NB City Hall Park, 4-2-14. © Ron Vanderhoff.

Devil's Thorn

Emex spinosa

Exotic species on the list of prime candidates for Early Detection and Rapid Response action. (California Native Plant Society, Orange County Chapter)

Back to Polygonaceae of Orange County, California
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NB City Hall Park, 4-2-14. © Ron Vanderhoff.

NB City Hall Park, 4-2-14. © Ron Vanderhoff.

Top of the World toward Big Bend, Laguna Beach, 12-17-15. © Ron Vanderhoff.

Top of the World toward Big Bend, Laguna Beach, 12-17-15. © Ron Vanderhoff.

Top of the World toward Big Bend, Laguna Beach, 12-17-15. © Ron Vanderhoff.