Polygonum bidwelliae Bidwell's Knotweed ID: 0000 0000 0801 0474 [detail] © 1988 Dean Wm. Taylor	Polygonum bidwelliae Bidwell's Knotweed ID: 0000 0000 0702 0561 [detail] © 2002 Kristiaan Stuart	Polygonum bidwelliae Bidwell's Knotweed ID: 0000 0000 0104 1266 [detail] © 2004 Robert E. Preston, Ph.D.	Polygonum bidwelliae Bidwell's Knotweed ID: 0000 0000 0702 0562 [detail] © 2002 Kristiaan Stuart
Polygonum bidwelliae ID: 0000 0000 1007 0887 [detail] © 2007 George W. Hartwell	Polygonum bidwelliae ID: 0000 0000 1007 0888 [detail] © 2007 George W. Hartwell	Polygonum bidwelliae ID: 0000 0000 1007 0889 [detail] © 2007 George W. Hartwell	Polygonum bidwelliae ID: 0000 0000 1007 0890 [detail] © 2007 George W. Hartwell
Polygonum bidwelliae Bidwell's Knotweed ID: 0000 0000 1108 1289 [detail] © 2008 John Dittes	Polygonum bidwelliae ID: 0000 0000 0610 2012 [detail] © 2010 George W. Hartwell	Polygonum bidwelliae ID: 0000 0000 0610 2016 [detail] © 2010 George W. Hartwell	Polygonum bidwelliae ID: 0000 0000 0610 2018 [detail] © 2010 George W. Hartwell
Polygonum bidwelliae ID: 0000 0000 0610 2019 [detail] © 2010 George W. Hartwell	Polygonum bidwelliae ID: 0000 0000 0610 2020 [detail] © 2010 George W. Hartwell	Polygonum bidwelliae ID: 0000 0000 1211 0881 [detail] © 2011 Steve Matson	Polygonum bidwelliae ID: 0000 0000 1211 0882 [detail] © 2011 Steve Matson
Polygonum bidwelliae ID: 0000 0000 1211 0883 [detail] © 2011 Steve Matson	Polygonum bidwelliae ID: 0000 0000 1211 0884 [detail] © 2011 Steve Matson	Polygonum bidwelliae Bidwell's Knotweed ID: 0000 0000 0518 0767 [detail] © 2018 Evan D. MacKinnon	Polygonum bidwelliae Bidwell's Knotweed ID: 0000 0000 1220 0307 [detail] © 2020 Neal Kramer
Polygonum bidwelliae Bidwell's Knotweed ID: 0000 0000 1220 0309 [detail] © 2020 Neal Kramer	Polygonum bidwelliae Bidwell's Knotweed ID: 0000 0000 1220 0310 [detail] © 2020 Neal Kramer	Polygonum bidwelliae Bidwell's Knotweed ID: 0000 0000 1220 0311 [detail] © 2020 Neal Kramer	Polygonum bidwelliae Bidwell's Knotweed ID: 0000 0000 1220 0312 [detail] © 2020 Neal Kramer

Using these photos: A variety of organizations and individuals have contributed photographs to CalPhotos. Please follow the usage guidelines provided with each image. Use and copyright information, as well as other details about the photo such as the date and the location, are available by clicking on the [detail] link under the thumbnail. See also: Using the Photos in CalPhotos.