poison ivy, poison sumac, chiggers, cow parsnip, manzanita, foxtails, wild parsnip, jewelweed, pokeweed, hogweed, powdery mildew, webworms, cholla, tansy, pachysandra, briar, urushiol, weeds, creosote bush, leafminer, stinging nettle, root rot, sword fern, junipers, sumacs, knotweed, leaf scorch, henbit, dandelions, liriope, toadflax, tomato hornworm, brambles, blackberry bush, gopher snake, tansy ragwort, bush honeysuckle, pyracantha, photinia, paloverde, folliculitis, windburn, mullein, juglone, mountain laurel, red osier dogwood, euonymous, oriental bittersweet, pinworms, hackberry, briers, oxalis, honeysuckles, sunburn, bayberry, myrtle spurge, nutgrass, poison hemlock, highbush cranberry, repens, thistles, insect repellant, silky dogwood, cutworm, horsetail, multiflora rose, hawkweed, blackfly, oleander, rocky mountain spotted fever, scotch broom, skunk cabbage, verruca, deciduous holly, lyme grass, crown vetch, aucuba, sunscald, chickweed, deadly nightshade, bearberry, ceanothus, goldenrods, bridal wreath, shrubby, pittosporum, chinch bug, reed canary grass, nightshade, croton, mojave rattlesnake, ocotillo, chlorosis, yaupon, teasel, fall webworm, bindweed, pigweed, bunchgrass, catmint, daphne, milk vetch

poisonous plant

markweed, poison ivy, poison mercury, rhus radicans, toxicodendron radicans