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Calflora |
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| Searching for: | genus: Polygonum |
| Click on the Scientific Name to see a Taxon Report. | |
| Polygonum argyrocoleon | |||
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Silver sheath knotweed
non-native
Annual herb |
 © 2019 Bob Sweatt |
 © 2020 Ron Vanderhoff |
 © 2019 Bob Sweatt |
| Polygonum austiniae | |||
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Rebecca austin's knotweed
native
Annual herb |
 © 2019 Gerald Carr |
 © 2019 Gerald Carr |
 © 2019 Gerald Carr |
| Polygonum aviculare | |||
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Prostrate knotweed
non-native
Annual, Perennial herb |
 © 2016 John Doyen CalPhotos (UCB) |
 © 2008 Keir Morse CalPhotos (UCB) |
 © 2010 Lee Dittmann CalPhotos (UCB) |
| Polygonum aviculare ssp. aviculare | |||
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Prostrate knotweed
non-native
Annual, Perennial herb |
 © 2020 Ron Vanderhoff With Polygonum argyrocoleon LEFT. |
 © 2020 Ron Vanderhoff With Polygonum argyrocoleon LEFT. |
 © 2020 Ron Vanderhoff |
| Polygonum aviculare ssp. buxiforme | |||
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Prostrate knotweed
non-native
Annual, Perennial herb |
no photo |
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| Polygonum aviculare ssp. depressum | |||
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Prostrate knotweed
non-native
Annual, Perennial herb |
 © 2016 Barbara Boethling |
 © 2009 Barry Breckling CalPhotos (UCB) |
 © 2014 Richard Chasey |
| Polygonum aviculare ssp. neglectum | |||
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Prostrate knotweed
non-native
Annual, Perennial herb |
no photo |
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| Polygonum aviculare ssp. rurivagum | |||
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Prostrate knotweed
non-native
Annual, Perennial herb |
 © 2008 Doreen L. Smith CalPhotos (UCB) |
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| Polygonum bidwelliae | |||
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Bidwell's knotweed
rare, native
Annual herb |
 © 2021 Donald Burk |
 © 2010 George W. Hartwell CalPhotos (UCB) |
 © 2019 David popp |
| Polygonum bolanderi | |||
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Bolander's polygonum
native
Perennial herb |
 © 2008 John Dittes CalPhotos (UCB) |
 © 2015 Dana York CalPhotos (UCB) |
 © 2020 R.A. Chasey |
| Polygonum californicum | |||
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California knotweed
native
Annual herb |
 © 2015 John Doyen CalPhotos (UCB) |
 © 2004 Steve Matson CalPhotos (UCB) |
 © 2015 John Doyen CalPhotos (UCB) |
| Polygonum douglasii | |||
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Douglas' knotweed
native
Annual herb |
 © 2020 Bob Sweatt |
 © 2020 Bob Sweatt |
 © 2016 Judy and Barry Breckling |
| Polygonum fowleri | |||
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Fowler's knotweed
native
Annual herb |
 © 2015 Ryan Batten CalPhotos (UCB) |
 © © 2015 Ryan Batten CalPhotos (UCB) |
 © 2015 Ryan Batten CalPhotos (UCB) |
| Polygonum fowleri ssp. fowleri | |||
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Fowler knotweed
native
Annual herb |
no photo |
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| Polygonum heterosepalum | |||
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Oddsepal knotweed
non-native
Annual, Perennial herb |
no photo |
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| Polygonum hickmanii | |||
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Hickman's knotweed
rare, native
Annual herb |
 © 2006 California Department of Fish and Game CalPhotos (UCB) |
 © 2006 California Department of Fish and Game CalPhotos (UCB) |
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| Polygonum majus | |||
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Large douglas' knotweed
native
Annual herb |
 © 2008 Keir Morse CalPhotos (UCB) |
 © 2008 Keir Morse CalPhotos (UCB) |
 © 2008 Keir Morse CalPhotos (UCB) |
| Polygonum marinense | |||
