Jump to: A B C D E F G H I J K L M N O P Q R S T U V W Y ʻ
A
- Adam's needle Yucca filamentosa · 21 states
- Agarita Mahonia trifoliolata · 1 states
- Alderleaf mountain mahogany Cercocarpus montanus · 15 states
- Allegheny chinquapin Castanea pumila · 21 states
- Allegheny serviceberry Amelanchier laevis · 17 states
- American alumroot Heuchera americana · 20 states
- American basswood Tilia americana · 37 states
- American beautyberry Callicarpa americana · 13 states
- American beech Fagus grandifolia · 31 states
- American bellflower Campanulastrum americanum · 34 states
- American bittersweet Celastrus scandens · 33 states
- American bladdernut Staphylea trifolia · 28 states
- American century plant Agave americana · 2 states
- American cranberry Vaccinium macrocarpon · 15 states
- American elm Ulmus americana · 31 states
- American hazelnut Corylus americana · 34 states
- American holly Ilex opaca · 28 states
- American hornbeam Carpinus caroliniana · 33 states
- American mountain ash Sorbus americana · 18 states
- American olive Osmanthus americanus · 8 states
- American plum Prunus americana · 37 states
- American smoketree Cotinus obovatus · 2 states
- American strawberry bush Euonymus americanus · 23 states
- American sycamore Platanus occidentalis · 28 states
- American wisteria Wisteria frutescens · 14 states
- Anderson wolfberry Lycium andersonii · 1 states
- Antelope bitterbrush Purshia tridentata · 12 states
- Antelope-horns milkweed Asclepias asperula · 2 states
- Apache plume Fallugia paradoxa · 8 states
- Appalachian gooseberry Ribes rotundifolium · 11 states
- Arctic brome (Kalm's brome) Bromus kalmii · 15 states
- Arizona rosewood Vauquelinia californica · 1 states
- Arrowleaf balsamroot Balsamorhiza sagittata · 12 states
- Arroyo lupine Lupinus succulentus · 2 states
- Aspen fleabane Erigeron speciosus · 7 states
- Atlantic white cedar Chamaecyparis thyoides · 17 states
- Autumn sage Salvia greggii · 2 states
B
- Baby blue eyes Nemophila menziesii · 3 states
- Bald cypress Taxodium distichum · 16 states
- Balsam fir Abies balsamea · 6 states
- Balsam poplar Populus balsamifera · 8 states
- Banana yucca Yucca baccata · 8 states
- Beach naupaka Scaevola taccada · 1 states
- Beach plum Prunus maritima · 8 states
- Beach strawberry Fragaria chiloensis · 1 states
- Beach sunflower Helianthus debilis · 1 states
- Bear oak Quercus ilicifolia · 13 states
- Bearberry Arctostaphylos uva-ursi · 34 states
- Beavertail prickly pear Opuntia basilaris · 1 states
- Bebb willow Salix bebbiana · 6 states
- Big bluestem Andropogon gerardii · 41 states
- Big sagebrush Artemisia tridentata · 14 states
- Bigleaf magnolia Magnolia macrophylla · 13 states
- Bigleaf maple Acer macrophyllum · 3 states
- Bigtooth aspen Populus grandidentata · 20 states
- Birdfoot violet Viola pedata · 34 states
- Bitternut hickory Carya cordiformis · 28 states
- Black ash Fraxinus nigra · 19 states
- Black cherry Prunus serotina · 35 states
- Black huckleberry Gaylussacia baccata · 25 states
- Black locust Robinia pseudoacacia · 12 states
- Black maple Acer nigrum · 3 states
- Black oak Quercus velutina · 30 states
- Black sage Salvia mellifera · 1 states
- Black tupelo Nyssa sylvatica · 31 states
- Black walnut Juglans nigra · 33 states
- Black willow Salix nigra · 24 states
- Black-eyed Susan Rudbeckia hirta · 44 states
- Blackfoot daisy Melampodium leucanthum · 6 states
- Blackhaw Viburnum prunifolium · 12 states
- Blackjack oak Quercus marilandica · 24 states
- Bloodroot Sanguinaria canadensis · 34 states
- Blue grama Bouteloua gracilis · 19 states
- Blue mistflower Conoclinium coelestinum · 32 states
- Blue palo verde Parkinsonia florida · 3 states
- Blue vervain Verbena hastata · 34 states
- Blue wild indigo Baptisia australis · 23 states
- Bluebead Clintonia borealis · 14 states
- Blueblossom Ceanothus thyrsiflorus · 1 states
- Bluebunch wheatgrass Pseudoroegneria spicata · 16 states
- Bog Labrador tea Ledum groenlandicum · 11 states
- Bog birch Betula pumila · 2 states
- Bog laurel Kalmia polifolia · 13 states
