Shreve, F. & I. L. Wiggins. 1964. Vegetation and flora of the Sonoran desert.
Common names
Distribution
order_codeStatusContinentSubcontinentCountryStateNoteReference
1NativeNorthern AmericaNorthern MexicoMexicoChihuahua Freytag, G. F. & D. G. Debouck. 2002. Taxonomy, distribution, and ecology of the genus Phaseolus (Leguminosae-Papilionoideae) in North America, Mexico and Central America. Sida, Bot. Misc. 23:257-260. Note: as Phaseolus maculatus subsp.ritensis
1NativeNorthern AmericaNorthern MexicoMexicoDurango Freytag, G. F. & D. G. Debouck. 2002. Taxonomy, distribution, and ecology of the genus Phaseolus (Leguminosae-Papilionoideae) in North America, Mexico and Central America. Sida, Bot. Misc. 23:257-260. Note: as Phaseolus maculatus subsp.ritensis
1NativeNorthern AmericaNorthern MexicoMexicoSinaloa Freytag, G. F. & D. G. Debouck. 2002. Taxonomy, distribution, and ecology of the genus Phaseolus (Leguminosae-Papilionoideae) in North America, Mexico and Central America. Sida, Bot. Misc. 23:257-260. Note: as Phaseolus maculatus subsp.ritensis
1NativeNorthern AmericaNorthern MexicoMexicoSonora Freytag, G. F. & D. G. Debouck. 2002. Taxonomy, distribution, and ecology of the genus Phaseolus (Leguminosae-Papilionoideae) in North America, Mexico and Central America. Sida, Bot. Misc. 23:257-260. Note: as Phaseolus maculatus subsp.ritensis
1NativeNorthern AmericaNorthern MexicoMexicoZacatecas Freytag, G. F. & D. G. Debouck. 2002. Taxonomy, distribution, and ecology of the genus Phaseolus (Leguminosae-Papilionoideae) in North America, Mexico and Central America. Sida, Bot. Misc. 23:257-260. Note: as Phaseolus maculatus subsp.ritensis
1NativeNorthern AmericaSouthern MexicoMexicoJalisco Freytag, G. F. & D. G. Debouck. 2002. Taxonomy, distribution, and ecology of the genus Phaseolus (Leguminosae-Papilionoideae) in North America, Mexico and Central America. Sida, Bot. Misc. 23:257-260. Note: as Phaseolus maculatus subsp.ritensis
1NativeNorthern AmericaSouthern MexicoMexicoNayarit Freytag, G. F. & D. G. Debouck. 2002. Taxonomy, distribution, and ecology of the genus Phaseolus (Leguminosae-Papilionoideae) in North America, Mexico and Central America. Sida, Bot. Misc. 23:257-260. Note: as Phaseolus maculatus subsp.ritensis
1NativeNorthern AmericaSouthwestern U.S.A.United StatesArizonas.e.Freytag, G. F. & D. G. Debouck. 2002. Taxonomy, distribution, and ecology of the genus Phaseolus (Leguminosae-Papilionoideae) in North America, Mexico and Central America. Sida, Bot. Misc. 23:257-260. Note: as Phaseolus maculatus subsp.ritensis
5UncertainNorthern AmericaSouth-Central U.S.A.United StatesTexas Debouck, D. G. 2021. Phaseolus beans (Leguminosae: Phaseoleae): a checklist and notes on their taxonomy and ecology. J. Bot. Res. Inst. Texas 15:73-111. DOI: 10.17348/jbrit.v15.i1.1052.
Native
Northern America
  • SOUTHWESTERN U.S.A.: United States [Arizona (s.e.)]
  • NORTHERN MEXICO: Mexico [Chihuahua, Durango, Sinaloa, Sonora, Zacatecas]
  • SOUTHERN MEXICO: Mexico [Jalisco, Nayarit]
Uncertain
Northern America
  • SOUTH-CENTRAL U.S.A.: United States [Texas]

Reference(s)
  1. Debouck, D. G. 2021. Phaseolus beans (Leguminosae: Phaseoleae): a checklist and notes on their taxonomy and ecology. J. Bot. Res. Inst. Texas 15:73-111. DOI: 10.17348/jbrit.v15.i1.1052.
  2. Freytag, G. F. & D. G. Debouck. 2002. Taxonomy, distribution, and ecology of the genus Phaseolus (Leguminosae-Papilionoideae) in North America, Mexico and Central America. Sida, Bot. Misc. 23:257-260. Note: as Phaseolus maculatus subsp.ritensis
Cite as: USDA, Agricultural Research Service, National Plant Germplasm System. 2026. Germplasm Resources Information Network (GRIN Taxonomy). National Germplasm Resources Laboratory, Beltsville, Maryland.
URL: https://npgstest.ars-grin.gov/gringlobal/taxon/taxonomydetail?id=301059. Accessed 15 April 2026.