Invasive Plants

Poison Oak

Toxicodendron diversilobum

Prickly Sow Thistle

Sonchus asper

Purple Salsify

Tragopogon porrifolius

Red Larkspur, Scarlet Larkspur

Delphinium nudicaule

Red Sand-spurry

Spergularia rubra

Redstem Filaree

Erodium cicutarium

Rose Clover

Trifolium hirtum

Rosy Sandcrocus

Romulea rosea

Russian Thistle

Salsola tragus

Shepherd's Needle

Scandix pecten-veneris

Shepherd's Purse

Capsella bursa-pastoris

Spearmint

Mentha spicata