annual, biennial, one-year, scouring, two-year

peskiest, hyacinth bean, perpetual, bona fide, creeping buttercup, prickly, shrublike, bonafide, scabiosa, intermediate wheatgrass, helleborus, ixora, hoary cress, bottlebrush, vanquished, oxalis, rhizomatous, sweet alyssum, nasturtium, nepeta, dianthus, longtime, cypress vine, nemesia, highbush cranberry, sword fern, cornus florida, magnolia grandiflora, resurgent, swamp milkweed, daisylike, biggest, baptisia australis, leatherleaf, tuberous, persistent, unquestioned, ipomoea batatas, kookiest, saucer magnolia, trumpet honeysuckle, du jour, inveterate, veritable, siberian elm, vexing, mighty, bottlebrush buckeye, oxeye daisy, wax begonia, arum lily, bearded iris, euphorbia pulcherrima, delphinium, cowslip, intersectional, thornless, thorny, agapanthus, dwarf iris, dusty miller, coreopsis, formidable, showiest, digitalis purpurea, lone, euonymus, homegrown, main, winter aconite, insolvable, kalmia latifolia, wax myrtle, orange hawkweed, crepe myrtle, floriferous, pasque flower, regular, favorite, hardiest, bull thistle, legitimate, dynastic, ostensible, vinca, haughtiest, acer saccharum, prosopis juliflora, grape hyacinth, trumpet creeper, japanese barberry, swallow wort, withered, pesty, amelanchier, tuberous begonia, cymbidium, bromeliad, dilly, steadiest, obvious, surefire, perennials, shrub, annuals, evergreen, herb, shrubs, vine, vines, evergreens, grasses, rootstock, climber, creeper, biennial, fern, legume, plant, plants, sedges, conifer, weedy, herbaceous, leguminous, neverending, ornamental, longstanding, persisting, succulent, unending, continuing, deciduous, dioecious, pressing, recurring, rooting, unresolved

button snakeroot, eryngium yuccifolium, rattlesnake's master, rattlesnake master

., aconitum lycoctonum, acorus calamus, actaea rubra, actinomeris alternifolia, adonis, aeonium haworthii, african love grass, agastache mexicana, agastache nepetoides, ageratina, agrimonia eupatoria, agrimonia procera, agropyron, agrostis, agueweed, ajuga genevensis, ajuga pyramidalis, aldrovanda vesiculosa, alecost, aleppa grass, alismataceae, alkanet, allegheny mountain spurge, allegheny spurge, allium, allium ampeloprasum, allium cepa viviparum, allium schoenoprasum, allium tricoccum, alopecurus, alopecurus pratensis, alpine milk vetch, alpinia, alpinia galanga, alpinia officinalis, alpinia officinarum, alsobia dianthiflora, althea officinalis, ambrosia psilostachya, american columbo, american feverfew, american gentian, american pasqueflower, american pulsatilla, american spikenard, american star grass, american watercress, anchusa officinalis, andropogon, anemone ludoviciana, anemone pulsatilla, antennaria, antennaria dioica, antennaria plantaginifolia, anthemis tinctoria, anthericum, anthyllis vulneraria, antirrhinum majus, aphyllanthes, apios, apocynum, apocynum androsaemifolium, arabis, aralia nudicaulis, aralia racemosa, arctic poppy, arctotis stoechadifolia, arctotis venusta, arenaria caroliniana, arenaria peploides, arenaria stricta, argyranthemum frutescens, arisarum, arisarum vulgare, arnica, arrhenatherum elatius, arrowleaf groundsel, arrowroot family, arrow grass, artemisia cana, artemisia dracunculus, artemisia frigida, artemisia gnaphalodes, artemisia ludoviciana, artemisia vulgaris, artemis spinescens, arundo, arundo donax, asarum canadense, asarum virginicum, asclepias, asclepias incarnata, asclepias purpurascens, asclepias tuberosa, asperula odorata, asperula