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Penstemon X dubius; Doubtful Penstemon   

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Penstemon X dubius
Penstemon X dubius
Doubtful Penstemon
Photographer: Michael Charters

ID: 0000 0000 0516 1914 (2016-05-21)

Copyright © 2016 Michael Charters

  • date of photo  May 20, 2016
  • location   Strawberry Trail north of Red Box, San Gabriel Mts (Los Angeles County, California, US)
  • family Plantaginaceae
  • notes   Hybrid species of Penstemon centranthifolius and Penstemon grinnellii, currently unresolved taxon in Jepson e-flora but likely addition as named hybrid. Both parent taxa in immediate vicinity, some growing together.
  • photo category: Plant - annual/perennial

  • common names   Doubtful Penstemon (photographer)
  • Look for Jepson Manual treatments, maps (University & Jepson Herbaria)
  • View Calflora record for Penstemon X dubius
  • Check the Plants Database (USDA website)
  • View Encyclopedia of Life record for Penstemon X dubius
  • View all photos in CalPhotos of Penstemon X dubius
  • Check Google Images for Penstemon X dubius

  • The photographer's identification Penstemon X dubius has not been reviewed. Click here to review or comment on the identification.

    Using this photo   The thumbnail photo (128x192 pixels) on this page may be freely used for personal or academic purposes without prior permission under the Fair Use provisions of US copyright law as long as the photo is clearly credited with © 2016 Michael Charters. For other uses, or if you have questions, contact Michael Charters mmlcharters[AT] (Replace the [AT] with the @ symbol before sending an email.)


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