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Vicia unijuga
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Eudicots
Clade:	Rosids
Order:	Fabales
Family:	Fabaceae
Subfamily:	Faboideae
Tribe:	Fabeae
Genus:	Vicia
Species:	V. unijuga
Binomial name
Vicia unijuga A.Braun
Synonyms
Ervum unijugum (A.Braun) Alef. Lathyrus messerschmidii Franch. & Sav. Orobus lathyroides L. Vicia austrohigoensis Honda Vicia linearifolia Y.N.Lee Vicia unijuga var. austrohigoensis (Honda) Sugim. ex Yonek. Vicia unijuga subsp. minor (Nakai) Y.N.Lee Vicia unijuga f. trifoliolata (Z.D.Xia) Y.Endo & H.Ohashi Vicia unijuga var. trifoliolata Z.D.Xia Vicia unijuga var. ulsaniana M.Kim & H.Jo Vicia unijuga var. waldeniana S.Y.Hu

Vicia unijuga, commonly called two-leaf vetch, is a species of flowering plant in the legume family.

It is native to eastern Asia, where it is widespread, its range extending through China, Korea, Mongolia, Japan and Russia. It is very common in both China and Japan, and may be the most common species of Vicia in China. It is found in a variety of forested and open habitats.

It is a perennial that produces purple flowers in the summer and fall. This species contains a considerable amount of morphological variation, with some forms and varieties being named.

Vicia unijuga historically included the similar-looking Vicia ohwiana, which has now been given the rank of species.

References

1. "Vicia unijuga A.Braun". Plants of the World Online. The Trustees of the Royal Botanic Gardens, Kew. n.d. Retrieved September 23, 2020.
2. NRCS. "Vicia unijuga". PLANTS Database. United States Department of Agriculture (USDA). Retrieved 6 January 2018.
3. ^ Flora of China, Vicia unijuga
4. ^ Ohwi, Jisaburo (1965). Flora of Japan. Smithsonian Institution. p. 565.

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