Silver-sheath knotweed
(Persian knotweed)

Polygonum argyrocoleon

Laguna Cyn. Rd, at Canyon Club, 5-23-18. © Ron Vanderhoff

Exotic species, native to Siberia, western China, Central Asia, and the Middle East.

Back to Polygonaceae of Orange County, California
Back to Plants of Orange County, California
Back to Natural History of Orange County, California