chickweed, toadflax, dandelions, weeds, honeysuckles, henbit, goutweed, barberry, bindweed, vetch, fleabane, snowberry, multiflora rose, creeping buttercup, fireweed, bracken, foxgloves, sumacs, pampas grass, hollyhocks, sword fern, nepeta, bull thistle, liriope, pyracantha, highbush cranberry, cranesbill, bee balm, potentilla, ragwort, marsh marigold, cotoneaster, groundsel, sow thistle, oxalis, hoary cress, cutworms, vinca minor, foxtails, pussy willow, euonymous, celandine, buddleia, berberis, crabapple, hawkweed, cocklebur, oriental bittersweet, goldenrods, monarda, pondweed, musk thistle, serviceberries, blackthorn, santolina, phlox, salmonberry, mullein, eupatorium, pokeweed, nettles, oxeye daisy, creeping thyme, butterfly bush, creeping charlie, leafy spurge, scotch thistle, daphne, viburnums, nutgrass, trumpet vine, purslane, mulberries, swallow wort, bulbils, wood sorrel, alpines, cowslips, narcissi, crimson clover, clethra, smartweed, teasel, spurge, crab apple, briar, skunk cabbage, ligustrum, swamp milkweed, buckthorn, asclepias, kochia, evening primrose, clematis, creeping jenny, seedpods, lupines, scabious, baptisia, greenfly, trilliums, jonquils, thistle, cactus, thorns, birches, chrysanthemums, pines, poppies, sunflowers, brambles, cabbages, geraniums, reeds, willows, bamboos, cacti, daisies, ferns, irises, mosses

carduus, carlina, cirsium, echinops, genus carduus, genus carlina, genus cirsium, genus echinops, genus sonchus, pappose, pappus, sonchus