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Source: Dioscoreaceae of North America Update, database (version 2010)

ITIS records citing this source
 
 Kingdom Plantae
  Dioscorea L. -- accepted -- yam
  Dioscorea alata L. -- accepted -- water yam, winged yam
  Dioscorea altissima Lam. -- accepted -- dunguey
  Dioscorea batatas Decne. -- not accepted
  Dioscorea bulbifera L. -- accepted -- air potato, air yam, bitter yam
  Dioscorea cayenensis Lam. -- accepted -- yellow guinea yam
  Dioscorea cayennensis Lam. -- not accepted -- yellow yam
  Dioscorea composita Hemsl. -- accepted -- yam
  Dioscorea convolvulacea Cham. & Schltdl. -- accepted -- yam
  Dioscorea dumetorum (Kunth) Pax -- accepted -- bitter yam
  Dioscorea elephantipes (L'Hér.) Engl. -- accepted -- hottentot-bread
  Dioscorea esculenta (Lour.) Burkill -- accepted -- lesser yam
  Dioscorea esculenta var. esculenta (Lour.) Burkill -- not accepted
  Dioscorea esculenta var. tiliaefolia (Kunth) Fosberg & Sachet -- not accepted
  Dioscorea floribunda M. Martens & Galeotti -- accepted -- yam
  Dioscorea floridana Bartlett -- accepted -- Florida yam
  Dioscorea glauca Muhl. ex Bartlett -- not accepted
  Dioscorea hirticaulis Bartlett -- not accepted
  Dioscorea hispida Dennst. -- accepted -- intoxicating yam
  Dioscorea japonica Thunb. -- accepted -- Japanese yam
  Dioscorea latifolia Benth. -- not accepted
  Dioscorea macrostachya Benth. -- not accepted -- yam
  Dioscorea nummularia Lam. -- accepted -- yam
  Dioscorea oppositifolia L. -- accepted
  Dioscorea pentaphylla L. -- accepted -- fiveleaf yam
  Dioscorea pilosiuscula Bertero ex Spreng. -- accepted -- bulbous yam
  Dioscorea polygonoides Humb. & Bonpl. ex Willd. -- accepted -- mata gallina
  Dioscorea polystachya Turcz. -- accepted -- Chinese yam
  Dioscorea praehensilis Benth. -- accepted -- bush yam
  Dioscorea preussii Pax -- accepted -- Preuss' dioscorea
  Dioscorea quaternata J.F. Gmel. -- not accepted -- fourleaf yam
  Dioscorea quaternata var. glauca (Muhl. ex L.C. Beck) Fernald -- not accepted
  Dioscorea rotundata Poir. -- accepted -- Guinea yam
  Dioscorea sagittata Poir. -- accepted
  Dioscorea sansibarensis Pax -- accepted -- Zanzibar yam
  Dioscorea spiculiflora Hemsl. -- accepted -- yam
  Dioscorea trifida L. f. -- accepted -- Indian yam
  Dioscorea villosa L. -- accepted -- wild yam
  Dioscorea villosa var. floridana (Bartlett) H.E. Ahles -- not accepted
  Dioscorea villosa var. glabrifolia (Bartlett) Fernald -- not accepted
  Dioscorea villosa var. hirticaulis (Bartlett) H.E. Ahles -- not accepted
  Dioscoreaceae -- accepted -- Yam Family
  Rajania L. -- accepted -- rajania
  Rajania cordata L. -- accepted -- himber
   

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