tinctoria, asphodeline, aspidistra, aspidistra elatio, aster acuminatus, aster arenosus, aster cordifolius, aster divaricatus, aster dumosus, aster ericoides, aster falcatus, aster linarifolius, aster linosyris, aster macrophyllus, aster novae-angliae, aster novi-belgii, aster ptarmicoides, aster shortii, aster turbinellis, astragalus, astragalus alpinus, astragalus danicus, astragalus glycyphyllos, atropa belladonna, aureolaria virginica, australian pitcher plant, autumn sneezeweed, avalanche lily, awnless bromegrass, bahia grass, balloon vine, ballota, balsam herb, bar-room plant, barbarea, barberton daisy, basil, basil balm, basil mint, beach aster, beach morning glory, bean caper, beebalm, beetleweed, bee balm, belladonna, bergamot mint, bible leaf, bird-on-the-wing, bird vetch, bishop's cap, bittersweet, bittersweet nightshade, bitter betch, black hellebore, black knapweed, black pea, black salsify, black snakeroot, bladderpod, bladder campion, bladder cherry, blandfordia, bloodroot, bloomeria, blue-eyed african daisy, bluebell, blue bugle, blue cardinal flower, blue poppy, blue tulip, boehmeria nivea, bogbean, bog myrtle, boltonia, bonavist, boneset, borago, bowiea, boykinia, breadroot, broad-leaved everlasting pea, broad-leaved plantain, bromus inermis, buckbean, bud brush, bud sagebrush, buffalo gourd, buffel grass, bugle, bugleweed, bugloss, bunchberry, buphthalmum salicifolium, burning bush, bush, bushy aster, butter-and-eggs, butterfly weed, button snakeroot, caesalpiniaceae, calabazilla, calamint, calamintha nepeta, calamintha nepeta glantulosa, calamintha sylvatica, calamus, calathian violet, callirhoe digitata, callirhoe involucrata, callirhoe triangulata, calnada pea, calochortus nuttallii, campanula americana, campanula carpatica, campanula persicifolia, campanula rotundifolia, canada ginger, canada violet, cardamine douglasii, cardamine rotundifolia, cardiospermum halicacabum, carduus, carduus nutans, carlina acaulis, carrot, cart-track plant, cassia marilandica, cast-iron plant, cat's feet, cat's foot, catchfly, catgut, catharanthus, catmint, catnip, cattail family, caudex, celandine, celandine poppy, celosia, cenchrus ciliaris, centaurea imperialis, centaurea nigra, centaurea scabiosa, centaurium scilloides, cephalotus follicularis, cerastium arvense, chafeweed, chamois cress, charity, checkerbloom, cheddar pink, cheese, cheeseflower, cheiranthus, cheiranthus allionii, cheiranthus asperus, cheiranthus cheiri, chelidonium majus, chelone glabra, chicory, chicory plant, chiggerflower, chigger flower, china fleece vine, china grass, chincherinchee, chinese lantern plant, chinese silk plant, chive, chives, chloris, chloris gayana, chloris truncata, chocolate root, chrysanthemum, chrysanthemum balsamita, chrysanthemum coccineum, chrysanthemum frutescens, chrysanthemum lacustre, chrysanthemum leucanthemum, chrysanthemum parthenium, chrysanthemum ptarmiciflorum, chrysopsis mariana, chrysopsis villosa, cichorium intybus, cicuta, cicuta verosa, cimicifuga, cineraria maritima, cirsium helenioides, cirsium heterophylum, cive, claytonia virginica, cleome pinnata, clianthus formosus, clianthus speciosus, climbing lily, climbing nightshade, clustered poppy mallow, cnidoscolus, colchicum, coleus blumei, collinsonia, collinsonia canadensis, colocasia, coltsfoot, columbo, comfrey, commelinaceae, common basil, common buttercup, common calamint, common dogbane, common foxglove, common lettuce, common milkwort, common morning glory, common mugwort, common pitcher