CalPhotos    Photo Database

Polygonum californicum; California Knotweed   

Contributors      Log In  
 

click photo for larger file
Polygonum californicum
Polygonum californicum
California Knotweed
Photographer: Steve Matson

ID: 0000 0000 0904 0713 (2004-09-30)

Copyright © 2004 Steve Matson

 
INFORMATION PROVIDED WITH THE PHOTO
  • date of photo  Sep 30, 2004
  • date collected  Sep 18, 2004
  • latitude 39.30200   longitude -120.11980     View on Google Maps.
  • this photo depicts a plant that was cultivated or collected in the wild
  • photo location   Matson Photo Lab;7660 North Ave. Kings Beach, Placer Co. CA
  • plant's place of origin   Martis Valley, southeast of Truckee, 50 meters north of 267, 50 meters west of Martis Creek, elevation 5,828 ft. (Placer County, California, US)
  • family Polygonaceae
  • notes   specimen collected by Steve Matson #1157 on 18 September 2004. An earlier collection #826 collected on 4 July 2003.
  • camera   Canon EOS D60 with MP-E 65mm macro lens
  • contributor's ID #  C:Botany ImagesPolygonaceaePolygonumcalifornicum11-2500.jpg
  • photo category: Plant - annual/perennial

  • MORE INFORMATION ABOUT THIS PLANT
  • common names   California Knotweed (ITIS )
  • Look for Jepson Manual treatments, maps (University & Jepson Herbaria)
  • View Calflora record for Polygonum californicum
  • View all photos in CalPhotos of Polygonum californicum
  • Check Google Images for Polygonum californicum


  • The photographer's identification Polygonum californicum 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 © 2004 Steve Matson. For other uses, or if you have questions, contact Steve Matson ssmat[AT]sbcglobal.net. (Replace the [AT] with the @ symbol before sending an email.)


     

    Copyright © 1995-2023 UC Regents. All rights reserved.

    CalPhotos is a project of BNHM     University of California, Berkeley