- Bog rosemary Andromeda polifolia · 9 states
- Box huckleberry Gaylussacia brachycera · 8 states
- Boxelder Acer negundo · 16 states
- Bristly locust Robinia hispida · 10 states
- Brittlebush Encelia farinosa · 4 states
- Broadleaf cattail Typha latifolia · 39 states
- Brown-eyed Susan Rudbeckia triloba · 21 states
- Buffalograss Bouteloua dactyloides · 19 states
- Bunchberry Cornus canadensis · 18 states
- Bur oak Quercus macrocarpa · 33 states
- Butterflyweed Asclepias tuberosa · 40 states
- Butternut Juglans cinerea · 26 states
C
- Cabbage palmetto Sabal palmetto · 5 states
- California bay laurel Umbellularia californica · 3 states
- California buckwheat Eriogonum fasciculatum · 2 states
- California coffeeberry Rhamnus californica · 1 states
- California flannelbush Fremontodendron californicum · 3 states
- California fuchsia Epilobium canum · 8 states
- California poppy Eschscholzia californica · 6 states
- California wild grape Vitis californica · 1 states
- Canada anemone Anemone canadensis · 29 states
- Canada plum Prunus nigra · 3 states
- Canada wild rye Elymus canadensis · 37 states
- Canada yew Taxus canadensis · 18 states
- Canadian burnet Sanguisorba canadensis · 20 states
- Canadian serviceberry Amelanchier canadensis · 21 states
- Canadian wild ginger Asarum canadense · 30 states
- Candle anemone (thimbleweed) Anemone cylindrica · 12 states
- Candy barrel cactus (fishhook barrel) Ferocactus wislizeni · 1 states
- Cardinal flower Lobelia cardinalis · 41 states
- Carolina allspice Calycanthus floridus · 17 states
- Carolina jessamine Gelsemium sempervirens · 10 states
- Carolina springbeauty Claytonia caroliniana · 20 states
- Catawba rosebay Rhododendron catawbiense · 8 states
- Cenizo sage Leucophyllum frutescens · 2 states
- Chalk dudleya Dudleya pulverulenta · 4 states
- Chaparral yucca Hesperoyucca whipplei · 2 states
- Checker lily Fritillaria affinis · 3 states
- Chinese houses Collinsia heterophylla · 1 states
- Chinkapin oak Quercus muehlenbergii · 30 states
- Chocolate flower Berlandiera lyrata · 6 states
- Chokecherry Prunus virginiana · 44 states
- Christmas fern Polystichum acrostichoides · 34 states
- Chuparosa Justicia californica · 1 states
- Cinnamon fern Osmunda cinnamomea · 32 states
- Claret cup cactus Echinocereus triglochidiatus · 1 states
- Clasping coneflower Dracopis amplexicaulis · 7 states
- Climbing prairie rose Rosa setigera · 27 states
- Closed bottle gentian Gentiana andrewsii · 23 states
- Coast live oak Quercus agrifolia · 1 states
- Coast redwood Sequoia sempervirens · 1 states
- Coastal sweetpepperbush Clethra alnifolia · 13 states
- Cockspur hawthorn Crataegus crus-galli · 25 states
- Cocoplum Chrysobalanus icaco · 1 states
- Colorado blue columbine Aquilegia coerulea · 9 states
- Colorado four o'clock Mirabilis multiflora · 7 states
- Common blue violet Viola sororia · 37 states
- Common buttonbush Cephalanthus occidentalis · 29 states
- Common camas Camassia quamash · 3 states
- Common elderberry Sambucus nigra ssp. canadensis · 36 states
- Common evening primrose Oenothera biennis · 30 states
- Common gaillardia (blanketflower) Gaillardia aristata · 11 states
- Common hackberry Celtis occidentalis · 33 states
- Common hoptree Ptelea trifoliata · 28 states
- Common juniper Juniperus communis · 39 states
- Common leopardbane Arnica acaulis · 10 states
- Common manzanita Arctostaphylos manzanita · 1 states
- Common ninebark Physocarpus opulifolius · 30 states
- Common persimmon Diospyros virginiana · 26 states
- Common selfheal Prunella vulgaris · 25 states
- Common sneezeweed Helenium autumnale · 40 states
- Common snowberry Symphoricarpos albus · 21 states
- Common sotol Dasylirion wheeleri · 3 states
- Common sunflower Helianthus annuus · 18 states
- Common winterberry Ilex verticillata · 32 states
- Common yarrow Achillea millefolium · 47 states
- Compass plant Silphium laciniatum · 20 states
- Coontie Zamia pumila · 1 states
- Coral bean Erythrina herbacea · 10 states
- Coral honeysuckle Lonicera sempervirens · 16 states
- Coralberry Symphoricarpos orbiculatus · 30 states