plant, common plantain, common speedwell, common thyme, common vetchling, common watercress, convallaria majalis, convolvulus arvensis, coptis, coptis groenlandica, coptis trifolia groenlandica, coralbells, coral gem, cordgrass, cord grass, corkscrew flower, cornflower aster, cornus, cornus canadensis, cortaderia selloana, corydalis, costmary, crackerberry, crambe, crambe maritima, creeping buttercup, creeping crowfoot, creeping lily, creeping soft grass, creeping windmill grass, crocanthemum canadensei, cuckoo flower, cucurbita foetidissima, cudweed, cultivated carrot, culver's physic, culver's root, culvers physic, culvers root, cumfrey, curcuma, curlycup gumweed, cynodon, cynodon plectostachyum, cynoglossum virginaticum, cyperus rotundus, cypress spurge, cypripedium, cystopteris, dallisgrass, dallis grass, darmera peltata, daucus carota sativa, deadly nightshade, dead nettle, deer's-ear, deer's-ears, dense blazing star, desert pea, desert plume, desmanthus ilinoensis, devil's flax, devil lily, diangus gratianopolitanus, dianthus supurbus, dichondra, dichondra micrantha, dictamnus alba, dieffenbachia, digitalis purpurea, dipladenia, dittany, dog's-tooth violet, dog's mercury, dogbane, dogtooth, dogtooth violet, dog mercury, dolichos lablab, doronicum, drosophyllum lusitanicum, drypis, dusty miller, dutch case-knife bean, dwarf-white trillium, dwarf cornel, dwarf phlox, dyer's woodruff, dyers' chamomile, early wake-robin, eastern pasque flower, echinacea, echinochloa, edelweiss, egyptian bean, egyptian onion, elephantopus, eleusine, elymus, elymus condensatus, enchanter's nightshade, engelmannia, english ryegrass, epilobium angustifolium, episcia dianthiflora, eragrostis, eragrostis curvula, eranthis hyemalis, erect bugle, erigeron, erigeron glaucous, erigeron pulchellus, eriocaulon aquaticum, eriogonum allenii, eriophyllum lanatum, eruca, eryngium aquaticum, eryngium yuccifolium, erysimum, erysimum allionii, erysimum arkansanum, erysimum asperum, erysimum cheiri, erythronium, erythronium montanum, esparcet, estragon, eubryales, eupatorium perfoliatum, euphorbia amygdaloides, euphorbia caput-medusae, euphorbia corollata, euphorbia cyparissias, euphorbia esula, euphorbia medusae, european pasqueflower, evergreen grass, evergreen millet, everlasting pea, exacum affine, explorer's gentian, fair-maids-of-france, fairy bell, fairy circle, fairy ring, false bugbane, false foxglove, false gromwell, false hellebore, false oat, false rue, false rue anemone, false sarsaparilla, family alismataceae, family caesalpiniaceae, family commelinaceae, family hydrophyllaceae, family iridaceae, family marantaceae, family orchidaceae, family paeoniaceae, family plumbaginaceae, family saururaceae, family typhaceae, feabane mullet, festuca, feverfew, feverroot, field balm, field bindweed, field chickweed, field mouse-ear, field scabious, finger-flower, finger-root, fingerflower, fingerroot, fireweed, fire pink, flagroot, flat pea, fleabane, flowering spurge, flowering tobacco, flowering wintergreen, foetid pothos, fomes, forget-me-not, fountain grass, fragrant agrimony, fragrant bedstraw, francoa, fraxinella, french honeysuckle, french rye, french sorrel, friar's-cowl, fringed pink, fringed polygala, fringed poppy mallow, frost-weed, frostweed, frostwort, funka, galangal, galax, galaxy, galax urceolata, galega officinalis, galium, galium boreale, galium odoratum, galium verum, gall of the earth, gand flower, gardener's garters, garden balm, garden forget-me-not, garden