Vicia unijuga, commonly called two-leaf vetch,[2] is a species of flowering plant in the legume family.

Vicia unijuga
Scientific classification Edit this 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
Synonyms[1]

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

It is native to eastern Asia, where it is widespread, its range extending through China, Korea, Mongolia, Japan and Russia.[3] It is very common in both China and Japan, and may be the most common species of Vicia in China.[3][4] It is found in a variety of forested and open habitats.[3]

It is a perennial that produces purple flowers in the summer and fall.[3][4] 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

edit
  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. ^ a b c d Flora of China, Vicia unijuga
  4. ^ a b Ohwi, Jisaburo (1965). Flora of Japan. Smithsonian Institution. p. 565.