Church, J SE Santa Ana Cy. Rd. at Hwy. 241, 7-10-16. © Ron Vanderhoff

Rough Horsetail
(Scouring Rush, Scouringrush Horsetail)

Equisetum hyemale

Native plant to North America, Europe, and northern Asia.

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San Diego Creek Channel, Main St., Irvine, 7-8-12. © Ron Vanderhoff