lettuce, garden sorrel, garget, gas plant, gaywings, gazania rigens, gentiana calycosa, gentiana lutea, gentiana pneumonanthe, gentiana saponaria, gentiana villosa, genus achillea, genus achimenes, genus adonis, genus ageratina, genus agropyron, genus agrostis, genus allium, genus alopecurus, genus alpinia, genus andropogon, genus anemone, genus angelica, genus antennaria, genus anthericum, genus aphyllanthes, genus apios, genus apocynum, genus arabis, genus arisarum, genus arum, genus arundo, genus asclepias, genus asparagus, genus asphodeline, genus astragalus, genus ballota, genus barbarea, genus bergenia, genus blandfordia, genus bloomeria, genus boltonia, genus borago, genus bowiea, genus boykinia, genus bryonia, genus canna, genus capsicum, genus carduus, genus catharanthus, genus celosia, genus cheiranthus, genus chloris, genus cicuta, genus cimicifuga, genus cleome, genus cnidoscolus, genus colchicum, genus collinsonia, genus colocasia, genus coptis, genus cornus, genus corydalis, genus crambe, genus curcuma, genus cynancum, genus cynodon, genus cypripedium, genus cystopteris, genus dahlia, genus delphinium, genus dichondra, genus dieffenbachia, genus dipladenia, genus doronicum, genus echinacea, genus echinochloa, genus elephantopus, genus eleusine, genus elymus, genus eragrostis, genus erigeron, genus eruca, genus erysimum, genus erythronium, genus festuca, genus fomes, genus francoa, genus freesia, genus funka, genus galium, genus gerardia, genus glycyrrhiza, genus gutierrezia, genus haplopappus, genus helianthus, genus hemerocallis, genus hepatica, genus hesperis, genus hieracium, genus homogyne, genus hordeum, genus hosta, genus humulus, genus hyacinthoides, genus hydrastis, genus hyssopus, genus iliamna, genus impatiens, genus isatis, genus isopyrum, genus juncus, genus laminaria, genus languas, genus lepidium, genus liatris, genus lithophragma, genus lithospermum, genus lotus, genus macleaya, genus macrotyloma, genus mandevilla, genus minuartia, genus myrrhis, genus nabalus, genus narcissus, genus nolina, genus onosmodium, genus orthilia, genus ozothamnus, genus pachysandra, genus packera, genus panax, genus paronychia, genus paspalum, genus petrocoptis, genus petunia, genus physostegia, genus pilosella, genus piqueria, genus pleiospilos, genus poa, genus podophyllum, genus polianthes, genus potentilla, genus prenanthes, genus prunella, genus pyrola, genus ranunculus, genus ratibida, genus rivina, genus rorippa, genus rudbeckia, genus saccharum, genus sagina, genus sansevieria, genus saponaria, genus saxifraga, genus scabiosa, genus scirpus, genus scopolia, genus serratula, genus setaria, genus shortia, genus silphium, genus sinningia, genus sisymbrium, genus sium, genus sorghum, genus sparaxis, genus sporobolus, genus spraguea, genus strelitzia, genus teucrium, genus thalictrum, genus tofieldia, genus trapa, genus trautvetteria, genus tribulus, genus triglochin, genus trillium, genus trollius, genus tulipa, genus tussilago, genus uvularia, genus valeriana, genus veratrum, genus vicia, genus wyethia, genus zerumbet, genus zingiber, genus zinnia, geophyte, geranium pratense, gerardia virginica, gerbera jamesonii, geum rivale, geum triflorum, giant buttercup, giant reed, giant ryegrass, giant star grass, giant sunflower, giant willowherb, ginger, girasol, gloriosa, gloriosa superba, glory lily, glycyrrhiza, gnaphalium sylvaticum, goat's rue, goat rue, goldenseal, golden buttons, golden honey plant, golden ironweed, golden