- Coulter's Matilija poppy Romneya coulteri · 1 states
- Creeping Oregon grape Mahonia repens · 15 states
- Creeping juniper Juniperus horizontalis · 12 states
- Creeping phlox Phlox stolonifera · 11 states
- Creeping phlox Phlox subulata · 23 states
- Creeping snowberry Gaultheria hispidula · 12 states
- Creosote bush Larrea tridentata · 6 states
- Crevice alumroot Heuchera micrantha · 4 states
- Crimson-eyed rose-mallow Hibiscus moscheutos · 28 states
- Crossvine Bignonia capreolata · 16 states
- Cucumbertree Magnolia acuminata · 19 states
- Culver's root Veronicastrum virginicum · 32 states
- Cup plant Silphium perfoliatum · 27 states
- Cutleaf coneflower Rudbeckia laciniata · 43 states
D
- Deerberry Vaccinium stamineum · 22 states
- Deerbrush Ceanothus integerrimus · 5 states
- Deergrass Muhlenbergia rigens · 5 states
- Dense blazing star Liatris spicata · 24 states
- Desert bluebells Phacelia campanularia · 2 states
- Desert globemallow Sphaeralcea ambigua · 2 states
- Desert marigold Baileya multiradiata · 4 states
- Desert sand verbena Abronia villosa · 4 states
- Desert willow Chilopsis linearis · 5 states
- Devil's walking stick Aralia spinosa · 21 states
- Dotted blazing star Liatris punctata · 17 states
- Douglas fir Pseudotsuga menziesii · 12 states
- Douglas iris Iris douglasiana · 3 states
- Downy hawthorn Crataegus mollis · 24 states
- Downy serviceberry Amelanchier arborea · 37 states
- Drummond phlox Phlox drummondii · 1 states
- Dutchman's breeches Dicentra cucullaria · 32 states
- Dwarf crested iris Iris cristata · 17 states
- Dwarf fothergilla Fothergilla gardenii · 5 states
- Dwarf larkspur Delphinium tricorne · 15 states
- Dwarf palmetto Sabal minor · 6 states
E
- Early azalea Rhododendron prinophyllum · 17 states
- Eastern bluestar Amsonia tabernaemontana · 18 states
- Eastern cottonwood Populus deltoides · 42 states
- Eastern gray beardtongue Penstemon canescens · 13 states
- Eastern hay-scented fern Dennstaedtia punctilobula · 25 states
- Eastern hemlock Tsuga canadensis · 25 states
- Eastern hop-hornbeam Ostrya virginiana · 37 states
- Eastern leatherwood Dirca palustris · 25 states
- Eastern purple coneflower Echinacea purpurea · 24 states
- Eastern red cedar Juniperus virginiana · 37 states
- Eastern red columbine Aquilegia canadensis · 36 states
- Eastern redbud Cercis canadensis · 32 states
- Eastern smooth beardtongue Penstemon laevigatus · 15 states
- Eastern teaberry Gaultheria procumbens · 23 states
- Eastern wahoo Euonymus atropurpureus · 23 states
- Eastern white pine Pinus strobus · 28 states
- Elegant clarkia Clarkia unguiculata · 1 states
- Engelmann spruce Picea engelmannii · 1 states
- Engelmann's hedgehog cactus Echinocereus engelmannii · 1 states
- Engelmann's prickly pear (cactus apple) Opuntia engelmannii · 1 states
F
- Fairy duster Calliandra eriophylla · 1 states
- Fall obedient plant Physostegia virginiana · 37 states
- Farewell-to-spring Clarkia amoena · 4 states
- Farkleberry Vaccinium arboreum · 16 states
- Feathery false Solomon's seal Maianthemum racemosum · 45 states
- Fevertree Pinckneya bracteata · 3 states
- Fewleaf sunflower Helianthus occidentalis · 16 states
- Fire pink Silene virginica · 26 states
- Firecracker penstemon Penstemon eatonii · 3 states
- Fireweed Chamerion angustifolium · 37 states
- Flame azalea Rhododendron calendulaceum · 14 states
- Florida anisetree Illicium floridanum · 3 states
- Florida hopbush Dodonaea viscosa · 1 states
- Flowering dogwood Cornus florida · 31 states
- Flowering spurge Euphorbia corollata · 29 states
- Foothill penstemon Penstemon heterophyllus · 1 states
- Foxglove beardtongue Penstemon digitalis · 35 states
- Fragrant sumac Rhus aromatica · 30 states
- Franklin tree Franklinia alatamaha · 1 states
- Fremont cottonwood Populus fremontii · 7 states
- Fringed bluestar Amsonia ciliata · 2 states
- Fringed winecup Callirhoe digitata · 1 states
G
- Gambel oak Quercus gambelii · 8 states
- Garrett's firechalice Zauschneria garrettii · 4 states
- Giant red paintbrush Castilleja miniata · 13 states
