Invasive Exotic Plants of Ventura & Santa Barbara Counties - Page 1

Created 22 May 2005
Updated 18 August 2011

There are many (way too many) invasive exotic plants (weeds) growing out of control in the region covered by the Channels Islands Chapter (Ventura County and southeastern Santa Barbara County).   As of this date, there are 487 non-native taxa known from Ventura County.   Some of these nonnative plants have been here for a couple of hundred years now, while others are recent invaders (within the last 10 years).   The photos below show just some of the plants that are bad actors in our native habitats.   If you find any of them, please feel free to pull them up.

All photos copyrighted by David L. Magney 2005-2010 unless otherwise indicated

Plant photos are arranged alphabetically by botanical name.

Ailanthus altissima, Tree-of-Heaven - Simaroubaceae (Quassia family)

Araujia sericifera, Bladderflower Vine - Asclepidaceae (Milkweed family)

Carduus pycnocephalus, Italian Thistle - Asteraceae (Sunflower family - Thistle tribe)

Cortedaria jubata, Pampas Grass - Poaceae (Grass family)

Euphorbia terracina var. terracina, Cape Spurge or False Caper - Euphorbiaceae (Euphorb family)

Foeniculum vulgare, Sweet Fennel - Apiaceae (Carrot family)

Hirschfeldia incana, Summar Mustard - Brassicaceae (Mustard family)

Ipomoea learii, Purple Morning-glory - Convolvulaceae (Morning-glory family)

Melilotus indica, Yellow Sweetclover - Fabaceae (Pea family)

Myoporus laetum, Myoporum - Myoporaceae (Myoporum family) or Myrtaceae (Myrtle family)

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