marguerite, golden seal, golden thread, golden yarrow, goldilocks, goldilocks aster, goldthread, goose-tansy, goose grass, gravelweed, gray sage, greater celandine, greater knapweed, greater water parsnip, great knapweed, great lobelia, great solomon's-seal, great st john's wort, great yellowcress, great yellow gentian, greek valerian, green arrow arum, grindelia robusta, grindelia squarrosa, gromwell, ground cherry, gutierrezia, gypsyweed, hairy darling pea, hairy golden aster, haplopappus, haplopappus spinulosus, hardheads, hardinggrass, harding grass, harebell, harvest-lice, heal all, heart-leaf, heart-leaved aster, heartleaf, heart pea, heath aster, hedge nettle, hedysarum boreale, hedysarum coronarium, helenium autumnale, helenium hoopesii, helianthemum canadense, helianthemum scoparium, helianthus giganteus, helianthus laetiflorus, helianthus maximilianii, helianthus tuberosus, heliopsis, hellebore, helleborus orientalis, hemerocallis, herb of grace, hesperis, heterotheca villosa, heuchera sanguinea, hibiscus sabdariffa, hieracium, high mallow, hippocrepis comosa, hoary plantain, hoary puccoon, holcus lanatus, holcus mollis, holy clover, homogyne, hordeum, horsemint, horseshoe vetch, horsetail, horseweed, horse balm, horse gentian, hosta, hound's-tongue, hugueninia tanacetifolia, humulus, huntsman's cup, huntsman's cups, husk tomato, hyacinth, hyacinthoides, hyacinth bean, hydrastis, hydrastis canadensis, hydrophyllaceae, hydrophyllum virginianum, hymenoxys acaulis, hypericum ascyron, hypericum maculatum, hypericum perforatum, hypericum pyramidatum, hypericum tetrapterum, hypericum virginianum, hypoxis hirsuta, hyssopus, iceland poppy, iliamna, iliamna acerifolia, iliamna ruvularis, indian arrowroot, indian bean, indian beet, indian breadroot, indian chocolate, indian madder, indian paint, indian paintbrush, indian potato, indian rhubarb, indian salad, ipomoea fastigiata, ipomoea panurata, ipomoea pes-caprae, ipomoea tricolor, iridaceae, iris family, isatis, isopyrum, isopyrum biternatum, jacob's ladder, jamaica sorrel, jasmine tobacco, jerusalem artichoke, jerusalem artichoke sunflower, john's cabbage, joseph's coat, juncus, kentan, kidney vetch, klammath weed, kok-saghyz, kok-sagyz, korean velvet grass, kurrat, lablab purpureus, laccopetalum giganteum, lace-flower vine, lactuca sativa, ladies' tobacco, lady's laces, lady's tobacco, laminaria, laportea canadensis, large-leaved aster, lathyrus latifolius, lathyrus niger, lathyrus palustris, lathyrus pratensis, lathyrus splendens, lathyrus sylvestris, lathyrus vernus, lavatera arborea, leadwort family, leafy spurge, lemon balm, lenten rose, leontopodium alpinum, lepidium, lepidium alpina, lespedeza cuneata, lespedeza sericea, lesser calamint, lesser celandine, lesser galangal, lesser knapweed, lesser spearwort, leucanthemum lacustre, leucanthemum vulgare, leucogenes leontopodium, levant garlic, lewisia cotyledon, leymus condensatus, liatris, liatris pycnostachya, life-of-man, lilies of the valley, lilium lancifolium, lilyturf, lily of the valley, lily turf, linaria vulgaris, linosyris vulgaris, lion's beard, lion's foot, liriope muscari, lithophragma, lithophragma affine, lithophragma affinis, lithospermum, lithospermum canescens, lithospermum caroliniense, lithospermum officinale, live-forever, livelong, lizard's-tail, lizard's-tail family, loasa, lobelia dortmanna, lobelia siphilitica, lobularia maritima, lolium perenne, longroot, lotus, lotus berthelotii, lupinus perennis, lychins chalcedonica, lychins