{{Short description|Species of legume}} {{Speciesbox | image = LathyrusVenosusWhiteshellPP20170617.jpg | status = G5 | status_system = TNC | status_ref = <ref name="NS"/> | genus = Lathyrus | species = venosus | authority = Muhl. ex Willd | synonyms = | synonyms_ref = }}
'''''Lathyrus venosus''''' is a species of flowering plant native to North America. It is part of the botanical family Fabaceae and is commonly known as '''veiny pea'''.<ref name=":1">{{Cite web |title=Michigan Flora |url=https://michiganflora.net/record/1315 |access-date=2025-05-18 |website=michiganflora.net}}</ref><ref name=":2">{{Cite web |title=veiny pea (Lathyrus venosus) |url=https://www.inaturalist.org/taxa/164444-Lathyrus-venosus |access-date=2025-05-18 |website=iNaturalist |language=en}}</ref>
== Description == ''Lathyrus venosus'' is a perennial vine with herbaceous stems, growing from a creeping rhizome.<ref name=":0">{{Cite web |title=Lathyrus venosus - Species Page - APA: Alabama Plant Atlas |url=http://floraofalabama.org/Plant.aspx?id=1978 |access-date=2025-05-18 |website=floraofalabama.org}}</ref> The stems are climbing or sprawling and measure about {{Convert|3-4|ft|m|1|abbr=off|order=flip}} in length.<ref name=":0" /> The leaves are alternate and even-pinnate with usually 8–12 leaflets, ending in a branched tendril.<ref name=":0" /><ref>{{Cite web |title=Online Virtual Flora of Wisconsin Taxon Profile |url=https://wisflora.herbarium.wisc.edu/taxa/index.php?taxon=4024 |access-date=2025-05-18 |website=wisflora.herbarium.wisc.edu}}</ref><ref>{{Cite web |title=Lathyrus venosus Muhl. ex Willd. |url=https://www.worldfloraonline.org/taxon/wfo-0000173697 |archive-url=https://web.archive.org/web/20230118180156/http://www.worldfloraonline.org/taxon/wfo-0000173697 |archive-date=2023-01-18 |access-date=2025-05-19 |website=www.worldfloraonline.org |language=en |url-status=live }}</ref> Each leaflet is roughly oval in shape, is untoothed, and lacks hair.<ref name=":0" /> The papilionaceous flowers grow from the leaf axils in clusters of 8–15. They are arranged in a raceme and are generally pink, purple, or blue.<ref name=":0" /> The fruit is a hairless seedpod.<ref name=":0" />
== Distribution and habitat == ''Lathyrus venosus'' grows naturally in most of southeastern continental Canada and eastern continental United States.{{Efn|Specifically: Alberta, Manitoba, Ontario, Quebec, and Saskatchewan (in Canada); Alabama, Arkansas, District of Columbia, Georgia, Illinois, Indiana, Iowa, Kentucky, Louisiana, Maryland, Michigan, Minnesota, Missouri, New Jersey, New Mexico, New York, North Carolina, North Dakota, Oklahoma, Pennsylvania, South Carolina, South Dakota, Tennessee, Texas, Virginia, West Virginia, and Wisconsin (in the USA).}}<ref>{{Cite web |title=Lathyrus venosus Muhl. ex Willd. {{!}} Plants of the World Online {{!}} Kew Science |url=https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:502081-1 |access-date=2025-05-18 |website=Plants of the World Online |language=en}}</ref> It generally grows in pine and prairie woodlands, along streams, on rocky slopes and roadsides, and in sandy ground.<ref name=":1" /><ref name=":0" />
== Conservation status == The plant is globally secure, although in some parts of its range it may be at a lower status locally.<ref name="NS">{{Cite web |title=NatureServe Explorer 2.0 |url=https://explorer.natureserve.org/Taxon/ELEMENT_GLOBAL.2.144086/Lathyrus_venosus |access-date=2025-05-19 |website=explorer.natureserve.org}}</ref><ref name=":0" />
== Names == Common names include veiny pea,<ref name=":1" /><ref name=":2" /> veiny vetchling,<ref name=":0" /><ref name=":3">{{Cite web |title=Lathyrus venosus Muhlenberg ex Willdenow |url=https://www.gbif.org/species/100021504 |access-date=2025-05-19 |website=www.gbif.org |language=en}}</ref> bushy vetchling<ref>{{Cite web |title=Lathyrus venosus Muhl. ex Willd. |url=https://www.gbif.org/species/102288727 |access-date=2025-05-19 |website=www.gbif.org |language=en}}</ref> forest pea,<ref name=":4">{{Cite web |title=Lathyrus venosus Muhl. ex Willd. |url=https://www.gbif.org/species/101362977 |access-date=2025-05-19 |website=www.gbif.org |language=en}}</ref> smooth veiny-pea,<ref name=":4" /> smooth veiny peavine,<ref name=":3" /> and ''gesse veinée'' (in French).<ref name=":3" />
== Notes == {{Notelist}}
== References == {{Reflist}}
{{Taxonbar|from=Q15477401}}
venosus Category:Flora of Canada Category:Flora of the United States Category:Perennial plants Category:Vines Category:Plants described in 1802 Category:Taxa named by Carl Ludwig Willdenow Category:Taxa named by Gotthilf Heinrich Ernst Muhlenberg