Cucurbita cordata is a species of flowering plant in thesquash family.[2][3] It is similar toCucurbita californica,Cucurbita cylindrata,Cucurbita digitata, andCucurbita palmata and all these species hybridize readily.[4] These species form the only restrictedxerophytespecies group in the genusCucurbita. Each member of this species group is native to theSouthwestern United States and Northwestern Mexico where they are relatively uncommon. Each group member is found in hot, arid regions with low rainfall. They prefer soil that is loose, gravelly, and well-drained.C. cordata is found only in the vicinity ofBahía de los Ángeles,Baja California. Botanists Bemis and Whitaker suggest thatC. cordata andC. cylindrata may be a case ofsympatric speciation. The juvenile leaves ofC. cylindrata,C. cordata,C. digitata, andC. palmata show a high degree of similarity, but their mature leaves are visibly different, as are their root structures.C. cordata fruits are gray green, striped, and round.[5]
| Cucurbita cordata | |
|---|---|
Scientific classification | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Rosids |
| Order: | Cucurbitales |
| Family: | Cucurbitaceae |
| Genus: | Cucurbita |
| Species: | C. cordata |
| Binomial name | |
| Cucurbita cordata | |
It was first identified bySereno Watson in 1889.[3]
References
edit- ^Sánchez de la Vega, G.; Castellanos Morales, G.; Contreras, A.; Aragón Cuevas, F.; Lira Saade, R. (2019)."Cucurbita cordata".IUCN Red List of Threatened Species.2019: e.T109928550A109928555.doi:10.2305/IUCN.UK.2019-2.RLTS.T109928550A109928555.en. Retrieved18 November 2021.
- ^"Cucurbita cordata".Germplasm Resources Information Network.Agricultural Research Service,United States Department of Agriculture. RetrievedSeptember 27, 2013.
- ^abNee, Michael (1990). "The Domestication ofCucurbita (Cucurbitaceae)".Economic Botany.44 (3, Supplement: New Perspectives on the Origin and Evolution of New World Domesticated Plants). New York: New York Botanical Gardens Press:56–68.Bibcode:1990EcBot..44S..56N.doi:10.1007/BF02860475.JSTOR 4255271.
- ^Puchalski, J. T.; Robinson, R. W. (1978)."Comparative Electrophoretic Analysis of Isozymes inCucurbita Species".Cucurbit Genetics Cooperative Report.1. Raleigh, NC: North Carolina State University: 28.
- ^Bemis, W. P.;Whitaker, Thomas W. (April 1969). "The XerophyticCucurbita of Northwestern Mexico and Southwestern United States".Madroño.20 (2). California Botanical Society:33–41.JSTOR 41423342.
External links
edit"Cucurbita cordata".TheEncyclopedia of Life.
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