- Globe gilia Gilia capitata · 5 states
- Golden alexanders Zizia aurea · 35 states
- Golden currant Ribes aureum · 3 states
- Gray alder Alnus incana · 26 states
- Gray birch Betula populifolia · 17 states
- Gray dogwood Cornus racemosa · 19 states
- Grayhead coneflower Ratibida pinnata · 26 states
- Great Valley gumweed Grindelia camporum · 2 states
- Great blue lobelia Lobelia siphilitica · 36 states
- Great laurel Rhododendron maximum · 20 states
- Green ash Fraxinus pennsylvanica · 43 states
- Green milkweed Asclepias viridis · 2 states
- Green-and-gold Chrysogonum virginianum · 13 states
- Greenleaf manzanita Arctostaphylos patula · 9 states
- Groundnut Apios americana · 21 states
- Groundsel tree Baccharis halimifolia · 12 states
- Gulf muhly Muhlenbergia capillaris · 16 states
H
- Hairy beardtongue Penstemon hirsutus · 19 states
- Harebell Campanula rotundifolia · 35 states
- Hawaiian tree fern (hapuu ii) Cibotium menziesii · 1 states
- Heart-leaved meadow parsnip Zizia aptera · 30 states
- Heartleaf foamflower Tiarella cordifolia · 18 states
- Henderson's shooting star Dodecatheon hendersonii · 3 states
- Highbush blueberry Vaccinium corymbosum · 25 states
- Highbush cranberry Viburnum opulus var. americanum · 22 states
- Hinahina kū kahakai Heliotropium anomalum · 1 states
- Hobblebush Viburnum lantanoides · 17 states
- Hollow Joe-pye weed Eutrochium fistulosum · 24 states
- Honey locust Gleditsia triacanthos · 13 states
- Honey mesquite Prosopis glandulosa · 4 states
- Hooker's evening primrose Oenothera elata · 14 states
- Huisache Vachellia farnesiana · 1 states
- Hummingbird sage Salvia spathacea · 1 states
I
- Idaho fescue Festuca idahoensis · 12 states
- Ilima Sida fallax · 1 states
- Indian blanket Gaillardia pulchella · 17 states
- Indian ricegrass Achnatherum hymenoides · 17 states
- Indiangrass Sorghastrum nutans · 37 states
- Indigo bush Amorpha fruticosa · 37 states
- Inkberry Ilex glabra · 14 states
- Inland sea oats Chasmanthium latifolium · 21 states
- Interrupted fern Osmunda claytoniana · 29 states
J
- Jack-in-the-pulpit Arisaema triphyllum · 35 states
- Jacob's ladder Polemonium reptans · 31 states
- Jerusalem artichoke Helianthus tuberosus · 26 states
- Jojoba Simmondsia chinensis · 2 states
- Joshua tree Yucca brevifolia · 3 states
K
- Kentucky coffeetree Gymnocladus dioicus · 15 states
- Kentucky yellowwood Cladrastis kentukea · 8 states
- King of the meadow Thalictrum pubescens · 21 states
- Koa Acacia koa · 1 states
- Kou Cordia subcordata · 1 states
- Koʻokoʻolau Bidens menziesii · 1 states
- Koʻoloaʻula (red ʻilima) Abutilon menziesii · 1 states
L
- Lacy phacelia Phacelia tanacetifolia · 3 states
- Lanceleaf coreopsis Coreopsis lanceolata · 35 states
- Large penstemon (shell-leaf beardtongue) Penstemon grandiflorus · 12 states
- Large-flowered bellwort Uvularia grandiflora · 27 states
- Largeflower tickseed Coreopsis grandiflora · 25 states
- Leadplant Amorpha canescens · 16 states
- Leavenworth's eryngo Eryngium leavenworthii · 1 states
- Leavenworth's tickseed Coreopsis leavenworthii · 1 states
- Lemon beebalm Monarda citriodora · 10 states
- Lewis flax (blue flax) Linum lewisii · 17 states
- Lewis' mock orange Philadelphus lewisii · 5 states
- Little bluestem Schizachyrium scoparium · 42 states
- Littleflower penstemon Penstemon procerus · 11 states
- Lobed tickseed Coreopsis auriculata · 8 states
- Loblolly bay Gordonia lasianthus · 7 states
- Loblolly pine Pinus taeda · 18 states
- Longbract wild indigo (cream false indigo) Baptisia bracteata var. leucophaea · 19 states
- Longleaf pine Pinus palustris · 10 states
- Loulu (Hillebrand's fan palm) Pritchardia hillebrandii · 1 states
- Low prickly pear Opuntia humifusa · 31 states
- Lowbush blueberry Vaccinium angustifolium · 22 states
- Lyreleaf sage Salvia lyrata · 22 states
M
- Maile Alyxia stellata · 1 states
- Mamane Sophora chrysophylla · 1 states
- Mapleleaf viburnum Viburnum acerifolium · 27 states
- Marsh marigold Caltha palustris · 28 states
- Maryland goldenaster Chrysopsis mariana · 17 states
