Calflora
33 matching records.
Searching for: genus: Polygonum
Click on the Scientific Name to see a Taxon Report.
Polygonum argyrocoleon
Silver sheath knotweed
non-native
Annual herb
Polygonum argyrocoleon
© 2011 Steve Matson
Polygonum argyrocoleon
© 2011 Steve Matson
Polygonum argyrocoleon
© 2011 Steve Matson
Polygonum austiniae formerly Polygonum douglasii ssp. austiniae
Rebecca austin's knotweed
native
Annual herb
no photo
Polygonum aviculare
Prostrate knotweed
non-native
Annual, Perennial herb
Polygonum aviculare
© 2008 Keir Morse
Polygonum aviculare
© 2012 Aaron Arthur
Polygonum aviculare
© 2015 Phil Pullen
Polygonum aviculare ssp. aviculare
Prostrate knotweed
non-native
Annual, Perennial herb
Polygonum aviculare ssp. aviculare
© 2006 Adonis (Don) Tate
Polygonum aviculare ssp. aviculare
© 2006 Adonis (Don) Tate
Polygonum aviculare ssp. aviculare
© 2006 Adonis (Don) Tate
Polygonum aviculare ssp. buxiforme
Prostrate knotweed
non-native
Annual, Perennial herb
no photo
Polygonum aviculare ssp. depressum formerly Polygonum arenastrum
Prostrate knotweed
non-native
Annual, Perennial herb
Polygonum aviculare ssp. depressum
© 2009 Barry Breckling
Polygonum aviculare ssp. depressum
© 2011 Jorg & Mimi Fleige
Polygonum aviculare ssp. depressum
© 2008 Neal Kramer
Polygonum aviculare ssp. neglectum
Prostrate knotweed
non-native
Annual, Perennial herb
no photo
Polygonum aviculare ssp. rurivagum
Prostrate knotweed
non-native
Annual, Perennial herb
Polygonum aviculare ssp. rurivagum
© 2008 Doreen L. Smith
Polygonum bidwelliae
Bidwell's knotweed
rare, native
Annual herb
Polygonum bidwelliae
© 2010 George W. Hartwell
Polygonum bidwelliae
© 2010 George W. Hartwell
Polygonum bolanderi
Bolander's polygonum
native
Perennial herb
Polygonum bolanderi
© 2008 John Dittes
Polygonum bolanderi
© 2008 John Dittes
Polygonum bolanderi
© 2015 Dana York
Polygonum californicum
California knotweed
native
Annual herb
Polygonum californicum
© 2015 John Doyen
Polygonum californicum
© 2004 Steve Matson
Polygonum californicum
© 2015 John Doyen
Polygonum douglasii
Douglas' knotweed
native
Annual herb
Polygonum douglasii
© 2009 Barry Breckling
Polygonum douglasii
© 2003 Michael Charters
Polygonum douglasii
© 2012 Jean Pawek
Polygonum fowleri
Fowler's knotweed
native
Annual herb
Polygonum fowleri
© 2015 Ryan Batten
Polygonum fowleri
© © 2015 Ryan Batten
Polygonum fowleri
© 2015 Ryan Batten
Polygonum fowleri ssp. fowleri
Fowler knotweed
native
Annual herb
no photo
Polygonum hickmanii
Hickman's knotweed
rare, native
Annual herb
Polygonum hickmanii
© 2006 California Department of Fish and Game
Polygonum hickmanii
© 2006 California Department of Fish and Game
Polygonum majus formerly Polygonum douglasii ssp. majus
Large douglas' knotweed
native
Annual herb
Polygonum majus
© 2008 Keir Morse
Polygonum majus
© 2008 Keir Morse
Polygonum majus
© 2008 Keir Morse
Polygonum marinense
Marin knotweed
rare, native
Annual herb
Polygonum marinense
© 2013 Robert Sikora
Polygonum marinense
© 2001 Doreen L. Smith
Polygonum marinense
© 2014 John Doyen
Polygonum minimum
Little mountain knotweed
native
Annual herb
Polygonum minimum
© 2009 Neal Kramer
Polygonum minimum
© 2008 Steve Matson
Polygonum minimum
© 2011 Steve Matson
