Phaseolus dumosus

Phaseolus dumosus, the year bean or year-long bean,[1][2] is an annual to perennial herbaceous vine in the family Fabaceae (legumes), native to a narrow region in the highlands of Guatemala.[2][3] It is one of the five Phaseolus domesticates and is similarly used for its beans.[1] It was recently found to be a hybrid between two other cultivated species of Central America, Phaseolus coccineus and P. vulgaris and displays intermediate characteristics.[2] Taxonomically, it was previously categorized as Phaseolus polyanthus and P. coccineus ssp. darwinianus.[4]

Phaseolus dumosus
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Fabales
Family: Fabaceae
Subfamily: Faboideae
Tribe: Phaseoleae
Subtribe: Phaseolinae
Genus: Phaseolus
Species:
P. dumosus
Binomial name
Phaseolus dumosus
Macfady
Synonyms
  • Phaseolus polyanthus Greenm.
  • Phaseolus flavescens Piper
  • Phaseolus leucanthus Piper
  • Phaseolus harmsianus Diels.
  • Phaseolus coccineus subsp. darwinianus Hernandez & Miranda

This species grows in humid forests and may reach 10 meters in length. It is visited by carpenter bees.[3]

References
  1. Bitocchi, Elena; Rau, Domenico; Bellucci, Elisa; Rodriguez, Monica; Murgia, Maria L.; Gioia, Tania; Santo, Debora; Nanni, Laura; Attene, Giovanna (2017-05-08). "Beans (Phaseolus ssp.) as a Model for Understanding Crop Evolution". Frontiers in Plant Science. 8: 722. doi:10.3389/fpls.2017.00722. ISSN 1664-462X. PMC 5420584. PMID 28533789.
  2. Mina-Vargas, Angela M.; McKeown, Peter C.; Flanagan, Nicola S.; Debouck, Daniel G.; Kilian, Andrzej; Hodkinson, Trevor R.; Spillane, Charles (2016-08-06). "Origin of year-long bean (Phaseolus dumosus Macfady, Fabaceae) from reticulated hybridization events between multiple Phaseolus species". Annals of Botany. 118 (5): 957–969. doi:10.1093/aob/mcw138. ISSN 0305-7364. PMC 5055819. PMID 27497241.
  3. Freytag, George F. (2002). Taxonomy, distribution, and ecology of the genus Phaseolus (Leguminosae-Papilionoideae) in North America, Mexico and Central America. Botanical Research Institute of Texas. ISBN 1889878111. OCLC 249436749.
  4. Schmit, V.; Debouck, D. G. (July 1991). "Observations on the origin of Phaseolus polyanthus Greenman". Economic Botany. 45 (3): 345–364. doi:10.1007/bf02887077. ISSN 0013-0001. S2CID 31661991.


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