Oregon Flora Image Project
Tragopogon dubius Scopoli yellow salsify - exotic, naturalized
Asteraceae:
Cichorieae

Click on an image for a larger version.  All images Gerald D. Carr unless otherwise noted.

  W 18th Ave between Willow Creek and S Bertelsen Rd., N44.03883, W123.16979, Lane Co., OR, 6/10/2008 W 18th Ave between Willow Creek and S Bertelsen Rd., N44.03883, W123.16979, Lane Co., OR, 6/10/2008  
   
W 18th Ave between Willow Creek and S Bertelsen Rd., N44.03883, W123.16979, Lane Co., OR, 6/10/2008 Along Hwy 22, 6.8 mi. SE of jct. with Hwy 97 at Toppenish, 700 ft. elev., N46.30840, W120.20711, Yakima Co., WASHINGTON, 5/30/2010 ( Robert L. Carr) Cheney, Spokane Co., WASHINGTON, 8/15/1986
Cheney, Spokane Co., WASHINGTON, 8/15/1986   Along Hwy 97 N of Goldendale, N45.85685, W120.77891, Klickitat Co., WASHINGTON, 6/11/2011, Robert L. Carr
Tragopogon.mirus is an allotetraploid species (2n=24) derived from hybridization between T. dubius (2n=12) and T. porrifolius (2n=12).  The image on the right shows a mix of the parental species, T. porrifolius (purple heads), T. dubius (yellow heads), and an individual with hybrid morphology (purple head with yellow center, circled).  This individual is either a sterile F1 hybrid or the derived fertile allotetraploid, T. mirus. Simple pollen and seed fertility tests would likely resolve this question.

 


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