U.S. County-Level Atlas of the Vascular Flora of North America
(List by Genus)

The Biota of North America Program (BONAP) maintains relatively complete phytogeographic and related botanical databases for all free-living vascular plants in North America (north of Mexico). For over four decades, BONAP has worked collaboratively with many federal and state government agencies, private groups and individual specialists across the continent to produce and edit our databases. Therefore, we feel that our county-level database has matured sufficiently to allow us to post, for the first time, all of our integrated county-level maps of the North American ferns and allies, conifers and flowering plants in one place. Although these maps must still be considered DRAFT releases, inasmuch as in 2009 alone, nearly 952,000 new county-level records were added, we wanted to provide members of the North American plant community an opportunity to view and critique all 21,500 species-level maps. BONAP plans to provide updates of these maps at regular intervals subsequent to this January 2010 initial release.

North American genera that occur within our study area, but lack specific occurrence within the 50 U.S. states, e.g., Bartsia, are not mapped.

  Citation Information

STATE COLOR KEY

COUNTY COLOR KEY

Species present in state and native

Species present and not rare

Species extinct

Species native, but adventive in state

Species present in state and exotic

Species present and rare

Species noxious

Species eradicated

Species not present in state

Species extirpated (historic)

Species exotic and present

Questionable Presence (cross-hatched)

List by Genus

List by Traditional Family

List by Modern Family

List Phylogenetically


 

A  B  C  D  E  F  G  H  I  J  K  L  M  N  O  P  Q  R  S  T  U  V  W  X  Y  Z 

 

A      
Abelia Adenostoma Alhagi Ammi Anisocoma Araujia Aruncus
Abelmoschus Adiantum Aliciella Ammophila Anisodontea Arbutus Arundina
Abies Adlumia Alisma Ammoselinum Annona Arceuthobium Arundinaria
Abildgaardia Adolphia Allamanda Amoreuxia Anoda Archontophoenix Arundo
Abronia Adonis Allenrolfea Amorpha Anoectochilus Arctagrostis Asanthus
Abrus Adoxa Alliaria Ampelaster Anredera Arctanthemum Asarum
Abutilon Aechmea Allionia Ampelodesmos Antennaria Arctium Asclepias
Acacia Aegilops Allium Ampelopsis Anthemis Arctomecon Asimina
Acaena Aegiphila Allolepis Amphiachyris Anthenantia Arctophila Asparagus
Acalypha Aegopodium Allophyllum Amphianthus Anthephora Arctostaphylos Asperugo
Acamptopappus Aegopogon Allophylus Amphibromus Anthoxanthum Arctotheca Asperula
Acanthocereus Aeluropus Alloteropsis Amphicarpaea Anthriscus Arctotis Asphodelus
Acanthomintha Aeonium Allotropa Amphicarpum Anthurium Ardisia Aspicarpa
Acanthoscyphus Aerva Allowissadula Amphipappus Anthyllis Arenaria Aspidotis
Acanthospermum Aeschynomene Almutaster Amphitecna Antiaris Arenga Asplenium
Acanthus Aesculus Alnus Amsinckia Anticlea Arethusa Astelia
Acer Aethusa Alocasia Amsonia Antidesma Argemone Aster
Achillea Afrocarpus Aloe Amyris Antigonon Argentina Astilbe
Achlys Agalinis Alopecurus Anacyclus Antiphytum Argusia Astragalus
Achnatherum Agapanthus Alophia Ananas Antirrhinum Argyranthemum Astranthium
X Achnella Agarista Aloysia Anaphalis Anulocaulis X Argyrautia Astrebla
Achyrachaena Agastache Alphitonia Anarrhinum Apacheria Argyreia Astrolepis
Achyranthes Agave Alpinia Anchusa Apera Argyrochosma Astrophytum
Achyronychia Agdestis Alstonia Ancistrocactus Aphanes Argyroxiphium Asyneuma
Acicarpha Ageratina Alstroemeria Ancistrocarphus Aphanisma Argythamnia Asystasia
Acinos Ageratum Alternanthera Andira Aphanostephus Arida Atamisquea
Acleisanthes Aglaonema Althaea Andrachne Aphelandra Ariocarpus Athyrium
Acmella Agnorhiza Alvaradoa Andrographis Aphragmus Arisaema Athysanus
Acoelorraphe Agoseris Alysicarpus Andromeda Apiastrum Aristea Atrichoseris
Aconitum Agrimonia Alyssum Andropogon Apios Aristida Atriplex
Aconogonon X Agropogon Alyxia Androsace Apium Aristocapsa Atropa
Acorus Agropyron Amaranthus Androstephium Aplectrum Aristolochia Aubrieta
Acourtia Agrostemma Amaryllis Anelsonia Apluda Aristotelia Aucuba
Acrachne Agrostis Amauriopsis Anemia Apocynum Armeria Aureolaria
Acrocomia Ailanthus Amauropelta Anemone Apodanthera Armoracia Aurinia
Acrostichum Aira Amberboa Anemopsis Aponogeton Arnica Austrodanthonia
Actaea Ajuga Amblyolepis Anethum Aptenia Arnoglossum Avena
Actinidia Akebia Amblyopappus Angadenia Apteria Arnoseris Avenula
Actinostachys Albizia Ambrosia Angelica Aquilegia Arrhenatherum Avicennia
Adelia Alcea Amelanchier Angelonia Arabidopsis Artabotrys Axonopus
Adenanthera Alchemilla X Amelasorbus Angiopteris Arabis Artemisia Axyris
Adenocaulon Alectryon Amelichloa Angophora Arachis Arthraxon Ayenia
Adenophorus Aletes Amerorchis Anisacanthus Arachniodes Arthrocnemum Azolla
Adenophyllum Aletris Amianthium Aniseia Aralia Arthrostemma  
Adenostemma Aleurites Ammannia Anisocarpus Araucaria Arum  
             
