Overview
Dioscoreaceae is a family of monocotyledonous flowering plants, with about 750 species in eight or nine genera. The best-known member of the family is the Yam (Dioscorea).
The APG system (1998) and APG II system (2003) both place it in the order Dioscoreales, in the clade monocots. However, the circumscription changed in the APG II system, with the 2003 system expanded to include the plants that in the 1998 system were treated in the families Taccaceae and Trichopodaceae.
- Borderea
- Dioscorea
- Epipetrum
- Rajania
- Stenomeris
- Tamus (often included in Dioscorea)
- (Taccaceae)
- Tacca
- (Trichopodaceae)
- Avetra
- Trichopus
External links
- Dioscoreaceae, Taccaceae, Trichopodaceae in L. Watson and M. J. Dallwitz (1992 onwards), The families of flowering plants
- Monocot families (USDA)
- Flora of North America: Dioscoreaceae
- NCBI Taxonomy Browser
- Dioscoreaceae links, Taccaceae links, Trichopodaceae links at CSDL, Texas
Taxonomy
The Family Dioscoreaceae is further organized into finer groupings including:
- Subfamily (3): Rhododendroideae · Spiraeoideae · Trollioideae
- Tribe (3): Delphinieae · Rhododendreae · Spiraeeae
- Genus (18): Avetra · Bordera · Borderea · Botryosicyos · Dioscorea · Discorea · Epipetrum · Helmia · Nanarepenta · Oncus · Rajania · Rhizemys · Steireya · Stenomeris · Tamnus · Tamus · Testudinaria · Thamnus
- Species: ZipcodeZoo has pages for 1,445 species, subspecies, varieties, forms, and cultivars in the Family Dioscoreaceae.
Genera
Avetra
Bordera
Borderea
Botryosicyos
Dioscorea
Dioscorea is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extending into temperate climates. It is named after the ancient Greek physician and botanist Dioscorides. [more]
Discorea
Epipetrum
Helmia
Nanarepenta
Oncus
Rajania
Rhizemys
Steireya
Stenomeris
Tamnus
Tamus
Tamus is a genus of one or two species of flowering plants in the family Dioscoreaceae, native to Europe, northwestern Africa, and western Asia. The genus is now often included within the related genus Dioscorea, but is maintained as distinct by some authors. [more]
Testudinaria
Thamnus
More info about the Genus Thamnus may be found here.
Sources
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