Funastrum utahense

{{Short description|Species of plant}}

{{Speciesbox

|image = Cynanchum utahense 3.jpg

|status = G4

|status_system = TNC

|status_ref = {{cite web |title=NatureServe Explorer 2.0 |url=https://explorer.natureserve.org/Taxon/ELEMENT_GLOBAL.2.136293/Cynanchum_utahense |website=explorer.natureserve.org |access-date=22 May 2023}}

|genus = Funastrum

|species = utahense

|authority = (Engelm.) Liede & Meve

|synonyms = *Astephanus utahense Engelm.

• Cynanchum utahense (Engelm.) Woodson

|synonyms_ref = {{cite web |title=Funastrum utahense (Engelm.) Liede & Meve |work=Plants of the World Online |publisher=Royal Botanic Gardens, Kew|url=https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:60427302-2 |access-date=2023-02-04 }}

}}

Funastrum utahense, synonym Cynanchum utahense, is a species of flowering plant in the genus Funastrum of the family Apocynaceae, known by the common names Utah swallow-wort and Utah vine milkweed. This relatively uncommon perennial vine is native to the Mojave Desert from California, Nevada, Utah and Arizona in the United States. This is a small vine with a highly branched, twining stem rarely exceeding a meter in length with which it physically supports itself on other shrubs and trees. It has small narrow leaves a few centimeters long. Its flowers are bright yellow to orange and grow in umbels. The fruit is a grooved follicle several centimeters long.Sundell, A. 1993. Asclepiadaceae, Milkweed Family. Journal of the Arizona-Nevada Academy of Science 27:169-187.[http://luirig.altervista.org/schedenam/fnam.php?taxon=Cynanchum+utahense Altervista Flora of USA and Canada, Cynanchum utahense].Woodson, R.E. Annals of the Missouri Botanical Garden 28(2): 215. 1941.Engelmann, G. American Naturalist 9(6): 349. 1875.Liede, S., & U. Meve. Nordic Journal of Botany 22(5): 589. 2003.