       
B
           
Baccharis Batesimalva Besseya Bletia Bothriochloa Braya Bryonia
Bacopa Batis Beta Bletilla Bothriospermum Brazoria Buchnera
Bahia Bauhinia Betula Bloomeria Botrychium Brexia Bucida
Bahiopsis Bebbia Bidens Blumea Botrypus Breynia Buckleya
Baileya Beckmannia Bifora Blutaparon Bouchea Brickellia Buddleja
Baldellia Begonia Bigelowia Blysmopsis Bouchetia Brickelliastrum Buglossoides
Balduina Bejaria Bignonia Blyxa Bougainvillea Brighamia Bulbophyllum
Ballota Bellardia Billbergia Bobea Bourreria Brintonia Bulbostylis
Balsamorhiza Bellis Billieturnera Bocconia Bouteloua Briza Bunias
Baltimora Beloglottis Bischofia Boechera Bouvardia Brodiaea Bupleurum
Bambusa Benincasa Bismarckia Boehmeria Bowlesia Bromelia Burmannia
Banksia Benitoa Bistorta Boerhavia Boykinia Bromidium Bursera
Baptisia Bensoniella Bituminaria Bolandra Brachychiton Bromus Butia
Barbarea Berberis Bixa Boltonia Brachyelytrum Brongniartia Butomus
Barkleyanthus Berchemia Blechnum Bombycilaena Brachypodium Brosimum Buxus
Barleria Bergerocactus Blechum Bommeria Brachystigma Broussaisia Byrsonima
Bartlettia Bergia Blennosperma Bonamia Bradburia Broussonetia  
Bartonia Berkheya Blepharidachne Bonellia Brandegea Browallia  
Basella Berlandiera Blepharipappus Bontia Brasenia Brugmansia  
Basiphyllaea Bernardia Blepharizonia Borago Brasiliopuntia Bruguiera  
Bassia Berteroa Blepharoneuron Borrichia Brassia Brunnera  
Bastardia Berula Blephilia Boschniakia Brassica Brunnichia  
             
 
      