floscuculi, lychnis, lychnis flos-cuculi, lycopus americanus, lysichiton americanum, macleaya, macrotyloma, maltese cross, malva moschata, malva sylvestris, man-of-the-earth, mandevilla, manroot, marantaceae, marguerite, marguerite daisy, marjoram, marsh felwort, marsh gentian, marsh mallow, marsh pea, marsh st-john's wort, marsh trefoil, martynia, martynia annua, maryland golden aster, mascarene grass, matricaria oreades, matricaria tchihatchewii, maximilian's sunflower, may lily, meadow buttercup, meadow clary, meadow cranesbill, meadow foxtail, meadow pea, meadow saxifrage, means grass, meconopsis betonicifolia, mediterranean snapdragon, medusa's head, melancholy thistle, melissa officinalis, mentha pulegium, menyanthes trifoliata, mercurialis perennis, mexican hyssop, michaelmas daisy, micromeria chamissonis, micromeria douglasii, mint geranium, minuartia, missouri gourd, miterwort, mitrewort, monarda clinopodia, monarda didyma, monarda fistulosa, monarda punctata, moon daisy, mossy saxifrage, moss campion, moss phlox, moss pink, mountain hollyhock, mountain lily, mountain mint, mountain phlox, mountain watercress, mount cook lily, mouse ear, munjeet, musk mallow, musk thistle, mus rose, myosotis scorpiodes, myosotis sylvatica, myrrhis, myrtle flag, nabalus, nabalus serpentarius, naranjilla, narrow-leaved everlasting pea, nasturtium amphibium, nasturtium officinale, nepeta cataria, new england aster, new york aster, nicotiana alata, nodding thistle, nolina, northern bedstraw, northern dune tansy, northern jacob's ladder, northern snow bedstraw, north island edelweiss, nutgrass, nutsedge, nut grass, nut sedge, nyctaginia capitata, ocimum basilicum, oenothera fruticosa, old-maid's bonnet, onobrychis viciaefolia, onobrychis viciifolia, onosmodium, orange milkweed, orange sneezeweed, orchidaceae, orchid family, order eubryales, oregano, oriental poppy, origanum vulgare, ornithogalum thyrsoides, orpin, orpine, orthilia, oryzopsis miliacea, oswego tea, our lady's bedstraw, owlclaws, ox-eyed daisy, oxalis violacea, oxeye, oxeye daisy, ozothamnus, pachysandra procumbens, packera, paeoniaceae, painted daisy, painted nettle, pampas grass, panax, papaver nudicaule, papaver orientale, paris daisy, paronychia, parsley, parthenium integrifolium, paspalum, paspalum dilatatum, paspalum notatum, peach bell, peach bells, peltandra virginica, peltiphyllum peltatum, pennisetum cenchroides, pennisetum ruppelii, pennisetum setaceum, pennyroyal, peony family, perennation, perennially, perennial pea, perennial ragweed, perennial ryegrass, persian violet, petrocoptis, petroselinum crispum, petty morel, phalaris aquatica, phalaris arundinacea, phalaris tuberosa, phaseolus caracalla, phaseolus coccineus, phaseolus multiflorus, phlox subulata, physalis alkekengi, phytolacca americana, pia, pickaback plant, pigeon berry, piggyback plant, pilewort, pilosella, pine-barren sandwort, pinwheel, pipewort, piqueria, pitcher sage, plantago major, plantago media, pleiospilos, pleurisy root, plumbaginaceae, plumed thistle, plume thistle, poa, podophyllum, poisonous nightshade, poison camas, poke, pokeweed, polecat weed, polemonium boreale, polemonium caeruleum, polemonium reptans, polemonium van-bruntiae, polianthes, polygala alba, polygala paucifolia, polygala vulgaris, polygonatum biflorum, polygonatum commutatum, polygonum aubertii, polymonium caeruleum van-bruntiae, pomme blanche, pomme de prairie, pondweed, poppy, potentilla, potentilla anserina, pot marjoram, prairie