Characteristics
Monocots
Dioscorea villosa L.
WILD YAM; FOURLEAF YAM
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Native
FACW (NWPL)
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Classification
Citation
DIOSCOREA VILLOSA Linnaeus, Sp. Pl. 1033. 1753.
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VIRGINIA: Without data, Clayton 94 (lectotype: BM). Lectotypified by S. F. Blake, Rhodora 2: 49. 1918.
Species Distribution Map
Based on vouchered plant specimens from wild populations. Cultivated occurrences are not mapped. Click on a county to display its name.
Source
County
Herbaria
Literature Citation (If Applicable)
No sources found
Synonyms
Synonym
Full Citation
Basionym
Type
Dioscorea cliffortiana
Dioscorea cliffortiana Lamarck, Encycl. 3: 232. 1789, nom. illegit.
BASIONYM: Dioscorea sativa Linnaeus 1753.
Dioscorea glauca
Dioscorea glauca Muhlenberg ex Bartlett, Bull. Bur. Pl. Industr., U.S.D.A.. 189: 10, 13. 1910.
Dioscorea hexaphylla
Dioscorea hexaphylla Rafinesque, New Fl. 2: 89. 1837 ("1836").
TYPE: VIRGINIA:
Dioscorea hirticaulis
Dioscorea hirticaulis Bartlett, Bull. Bur. Pl. Industr., U.S.D.A. 189: 17. 1910.
Dioscorea lloydiana
Dioscorea lloydiana E. H. L. Krause, Beih. Bot. Centralbl. 32(2): 331. 1914.
BASIONYM: Dioscorea villosa Linnaeus, var. glabra C. Lloyd 1880.
Dioscorea longifolia
Dioscorea longifolia Rafinesque, New Fl. 2: 89. 1837 ("1836").
TYPE: ALABAMA:
Dioscorea megaptera
Dioscorea megaptera Rafinesque, New Fl. 2: 88. 1837 ("1836").
TYPE: KENTUCKY:
Dioscorea paniculata
Dioscorea paniculata Michaux, Fl. Bor.-Amer. 2: 239. 1803, nom. illegit.
BASIONYM: Dioscorea villosa Linnaeus 1753.
Dioscorea paniculata var. glabrifolia
Dioscorea paniculata Michaux, var. glabrifolia Bartlett, Bull. Bur. Pl. Industr., U.S.D.A. 189: 15. 1910.
Dioscorea pruinosa
Dioscorea pruinosa Kunth, Enum. Pl. 5: 338. 1850.
Specimens and Distribution
Click on an Accession Number to view additional details about the specimen.
Counties listed:
Range of years during which specimens were collected:
Accession No.
Country
State
County
Collection Date
Collector & Collection No
Notes
Image
No specimens found
Plant Photos
