barberry, dandelion, fleabane, groundsel, toadflax, larkspur, fireweed, bee balm, mallow, goldenrods, chickweed, milkweed, swamp milkweed, mullein, cotoneaster, coreopsis, bull thistle, alyssum, bellflower, cow parsnip, buttercup, nepeta, oxalis, pampas grass, knapweed, snowberry, bindweed, phlox, clover, bottlebrush, trumpet creeper, trilliums, leafy spurge, butterfly bush, multiflora rose, hawkweed, creeping jenny, euonymus, spiderwort, yarrow, aster, pondweed, goutweed, serviceberry, hellebore, portulaca, oxeye daisy, marsh marigold, tansy, jonquils, cowslip, ironweed, honeysuckles, cleome, coneflower, staghorn sumac, lantana, gentian, meadow rue, henbit, vinca minor, cinquefoil, celandine, purple loosestrife, trumpet honeysuckle, kochia, wood sorrel, crown vetch, hawthorn, bluestem, winterberry, canadensis, tradescantia, fritillary, pokeweed, hackberry, bunchberry, highbush cranberry, euonymous, nasturtium, foxglove, asclepias, crabapple, vetch, sunflowers, andromeda, stinging nettle, loosestrife, bridal wreath, monarda, chokecherry, balsamroot, aucuba, primrose, allium, catalpa, rugosa, lupine, viburnum, ceanothus, foxtail, delphinium, thistles, poppy, lily, creeper, cactus, poplar, vine, chestnut, birch, broom, fir, geraniums, maple, pear, poppies, willow, acacia, bamboo, nettle, daisy, daffodil, fern, lotus, tulip, turnip, weed, bramble, grass, withered, bean, bulrush, flax

blessed thistle, carduus crispus, carduus nutans, carline thistle, cirsium discolor, cirsium helenioides, cirsium heterophylum, cnicus benedictus, cotton thistle, field thistle, golden thistle, melancholy thistle, musk thistle, nodding thistle, onopordon acanthium, onopordum acanthium, plumed thistle, plume thistle, scotch thistle, sweet sultan, welted thistle, woolly thistle

., artichoke, asteraceae, aster family, blessed thistle, boar thistle, bull thistle, canada thistle, carlina vulgaris, carline thistle, centaurea, cirsium arvense, cirsium discolor, cirsium eriophorum, cirsium flodmanii, cirsium helenioides, cirsium heterophylum, cirsium lanceolatum, cirsium vulgare, cnicus, common carline thistle, compositae, cotton thistle, creeping thistle, european woolly thistle, family asteraceae, family compositae, field thistle, genus centaurea, genus cnicus, globe artichoke, holy thistle, lady's thistle, melancholy thistle, milkweed, milk thistle, onopordon acanthium, onopordum acanthium, our lady's mild thistle, scolymus hispanicus, scotch thistle, silybum marianum, sonchus oleraceus, spanish oyster plant, spear thistle, thistledown, thistlelike, woolly thistle