- Maximilian sunflower Helianthus maximiliani · 3 states
- Mayapple Podophyllum peltatum · 35 states
- Mayhaw Crataegus opaca · 6 states
- Maypop passionflower Passiflora incarnata · 21 states
- Maʻo (Hawaiian cotton) Gossypium tomentosum · 1 states
- Maʻo hau hele (Hawaiian yellow hibiscus) Hibiscus brackenridgei · 1 states
- Mealy blue sage Salvia farinacea · 1 states
- Mexican buckeye Ungnadia speciosa · 2 states
- Mexican hat Ratibida columnifera · 17 states
- Mexican olive Cordia boissieri · 1 states
- Mexican plum Prunus mexicana · 10 states
- Michigan lily Lilium michiganense · 16 states
- Miller's witch-alder Fothergilla milleri · 6 states
- Milo Thespesia populnea · 1 states
- Miniature lupine Lupinus bicolor · 4 states
- Mockernut hickory Carya tomentosa · 26 states
- Mormon tea Ephedra viridis · 1 states
- Mountain avens Dryas octopetala · 1 states
- Mountain azalea Rhododendron canescens · 14 states
- Mountain hemlock Tsuga mertensiana · 1 states
- Mountain laurel Kalmia latifolia · 23 states
- Mountain maple Acer spicatum · 18 states
- Mountain silverbell Halesia tetraptera · 13 states
- Mountain witch-alder Fothergilla major · 8 states
- Mule's ears Wyethia amplexicaulis · 8 states
- Munro's globemallow Sphaeralcea munroana · 9 states
N
- Naio Myoporum sandwicense · 1 states
- Nannyberry Viburnum lentago · 25 states
- Narrow-leaf coneflower Echinacea angustifolia · 11 states
- Narrowleaf blue-eyed grass Sisyrinchium angustifolium · 21 states
- Narrowleaf evening-primrose Oenothera fruticosa · 10 states
- Narrowleaf milkweed Asclepias fascicularis · 6 states
- Nehe Lipochaeta succulenta · 1 states
- Nettleleaf giant hyssop Agastache urticifolia · 9 states
- New England aster Symphyotrichum novae-angliae · 29 states
- New Jersey tea Ceanothus americanus · 35 states
- New Mexico locust Robinia neomexicana · 2 states
- New York ironweed Vernonia noveboracensis · 18 states
- Nootka rose Rosa nutkana · 1 states
- Northern bayberry Morella pensylvanica · 2 states
- Northern blue flag Iris versicolor · 10 states
- Northern bush honeysuckle Diervilla lonicera · 18 states
- Northern catalpa Catalpa speciosa · 9 states
- Northern maidenhair fern Adiantum pedatum · 37 states
- Northern red oak Quercus rubra · 33 states
- Northern spicebush Lindera benzoin · 31 states
- Northern white cedar Thuja occidentalis · 21 states
O
- Oakleaf hydrangea Hydrangea quercifolia · 9 states
- Oceanspray Holodiscus discolor · 9 states
- Ocotillo Fouquieria splendens · 3 states
- Ohelo ai Vaccinium reticulatum · 1 states
- Ohia lehua Metrosideros polymorpha · 1 states
- Ohio buckeye Aesculus glabra · 20 states
- Old man's whiskers Geum triflorum · 9 states
- Ontario blazing star Liatris cylindracea · 8 states
- Orange azalea Rhododendron austrinum · 5 states
- Orange coneflower Rudbeckia fulgida · 23 states
- Oregon white oak Quercus garryana · 3 states
- Ostrich fern Matteuccia struthiopteris · 13 states
- Ozark witch-hazel Hamamelis vernalis · 1 states
P
- Pacific aster Symphyotrichum chilense · 3 states
- Pacific madrone Arbutus menziesii · 3 states
- Pacific trillium Trillium ovatum · 3 states
- Pacific yew Taxus brevifolia · 1 states
- Pagoda dogwood Cornus alternifolia · 30 states
- Pale purple coneflower Echinacea pallida · 17 states
- Palmer's penstemon Penstemon palmeri · 3 states
- Paper birch Betula papyrifera · 28 states
- Parry's agave Agave parryi · 2 states
- Parry's penstemon Penstemon parryi · 1 states
- Partridge pea Chamaecrista fasciculata · 30 states
- Partridgeberry Mitchella repens · 31 states
- Pawpaw Asimina triloba · 29 states
- Peachleaf willow Salix amygdaloides · 4 states
- Pearly everlasting Anaphalis margaritacea · 38 states
- Pignut hickory Carya glabra · 31 states
- Pin cherry Prunus pensylvanica · 20 states
- Pin oak Quercus palustris · 27 states
- Pincushion daisy (perfumeballs) Gaillardia suavis · 1 states
- Pineleaf penstemon Penstemon pinifolius · 2 states
- Pink evening primrose Oenothera speciosa · 8 states
- Pink-scale blazing star Liatris elegans · 9 states
- Pitch pine Pinus rigida · 12 states
