whitetop, arundo, pondweed, toadflax, tansy ragwort, smartweed, kochia, bunchgrass, bull thistle, cocklebur, creosote bush, orange hawkweed, asclepias, swallow wort, snowberry, hoary cress, pickerel weed, hackberries, crown vetch, bitterbrush, festuca, bladderwort, ironweed, johnsongrass, brome grass, hawkweed, oxalis, butternuts, sword fern, weeds, pokeweed, bush honeysuckle, musk thistle, thistles, sweet clover, sumacs, globe mallow, marsh marigold, rhizomatous, teasel, oriental bittersweet, budworm, bedstraw, phalaris, siberian elm, ceanothus, pampas grass, mullein, spurge, swamp milkweed, quack grass, toyon, spatterdock, bellflower, velvetleaf, coontie, elodea, prosopis juliflora, webworm, oxeye daisy, goutweed, greasewood, clarkia, crested wheatgrass, ligustrum, port orford cedar, groundsel, fleabane, silky dogwood, leafminer, spartina, tussock grass, arctostaphylos, henbit, armillaria, meadowsweet, brittlebush, foxtail, tamarisk, lespedeza, sansevieria, waterweed, fireweed, buttonwood, chinkapin, scotch broom, downy brome, reed canary grass, paperbark, cutworm, red osier dogwood, nutlets, tagetes, lehua, highbush cranberry, poison hemlock, eupatorium, cinquefoil, buttonbush, phacelia, crimson clover, prunus

thistle

cotton thistle, onopordon acanthium, onopordum acanthium, woolly thistle