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click photo for enlargement
Polygonum arenastrum
Common Knotweed
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Photographer: Douglas Barbe
Organization: California Dept. of Food & Agriculture, Botany Laboratory
Collection: CDFA
ID: 0175 3301 2363 0057 (2001-07-18)Copyright © 2001 CDFA
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| INFORMATION PROVIDED WITH THE PHOTO
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date of photo Jul 2, 1978
location Dogtown, Marin County (Marin County, California, US)photo category: Plant - annual/perennial
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MORE INFORMATION ABOUT THIS PLANT
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| common names
Common Knotweed, Doorweed, Matweed, Oval-leaf Knotweed, Ovalleaf Knotweed, Prostrate Knotweed (ITIS )
Look for Jepson Manual treatments, maps (University & Jepson Herbaria)View Calflora record for Polygonum arenastrumCheck the Plants Database (USDA website)View Encyclopedia of Life record for Polygonum arenastrumView all photos in CalPhotos of Polygonum arenastrum Check Google Images for Polygonum arenastrum |
Reviewers' comments about this photo (review or add another comment)
| 1. | Reviewed by Staff CDFA Jul 18, 2001 |
| Action: ID confirmed |
| Reviewer's comments: | | | | "This slide is from a collection at the California Department of Food and Agriculture, which is reviewed and maintained by CDFA Staff." |
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| 2. | Reviewed by Fred Hrusa Jul 11, 2005 |
| Action: changed name from "Piptochaetium setosum" to "Polygonum arenastrum
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| Reviewer's comments: | | | | "Error in original data entry - - plant is clearly misidentified." |
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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 © 2001 CDFA.
For other uses, or if you have questions, contact Dean Kelch dkelch[AT]cdfa.ca.gov. (Replace the [AT] with the @ symbol before sending an email.)
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