- Plains coreopsis Coreopsis tinctoria · 16 states
- Plumleaf azalea Rhododendron prunifolium · 3 states
- Ponderosa pine Pinus ponderosa · 16 states
- Porcupine grass Hesperostipa spartea · 2 states
- Possumhaw Ilex decidua · 17 states
- Post oak Quercus stellata · 28 states
- Prairie Junegrass Koeleria macrantha · 29 states
- Prairie blazing star Liatris pycnostachya · 19 states
- Prairie blue-eyed grass Sisyrinchium campestre · 11 states
- Prairie cordgrass Spartina pectinata · 25 states
- Prairie crabapple Malus ioensis · 15 states
- Prairie dropseed Sporobolus heterolepis · 19 states
- Prairie goldenrod Solidago nemoralis · 7 states
- Prairie ironweed Vernonia fasciculata · 14 states
- Prairie onion Allium stellatum · 12 states
- Prairie redroot Ceanothus herbaceus · 1 states
- Prairie rosinweed (prairie dock) Silphium terebinthinaceum · 4 states
- Prairie tickseed Coreopsis palmata · 10 states
- Purple clematis Clematis occidentalis var. occidentalis · 15 states
- Purple meadow-rue Thalictrum dasycarpum · 17 states
- Purple milkweed Asclepias purpurascens · 20 states
- Purple needlegrass Stipa pulchra · 1 states
- Purple prairie clover Dalea purpurea · 18 states
- Purple sage (desert sage) Salvia dorrii · 7 states
- Pussy willow Salix discolor · 18 states
- Pāʻūohiʻiaka Jacquemontia sandwicensis · 1 states
- Pōhinahina (beach vitex) Vitex rotundifolia · 1 states
- Pōhuehue (beach morning glory) Ipomoea pes-caprae · 1 states
Q
- Quaking aspen Populus tremuloides · 39 states
R
- Rattlesnake master Eryngium yuccifolium · 20 states
- Red baneberry Actaea rubra · 29 states
- Red barberry Mahonia haematocarpa · 1 states
- Red buckeye Aesculus pavia · 15 states
- Red chokeberry Aronia arbutifolia · 22 states
- Red huckleberry Vaccinium parvifolium · 1 states
- Red maple Acer rubrum · 33 states
- Red pine Pinus resinosa · 13 states
- Red spruce Picea rubens · 15 states
- Red yucca Hesperaloe parviflora · 2 states
- Red-flowering currant Ribes sanguineum · 4 states
- Red-osier dogwood Cornus sericea · 36 states
- Redbay Persea borbonia · 5 states
- Richardson's alumroot Heuchera richardsonii · 11 states
- Richardson's geranium Geranium richardsonii · 2 states
- River birch Betula nigra · 28 states
- Riverbank grape Vitis riparia · 20 states
- Rocky Mountain bee plant Peritoma serrulata · 26 states
- Rocky Mountain iris Iris missouriensis · 11 states
- Rocky Mountain penstemon Penstemon strictus · 5 states
- Rocky Mountain zinnia Zinnia grandiflora · 6 states
- Rose's wild ginger Asarum rosei · 1 states
- Rough coneflower Rudbeckia grandiflora · 1 states
- Roughleaf dogwood Cornus drummondii · 11 states
- Roundhead lespedeza Lespedeza capitata · 30 states
- Royal catchfly Silene regia · 1 states
- Royal fern Osmunda regalis var. spectabilis · 30 states
- Royal penstemon Penstemon speciosus · 6 states
- Rubber rabbitbrush Ericameria nauseosa · 17 states
- Rush milkweed Asclepias subulata · 3 states
- Rusty blackhaw viburnum Viburnum rufidulum · 18 states
S
- Saguaro Carnegiea gigantea · 1 states
- Salmonberry Rubus spectabilis · 1 states
- Sand cherry Prunus pumila · 5 states
- Saskatoon serviceberry Amelanchier alnifolia · 14 states
- Sassafras Sassafras albidum · 22 states
- Saw palmetto Serenoa repens · 4 states
- Scaly blazing star Liatris squarrosa · 22 states
- Scarlet beebalm Monarda didyma · 25 states
- Scarlet bugler Penstemon barbatus · 2 states
- Scarlet gilia Ipomopsis aggregata · 13 states
- Scarlet globemallow Sphaeralcea coccinea · 12 states
- Scarlet monkeyflower Erythranthe cardinalis · 7 states
- Scarlet oak Quercus coccinea · 28 states
- Scarlet rosemallow Hibiscus coccineus · 9 states
- Scarlet sage Salvia coccinea · 3 states
- Seaside alder Alnus maritima · 3 states
- Seaside daisy Erigeron glaucus · 2 states
- Seaside goldenrod Solidago sempervirens · 13 states
- Seep monkeyflower Erythranthe guttata · 15 states
- Sensitive fern Onoclea sensibilis · 26 states
- Shagbark hickory Carya ovata · 34 states
- Sheep laurel Kalmia angustifolia · 13 states
