Vicia nigricans

Vicia nigricans
	ssp. gigantea
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Eudicots
Clade:	Rosids
Order:	Fabales
Family:	Fabaceae
Subfamily:	Faboideae
Tribe:	Fabeae
Genus:	Vicia
Species:	V. nigricans
Binomial name
	Vicia nigricans; Hook. & Arn.
Synonyms
	Vicia gigantea Hook. (non Bunge)

Vicia nigricans is a species of vetch known by the common name black vetch. It has a disjunct distribution, its two subspecies divided by thousands of miles in range. The northern subspecies, ssp. gigantea (giant vetch), is native to western North America from Alaska to northern California, where it occurs in coastal and moist inland habitat and disturbed areas. The southern subspecies, ssp. nigricans, occurs in southern South America, in Argentina and Chile.^[1]

This vetch is a perennial herb with stout, hollow, and ridged climbing stems that may reach two meters in length. It attaches to objects and other plants by its large branched tendrils for support.^[2] The leaves are made up of 9 to 13 pairs of lance-shaped or elongated oval leaflets that may measure up to 4 centimeters in length.^[2] The inflorescence is a one-sided raceme of up to 15 or 20 flowers which have pale pink to dark reddish purple or sometimes yellowish to orange corollas. The flowers, each with a calyx about half as long as the corolla, are 1 to 2 centimeters long. They yield fruits which are legume pods measuring up to 4 centimeters long by 1.5 wide. As they dry they turn black.

References

^ "Vicia nigricans subsp. nigricans". Germplasm Resources Information Network. Agricultural Research Service, United States Department of Agriculture. Retrieved 23 January 2018.
^ ^a ^b Pojar, Jim; Andy MacKinnon (2004). Plants Of The Pacific Northwest Coast: Washington, Oregon, British Columbia & Alaska. Lone Pine Publishing. p. 193. ISBN 978-1-55105-530-5.

External links

Media related to Vicia nigricans at Wikimedia Commons

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[1] "Vicia nigricans subsp. nigricans". Germplasm Resources Information Network. Agricultural Research Service, United States Department of Agriculture. Retrieved 23 January 2018.

[Pojar-2] Pojar, Jim; Andy MacKinnon (2004). Plants Of The Pacific Northwest Coast: Washington, Oregon, British Columbia & Alaska. Lone Pine Publishing. p. 193. ISBN 978-1-55105-530-5.

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