anemone, prairie aster, prairie dock, prairie golden aster, prairie gourd, prairie gourd vine, prairie mimosa, prairie sage, prairie sagewort, prairie smoke, prenanthes, prenanthes serpentaria, prickle-weed, pride of california, prince's-plume, pritzelago alpina, prunella, prunella vulgaris, psoralea esculenta, puccoon, pudding berry, pulicaria dysenterica, pulsatilla patens, pulsatilla vulgaris, purple avens, purple clover, purple cress, purple milk vetch, purple poppy mallow, purple silkweed, pussytoes, pycnanthemum virginianum, pyramid bugle, pyramid plant, pyrenees daisy, pyrethrum, ragged robin, railroad vine, ramee, ramie, ramp, ranunculus, ranunculus acris, ranunculus bulbosus, ranunculus ficaria, ranunculus flammula, ranunculus lyalii, ranunculus occidentalis, ranunculus repens, raoulia australis, raoulia lutescens, ratibida, rattlesnake's master, rattlesnake master, red-berry, redberry, redroot, red baneberry, red clover, red sorrel, reed, reed canary grass, reed grass, rheumatism weed, rhodes grass, ribbon grass, rice, richweed, rivina, robin's plantain, rock pink, rock sandwort, roridula, rorippa, rorippa amphibia, rorippa nasturtium-aquaticum, rosebay willowherb, roselle, rosinweed, rozelle, rubia cordifolia, rudbeckia, rue, rumex scutatus, runner bean, rush rose, russian dandelion, russian vine, ruta graveolens, ryegrass, rye grass, saccharum, sagina, sainfoin, salvia pratensis, salvia spathacea, sandwort, sanfoin, sanguinaria canadensis, saponaria, sarracenia purpurea, satureia montana, satureja calamintha glandulosa, satureja calamintha officinalis, satureja douglasii, satureja montana, satureja nepeta, saururaceae, saururus cernuus, sawwort, saxifraga, saxifraga aizoides, saxifraga granulata, saxifraga hypnoides, scabiosa arvensis, scammonyroot, scarlet lychnis, scarlet musk flower, scarlet runner, scarlet runner bean, scented fern, schnittlaugh, scirpus, scoke, scopolia, scorzonera, scorzonera hispanica, sea-lavender family, seabeach sandwort, seaside daisy, sea cole, sea kale, sedum telephium, sego lily, self-heal, senecio cineraria, senecio triangularis, senega, senna marilandica, sericea lespedeza, seriphidium canum, serratula, serratula tinctoria, setaria, shawnee salad, shawny, sheep plant, shell-flower, shellflower, short's aster, shortia, showy sunflower, shrub, siberian wall flower, sidalcea malviflora, sida hermaphrodita, silene acaulis, silene caroliniana, silene uniflora, silene virginica, silene vulgaris, silphium, silphium laciniatum, silver-lace, silverweed, silver lace, silver lace vine, silver sage, silver sagebrush, sinningia, siskiyou lewisia, sisymbrium tanacetifolia, sium, sium latifolium, sium suave, skunk cabbage, smilo, smilo grass, smooth darling pea, snail-flower, snailflower, snail bean, snail flower, snake-head, snakeberry, snakehead, snow trillium, soapwort gentian, solanum dulcamara, solanum jamesii, solanum quitoense, solenostemon blumei, solenostemon scutellarioides, sorghum halapense, sorghum halepense, sorrel, sparaxis, spiderwort family, sporobolus, spraguea, spreading bellflower, spreading dogbane, spring vetch, spring vetchling, stachys palustris, stachys sylvatica, stanleya pinnata, star-of-bethlehem, star grass, stemless carline thistle, stemless hymenoxys, stiff aster, stinging nettle, stock, stokes' aster, stokesia laevis, stone-root, stoneroot, stone root, strawberry, strelitzia, striped gentian, sturt's desert pea, sturt pea, stylophorum diphyllum, st peter's