- Shingle oak Quercus imbricaria · 18 states
- Shore pine Pinus contorta · 1 states
- Shortleaf pine Pinus echinata · 22 states
- Showy goldenrod Solidago speciosa · 28 states
- Showy milkweed Asclepias speciosa · 17 states
- Showy tick trefoil Desmodium canadense · 29 states
- Shrubby St. John's-wort Hypericum prolificum · 33 states
- Shrubby cinquefoil Dasiphora fruticosa ssp. floribunda · 23 states
- Shrubby five-fingers Sibbaldiopsis tridentata · 15 states
- Shumard oak Quercus shumardii · 22 states
- Sideoats grama Bouteloua curtipendula · 38 states
- Silky camellia Stewartia malacodendron · 8 states
- Silver buffaloberry Shepherdia argentea · 17 states
- Silver lupine Lupinus albifrons · 1 states
- Silver maple Acer saccharinum · 37 states
- Silvery lupine Lupinus argenteus · 2 states
- Siskiyou lewisia Lewisia cotyledon · 2 states
- Sitka spruce Picea sitchensis · 1 states
- Slippery elm Ulmus rubra · 30 states
- Small's beardtongue Penstemon smallii · 5 states
- Smooth Solomon's seal Polygonatum biflorum · 34 states
- Smooth alder Alnus serrulata · 23 states
- Smooth azalea Rhododendron arborescens · 13 states
- Smooth hydrangea Hydrangea arborescens · 23 states
- Smooth oxeye Heliopsis helianthoides · 30 states
- Smooth rose Rosa blanda · 17 states
- Smooth sumac Rhus glabra · 42 states
- Snowbrush ceanothus Ceanothus velutinus · 10 states
- Sourwood Oxydendrum arboreum · 17 states
- Southern arrowwood Viburnum dentatum · 28 states
- Southern catalpa Catalpa bignonioides · 2 states
- Southern crabapple Malus angustifolia · 14 states
- Southern live oak Quercus virginiana · 10 states
- Southern magnolia Magnolia grandiflora · 10 states
- Southern red oak Quercus falcata · 23 states
- Southern wax myrtle Morella cerifera · 8 states
- Spanish dagger Yucca aloifolia · 7 states
- Spotted beebalm Monarda punctata · 29 states
- Staghorn sumac Rhus typhina · 28 states
- Standing cypress Ipomopsis rubra · 6 states
- Starry false Solomon's seal Maianthemum stellatum · 19 states
- Steeplebush Spiraea tomentosa · 22 states
- Sticky monkeyflower Mimulus aurantiacus · 2 states
- Stiff dogwood Cornus foemina · 12 states
- Stiff greenthread Thelesperma filifolium · 1 states
- Stokes aster Stokesia laevis · 7 states
- Striped maple Acer pensylvanicum · 18 states
- Sugar maple Acer saccharum · 34 states
- Sulphur-flower buckwheat Eriogonum umbellatum · 10 states
- Sundial lupine Lupinus perennis · 28 states
- Swamp azalea Rhododendron viscosum · 15 states
- Swamp milkweed Asclepias incarnata · 37 states
- Swamp rose Rosa palustris · 27 states
- Swamp sunflower Helianthus angustifolius · 21 states
- Swamp white oak Quercus bicolor · 23 states
- Sweet Joe-Pye Eutrochium purpureum · 33 states
- Sweet birch Betula lenta · 21 states
- Sweet coneflower Rudbeckia subtomentosa · 11 states
- Sweet crabapple Malus coronaria · 20 states
- Sweet-fern Comptonia peregrina · 21 states
- Sweetbay magnolia Magnolia virginiana · 17 states
- Sweetgum Liquidambar styraciflua · 26 states
- Switchgrass Panicum virgatum · 43 states
T
- Table mountain pine Pinus pungens · 9 states
- Tall Oregon grape Mahonia aquifolium · 3 states
- Tall blazing star Liatris aspera · 26 states
- Tamarack Larix laricina · 17 states
- Tennessee featherbells Stenanthium tennesseense · 1 states
- Texas Indian paintbrush Castilleja indivisa · 5 states
- Texas bluebonnet (state flower) Lupinus texensis · 2 states
- Texas ebony Ebenopsis ebano · 1 states
- Texas mountain laurel Dermatophyllum secundiflorum · 1 states
- Texas persimmon Diospyros texana · 1 states
- Texas sacahuista Nolina texana · 1 states
- Texas star (prairie rose-gentian) Sabatia campestris · 1 states
- Threadleaf coreopsis Coreopsis verticillata · 14 states
- Three-flower melic grass Melica nitens · 17 states
- Tidy tips Layia platyglossa · 3 states
- Titi cyrilla Cyrilla racemiflora · 8 states
- Toyon Heteromeles arbutifolia · 1 states
- Trailing arbutus Epigaea repens · 24 states
- Trumpet vine Campsis radicans · 33 states
- Tufted evening primrose Oenothera caespitosa · 15 states
