sensitive joint-vetch (Aeschynomene virginica)
Where Listed: WHEREVER FOUND
The sensitive jointvetch is an annual legume native to the eastern United States. Populations currently exist in Maryland, New Jersey, North Carolina, and Virginia. The historical range for the species extended to Delaware and Pennsylvania. In Virginia, populations are found along the Potomac, Mattaponi, Pamunkey, Rappahannock, Chickahominy, and James Rivers and their tributaries. This plant usually attains a height of three to six feet in a single growing season, but may grow as tall as eight feet. The flowers are yellow, streaked with red and the fruit is a pod, turning dark brown when ripe.
- States/US Territories in which the sensitive joint-vetch, Wherever found is known to or is believed to occur: Maryland , New Jersey , North Carolina , Virginia
- US Counties in which the sensitive joint-vetch, Wherever found is known to or is believed to occur: View All
- USFWS Refuges in which the sensitive joint-vetch, Wherever found is known to occur:
James River National Wildlife Refuge, Presquile National Wildlife Refuge, Rappahannock River Valley National Wildlife Refuge
|Status||Date Listed||Lead Region||Where Listed|
|05/20/1992||Northeast Region (Region 5)||Wherever found|
» Federal Register Documents
|07/26/1991||56 FR 34162 34167||ETWP; Proposal to the List Aeschynomere virginica (Sensitive Joint-Vetch) as a Threatened Species; 56 FR 34162 34167|
|12/16/2008||73 FR 76373 76375||Initiation of 5-Year Reviews of 7 Listed Species: Notice of review; request for information|
|09/02/1994||59 FR 45705||Notice of Availability of a Draft Recovery Plan for the Sensitive Joint- Vetch fo Review and Comment|
|05/20/1992||57 FR 21569 21574||ETWP; Determination of Threatened Status for the Sensitive Joint-Vetch (Aeschynomene virgincia); 57 FR 21569 21574|
|Date||Title||Plan Action Status||Plan Status|
|09/29/1995||Sensitive Joint Vetch||View Implementation Progress||Final|
|Date||Citation Page||Title||Document Type|
|09/02/1994||59 FR 45705||Notice of Availability of a Draft Recovery Plan for the Sensitive Joint- Vetch fo Review and Comment||
|12/16/2008||73 FR 76373 76375||Initiation of 5-Year Reviews of 7 Listed Species: Notice of review; request for information||
|09/25/2013||Sensitive Joint-Vetch (Aeschynomene virginica) 5-Year Review: Summary and Evaluation|
» Critical Habitat
No critical habitat rules have been published for the sensitive joint-vetch.
» Conservation Plans
No conservation plans have been created for sensitive joint-vetch.
» Life History
The joint-vetch occurs in fresh to slightly brackish tidal river systems, within the intertidal zone where populations are flooded twice daily. It typically occurs at the outer fringe of marshes or shores; its presence in marsh interiors may be a result of nutrient deficiencies, ice scouring, or muskrat herbivory. The sensitive joint-vetch is found in localities where plant diversity is high and annual species are prevalent. Bare to sparsely vegetated substrates appear to be a habitat feature of critical importance for establishment and growth of this species.
Plants flower from July through September and into October in some years. Fruits are produced from July through late October, concurrent with flowering.
» Other Resources
NatureServe Explorer Species Reports -- NatureServe Explorer is a source for authoritative conservation information on more than 50,000 plants, animals and ecological communtities of the U.S and Canada. NatureServe Explorer provides in-depth information on rare and endangered species, but includes common plants and animals too. NatureServe Explorer is a product of NatureServe in collaboration with the Natural Heritage Network.
ITIS Reports -- ITIS (the Integrated Taxonomic Information System) is a source for authoritative taxonomic information on plants, animals, fungi, and microbes of North America and the world.
FWS Digital Media Library -- The U.S. Fish and Wildlife Service's National Digital Library is a searchable collection of selected images, historical artifacts, audio clips, publications, and video.