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Marin knotweed
rare, native
Annual herb |
 © 2013 Robert Sikora CalPhotos (UCB) |
 © 2001 Doreen L. Smith CalPhotos (UCB) |
 © 2014 John Doyen CalPhotos (UCB) |
| Polygonum minimum | |||
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Little mountain knotweed
native
Annual herb |
 © 2009 Neal Kramer CalPhotos (UCB) |
 © 2008 Steve Matson CalPhotos (UCB) |
 © 2020 Bob Sweatt |
| Polygonum multiflorum | |||
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Tuber fleeceflower
non-native
Vine |
 © 2001 CDFA CalPhotos (UCB) |
 © 2001 CDFA CalPhotos (UCB) |
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| Polygonum paronychia | |||
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Dune knotweed
native
Perennial herb |
 © 2020 Melissa Mooney |
 © 2014 James Gonsman |
 © 2017 Adam Chasey |
| Polygonum parryi | |||
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Parry's knotweed
native
Annual herb |
 © 2019 Belinda Lo CalPhotos (UCB) |
 © 2020 Belinda Lo CalPhotos (UCB) |
 © 2019 Dean Wm. Taylor CalPhotos (UCB) |
| Polygonum polygaloides | |||
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Milkwort knotweed
native
Annual herb |
 © 2009 Keir Morse CalPhotos (UCB) |
 © 2008 Keir Morse CalPhotos (UCB) |
 © 2006 Debra Valov CalPhotos (UCB) |
| Polygonum polygaloides ssp. confertiflorum | |||
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Dense knotweed
native
Annual herb |
 © 2008 Keir Morse CalPhotos (UCB) |
© 2008 Keir Morse CalPhotos (UCB) |
 © 2011 Barry Breckling CalPhotos (UCB) |
| Polygonum polygaloides ssp. esotericum | also called Polygonum esotericum | ||
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Modoc county knotweed
rare, native
Annual herb |
 © 2013 Jake Ruygt CalPhotos (UCB) |
 © 2000 Robert E. Preston, Ph.D. CalPhotos (UCB) |
 © 2013 Jake Ruygt CalPhotos (UCB) |
| Polygonum polygaloides ssp. kelloggii | |||
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Kellogg's knotweed
native
Annual herb |
 © 2010 Steve Matson CalPhotos (UCB) |
 © 2019 Chico Hiking Association |
© 2009 Keir Morse CalPhotos (UCB) |
| Polygonum ramosissimum | |||
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Yellow knotweed
non-native
Annual herb |
 © 2015 Daniel Boone CalPhotos (UCB) |
 © 2015 Daniel Boone CalPhotos (UCB) |
 © 2015 Daniel Boone CalPhotos (UCB) |
| Polygonum ramosissimum ssp. prolificum | |||
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Bushy knotweed
non-native
Annual herb |
no photo |
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| Polygonum ramosissimum ssp. ramosissimum | |||
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Yellow knotweed
native
Annual herb |
no photo |
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| Polygonum sawatchense | |||
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Knotweed
native
Annual herb |
 © 2009 Barry Breckling CalPhotos (UCB) |
 © 2012 Dean Wm. Taylor. Ph. D. CalPhotos (UCB) |
 © 2009 Barry Breckling CalPhotos (UCB) |
| Polygonum sawatchense ssp. oblivium | |||
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Knotweed
native
Annual, Perennial herb |
© 2012 Dean Wm. Taylor. Ph. D. CalPhotos (UCB) |
 © 2019 Neal Kramer CalPhotos (UCB) |
© 2009 Barry Breckling CalPhotos (UCB) |
| Polygonum sawatchense ssp. sawatchense | also called Polygonum douglasii ssp. johnstonii | ||
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Knotweed
native
Annual, Perennial herb |
© 2009 Barry Breckling CalPhotos (UCB) |
 © 2019 Susan McDougall |
© 2009 Barry Breckling CalPhotos (UCB) |
| Polygonum shastense | |||
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Shasta knotweed
native
Perennial herb |
 © 2020 Donald Burk |
 © 2020 Bob Sweatt |
 © 2020 Donald Burk |
| Polygonum spergulariiforme | |||
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Spurry knotweed
native
Annual herb |
 © 2008 Sierra Pacific Industries CalPhotos (UCB) |
 © 2008 Sierra Pacific Industries CalPhotos (UCB) |
 © 2008 Sierra Pacific Industries CalPhotos (UCB) |
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