Polygonum multiflorum
Tuber fleeceflower
non-native
Vine
Polygonum multiflorum
© 2001 CDFA
Polygonum multiflorum
© 2001 CDFA
Polygonum paronychia
Dune knotweed
native
Perennial herb
Polygonum paronychia
© 2007 Steve Matson
Polygonum paronychia
© 2012 Robert Steers/NPS
Polygonum paronychia
© 2009 Thomas Stoughton
Polygonum parryi
Parry's knotweed
native
Annual herb
Polygonum parryi
© 1998 Dean Wm. Taylor
Polygonum parryi
© 2018 Jake Ruygt
Polygonum polygaloides
Milkwort knotweed
native
Annual herb
Polygonum polygaloides
© 2009 Keir Morse
Polygonum polygaloides
© 2008 Keir Morse
Polygonum polygaloides
© 2006 Debra Valov
Polygonum polygaloides ssp. confertiflorum
Dense knotweed
native
Annual herb
Polygonum polygaloides ssp. confertiflorum
© 2008 Keir Morse
Polygonum polygaloides ssp. confertiflorum
© 2008 Keir Morse
Polygonum polygaloides ssp. confertiflorum
© 2011 Barry Breckling
Polygonum polygaloides ssp. esotericum
Modoc county knotweed
rare, native
Annual herb
Polygonum polygaloides ssp. esotericum
© 2013 Jake Ruygt
Polygonum polygaloides ssp. esotericum
© 2000 Robert E. Preston, Ph.D.
Polygonum polygaloides ssp. esotericum
© 2013 Jake Ruygt
Polygonum polygaloides ssp. kelloggii
Kellogg's knotweed
native
Annual herb
Polygonum polygaloides ssp. kelloggii
© 2010 Steve Matson
Polygonum polygaloides ssp. kelloggii
© 2009 Keir Morse
Polygonum polygaloides ssp. kelloggii
© 2009 Keir Morse
Polygonum ramosissimum
Yellow knotweed
non-native
Annual herb
Polygonum ramosissimum
© 2015 Daniel Boone
Polygonum ramosissimum
© 2015 Daniel Boone
Polygonum ramosissimum
© 2015 Daniel Boone
Polygonum ramosissimum ssp. prolificum formerly Polygonum prolificum
Bushy knotweed
non-native
Annual herb
no photo
Polygonum ramosissimum ssp. ramosissimum
Yellow knotweed
native
Annual herb
no photo
Polygonum sawatchense
Knotweed
native
Annual herb
Polygonum sawatchense
© 2009 Barry Breckling
Polygonum sawatchense
© 2012 Dean Wm. Taylor. Ph. D.
Polygonum sawatchense
© 2009 Barry Breckling
Polygonum sawatchense ssp. oblivium
Knotweed
native
Annual, Perennial herb
Polygonum sawatchense ssp. oblivium
© 2012 Dean Wm. Taylor. Ph. D.
Polygonum sawatchense ssp. sawatchense
 
native
Annual, Perennial herb
Polygonum sawatchense ssp. sawatchense
© 2009 Barry Breckling
Polygonum sawatchense ssp. sawatchense
© 2009 Barry Breckling
Polygonum shastense
Shasta knotweed
native
Perennial herb
Polygonum shastense
© 2003 Penn Martin II
Polygonum shastense
© 2010 Keir Morse
Polygonum shastense
© 2010 Keir Morse
Polygonum spergulariiforme formerly Polygonum douglasii ssp. spergulariiforme
Spurry knotweed
native
Annual herb
Polygonum spergulariiforme
© 2008 Sierra Pacific Industries
Polygonum spergulariiforme
© 2008 Sierra Pacific Industries
Polygonum spergulariiforme
© 2008 Sierra Pacific Industries
    Suggested Citation
    Calflora: Information on California plants for education, research and conservation. [web application]. 2018. Berkeley, California:
    The Calflora Database [a non-profit organization].
    Available: http://www.calflora.org/   (Accessed: Apr 20, 2018).

    The information on this page comes from diverse sources. None of the links are sponsored.

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