wort, subshrub, succory, suffrutex, sulla, sundial lupine, sundrops, swainsona galegifolia, swainsona grandiflora, swainsona greyana, swallowwort, swallow wort, swamp lily, swamp milkweed, sweet alison, sweet alyssum, sweet balm, sweet basil, sweet calamus, sweet flag, sweet sultan, sweet vetch, sweet woodruff, swertia perennia, symplocarpus foetidus, syrian bean caper, tacca leontopetaloides, tacca pinnatifida, talinum calycinum, tall bellflower, tall buttercup, tall crowfoot, tall field buttercup, tall mallow, tall meadow grass, tall oat grass, tall sunflower, tall white violet, tanacetum balsamita, tanacetum coccineum, tanacetum douglasii, tanacetum parthenium, tanacetum ptarmiciflorum, tanacetum vulgare, tansy, tansy-leaved rocket, taraxacum kok-saghyz, tarragon, tellima affinis, tephrosia virginiana, tetraneuris acaulis, tetterwort, teucrium, teucrium chamaedrys, thalictrum, thoroughwort, thyme-leaved speedwell, thymus vulgaris, tiger lily, tinker's root, toadflax, tobacco, tofieldia, tolmiea menziesii, toowomba canary grass, top onion, tragopogon dubius, tramp's spurge, transvaal daisy, trapa, trautvetteria, trautvetteria carolinensis, treasure flower, tree, tree mallow, tree onion, tribulus, trifolium pratense, triglochin, triglochin maritima, trilisa odoratissima, triostium perfoliatum, tripleurospermum oreades tchihatchewii, tripleurospermum tchihatchewii, trollius, tuber root, tuckahoe, tufted centaury, tufted vetch, tulip, tulipa, turfing daisy, turmeric root, turtlehead, tussilago, tussilago farfara, tussock bellflower, typhaceae, umbrella plant, upland white aster, urtica dioica, uvularia, valeriana, vegetable sheep, velvet-leaf, velvetleaf, velvet grass, veratrum, verbesina alternifolia, verbesina helianthoides, verbesina virginica, veronicastrum virginicum, veronica officinalis, veronica serpyllifolia, vicia, vicia cracca, vicia orobus, vigna caracalla, viola canadensis, violet wood sorrel, viper's grass, virginia crownbeard, virginia mallow, virginia spring beauty, virginia waterleaf, waldmeister, wallflower, wall germander, wandflower, water-plantain family, waterleaf family, waterwheel plant, water avens, water dragon, water hemlock, water horehound, water lobelia, water parsnip, water shamrock, weeping love grass, western buttercup, western mugwort, western ragweed, western wall flower, white-man's foot, whiteman's foot, white daisy, white mallow, white prairie aster, white sage, white violet, white wood aster, whorled aster, whorlywort, wickup, wild coffee, wild crocus, wild ginger, wild hollyhock, wild leek, wild licorice, wild liquorice, wild lupine, wild marjoram, wild morning-glory, wild pink, wild potato, wild potato vine, wild pumpkin, wild quinine, wild rice, wild sarsaparilla, wild sarsparilla, wild senna, wild snapdragon, wild spurge, wild sweet pea, wild sweet potato vine, wild vanilla, willow bell, windmill grass, wingstem, winter aconite, winter cherry, winter savory, winter sweet, wolf's bane, wolf's milk, wolfbane, wolfsbane, wonder flower, woodland oxeye, woodland star, woodruff, woody nightshade, wood cudweed, wood nettle, wood poppy, wood spurge, wormwood sage, yellow bedstraw, yellow chamomile, yellow cleavers, yellow giant hyssop, yellow ironweed, yellow mountain saxifrage, yellow root, yellow salsify, yellow spiny daisy, yellow vetchling, yerba buena, yorkshire fog, youth-on-age, zigadenus nuttalli, zingiber, zizania aquatica, zoysia tenuifolia, zygophyllum fabago

flora, plant, plant life

continual, long, recurrent, repeated