- Tulip tree Liriodendron tulipifera · 27 states
- Twinleaf Jeffersonia diphylla · 15 states
- Twistleaf yucca Yucca rupicola · 1 states
- Two-wing silverbell Halesia diptera · 8 states
- Twoleaf miterwort Mitella diphylla · 25 states
U
- Umbrella tree magnolia Magnolia tripetala · 17 states
- Upland larkspur Delphinium nuttallianum · 13 states
- Utah serviceberry Amelanchier utahensis · 5 states
- Utah sweetvetch Hedysarum boreale · 3 states
V
- Valley oak Quercus lobata · 1 states
- Velvet mesquite Prosopis velutina · 3 states
- Vine maple Acer circinatum · 3 states
- Virgin's bower Clematis virginiana · 27 states
- Virginia bluebells Mertensia virginica · 23 states
- Virginia chain fern Woodwardia virginica · 24 states
- Virginia creeper Parthenocissus quinquefolia · 40 states
- Virginia iris Iris virginica · 26 states
- Virginia mountain mint Pycnanthemum virginianum · 27 states
- Virginia pine Pinus virginiana · 20 states
- Virginia saltmarsh mallow Kosteletzkya pentacarpos · 11 states
- Virginia spiderwort Tradescantia virginiana · 24 states
- Virginia springbeauty Claytonia virginica · 28 states
- Virginia strawberry Fragaria virginiana · 30 states
- Virginia sweetspire Itea virginica · 19 states
W
- Wasatch penstemon Penstemon cyananthus · 4 states
- Water birch Betula occidentalis · 1 states
- Water oak Quercus nigra · 17 states
- Wax currant Ribes cereum · 2 states
- Western azalea Rhododendron occidentale · 3 states
- Western blue-eyed grass Sisyrinchium bellum · 2 states
- Western bracken fern Pteridium aquilinum · 7 states
- Western columbine Aquilegia formosa · 1 states
- Western hemlock Tsuga heterophylla · 1 states
- Western ironweed Vernonia baldwinii · 1 states
- Western redbud Cercis occidentalis · 4 states
- Western redcedar Thuja plicata · 1 states
- Western yarrow Achillea millefolium var. occidentalis · 18 states
- White ash Fraxinus americana · 35 states
- White baneberry Actaea pachypoda · 33 states
- White doll's daisy Boltonia asteroides · 16 states
- White fringetree Chionanthus virginicus · 21 states
- White heath aster Symphyotrichum ericoides var. ericoides · 26 states
- White meadowsweet Spiraea alba · 22 states
- White oak Quercus alba · 33 states
- White prairie clover Dalea candida · 1 states
- White sage Salvia apiana · 1 states
- White snakeroot Ageratina altissima · 23 states
- White spruce Picea glauca · 1 states
- White turtlehead Chelone glabra · 22 states
- White wild indigo Baptisia alba · 23 states
- Wholeleaf rosinweed Silphium integrifolium · 16 states
- Whorled milkweed Asclepias verticillata · 30 states
- Wild blue phlox Phlox divaricata · 36 states
- Wild geranium Geranium maculatum · 33 states
- Wild hyacinth (Atlantic camas) Camassia scilloides · 20 states
- Wiliwili Erythrina sandwicensis · 1 states
- Willow oak Quercus phellos · 23 states
- Winecup Callirhoe involucrata · 16 states
- Winged sumac Rhus copallinum · 30 states
- Winterfat Krascheninnikovia lanata · 12 states
- Witch-hazel Hamamelis virginiana · 33 states
- Witherod viburnum Viburnum nudum var. cassinoides · 24 states
- Wood lily Lilium philadelphicum · 28 states
- Woodland pinkroot Spigelia marilandica · 16 states
- Woolly paperflower Psilostrophe tagetina · 7 states
- Woolly pipevine Aristolochia tomentosa · 7 states
- Woollypod milkweed Asclepias eriocarpa · 1 states
- Wyoming Indian paintbrush Castilleja linariifolia · 9 states
Y
- Yaupon holly Ilex vomitoria · 11 states
- Yellow (Bush's) coneflower Echinacea paradoxa · 1 states
- Yellow bells (esperanza) Tecoma stans · 3 states
- Yellow birch Betula alleghaniensis · 21 states
- Yellow buckeye Aesculus flava · 14 states
- Yellow necklacepod Sophora tomentosa · 1 states
- Yellow passionflower Passiflora lutea · 21 states
ʻ
- ʻAhuʻawa Cyperus javanicus · 1 states
- ʻAkia Wikstroemia uva-ursi · 1 states
- ʻAkoko Chamaesyce celastroides · 1 states
- ʻIliahi alo‘e (coastal sandalwood) Santalum ellipticum · 1 states
- ʻIlieʻe Plumbago zeylanica · 1 states
- ʻĀkulikuli (sea purslane) Sesuvium portulacastrum · 1 states
- ʻŪlei Osteomeles anthyllidifolia · 1 states