Cynanchum utahense (Engelm.) Woods.
Family: Apocynaceae
Utah swallow-wort,  more...
[Astephanus utahensis Engelm.]
Cynanchum utahense image
Stan Shebs  
Plant: herbacious vine; Stems pilose at base, glabrous upwards or sparsely pubescent at the nodes; milky sap Leaves: linear, 1-6 cm long, ca. 0.2 cm broad, more or less revolute, glabrous above, sparsely pubescent to glabrate below, the margins sparsely ciliate; petioles absent or indistinct INFLORESCENCE: umbelliform, ca. 1 cm across, the peduncles mostly 1-2 cm long Flowers: ca. 3-4 mm long; calyx lobes 1-2 mm long; corolla yellowish, cylindric-campanulate, the tube 2-3 mm long, pubescent inside, the lobes incurved and hooded, their tips more or less closing the corolla tube; crown absent; anther wings 0.5-0.6 mm long; corpusculum 0.3-0.4 mm long, the pollinia oblong-obovate, ca. 0.4 mm long; stigma head apically rounded Fruit: FOLLICLES ca. 6-7 cm long Misc: deserts, sand dunes; 150-900 m (500-3000 ft); Apr-Jun REFERENCES: Sundell, Eric. 1994. Asclepiadaceae. J. Ariz. - Nev. Acad. Sci. Volume 27, 169-187.
Cynanchum utahense image
Gregory Gust  
Cynanchum utahense image
Gregory Gust  
Cynanchum utahense image
Gregory Gust  
Cynanchum utahense image
National Museum of Natural History Image Collection  
Cynanchum utahense image
National Museum of Natural History Image Collection  
Cynanchum utahense image
Cynanchum utahense image
Cynanchum utahense image
Cynanchum utahense image
Cynanchum utahense image
Cynanchum utahense image
Cynanchum utahense image
Cynanchum utahense image
Cynanchum utahense image
Cynanchum utahense image
Blake Wellard  
Cynanchum utahense image
Cynanchum utahense image
Cynanchum utahense image
Cynanchum utahense image
Cynanchum utahense image
Cynanchum utahense image
Cynanchum utahense image
Teague Embrey  
Cynanchum utahense image
Cynanchum utahense image
Cynanchum utahense image
Cynanchum utahense image
Cynanchum utahense image
Cynanchum utahense image