C
           
Cabomba Cannabis Celosia Chenopodium Cleomella Coprosma Cryptostegia
Cacaliopsis Canotia Celtis Chevreulia Clermontia Coptis Cryptotaenia
Caesalpinia Caperonia Cenchrus Chilopsis Clerodendrum Corallorhiza Ctenitis
Cajanus Capnoides Centaurea Chimaphila Clethra Corchorus Ctenium
Cakile Capparis Centaurium Chiococca Clidemia Cordia Ctenolepis
Caladium Capraria Centella Chionanthus Cliftonia Cordylanthus Cucumis
Calamagrostis Capsella Centipeda Chionodoxa Clinopodium Cordyline Cucurbita
X Calammophila Capsicum Centranthus Chionophila Clintonia Corema Cudrania
Calamovilfa Caragana Centratherum Chloracantha Clitoria Coreocarpus Cullen
Calandrinia Cardamine Centromadia Chloris Clusia Coreopsis Cuminum
Calathea Cardaria Centrosema Chlorocrambe Cneoridium Corethrogyne Cuniculotinus
Calendula Cardiocrinum Centrostegia Chlorogalum Cnidium Coriandrum Cunila
Calepina Cardionema Cephalanthera Chlorophytum Cnidoscolus Corispermum Cunninghamia
Calibrachoa Cardiospermum Cephalanthus Choisya Coccinia Cornus Cupania
California Carduus Cephalaria Chondrilla Coccocypselum Cornutia Cupaniopsis
Calla Carex Cephalotaxus Chorisiva Coccoloba Coronilla Cuphea
Callaeum Carica Cerastium Chorispora Coccothrinax Coronopus Cupressus
Calliandra Carissa Ceratiola Chorizanthe Cocculus Corrigiola Curculigo
Callicarpa Carlina Ceratocephala Christella Cochlearia Cortaderia Curcuma
Callirhoe Carlowrightia Ceratonia Chromolaena Cocos Corydalis Cuscuta
Callisia Carlquistia Ceratophyllum Chrozophora Codariocalyx Corylus Cusickiella
Callistemon Carminatia Ceratopteris Chrysactinia Coeloglossum Corymbia Cutandia
Callistephus Carmona Ceratostigma Chrysanthemoides Coelorachis Corynephorus Cyanea
Callistopteris Carnegiea Ceratotheca Chrysanthemum Coffea Corynocarpus Cyanthillium
Callitriche Carpenteria Cercidiphyllum Chrysobalanus Coincya Coryphantha Cyathea
Callitris Carphephorus Cercis Chrysogonum Coix Cosmos Cycas
Calluna Carphochaete Cercocarpus Chrysolepis Cojoba Costus Cyclachaena
Calocedrus Carpinus Cereus Chrysoma Colchicum Cota Cycladenia
Calochortus Carpobrotus Cestrum Chrysophyllum Coleanthus Cotinus Cyclanthera
Caloncoba Carthamus Cevallia Chrysopogon Coleogyne Cotoneaster Cycloloma
Calophyllum Carum Chaenactis Chrysopsis Collinsia Cottea Cyclopogon
Calopogon Carya Chaenomeles Chrysosplenium Collinsonia Cotula Cyclosorus
Calopogonium Caryopteris Chaenorhinum Chrysothamnus Collomia Cotyledon Cyclospermum
Calotis Caryota Chaerophyllum Cibotium Colocasia Coursetia Cydista
Calotropis Casasia Chaetadelpha Cicendia Cologania Crambe Cydonia
Caltha Casearia Chaetopappa Cicer Colubrina Cranichis Cylindropuntia
Calycadenia Cassia Chaiturus Cichorium Columbiadoria Crassocephalum Cymbalaria
Calycanthus Cassiope Chamaebatia Cicuta Colutea Crassula Cymbopogon
Calycera Cassytha Chamaebatiaria Cienfuegosia Comandra Crataegus Cymodocea
Calycocarpum Castanea Chamaechaenactis Cinchona Comarostaphylis Crepis Cymophora
Calycoseris Castela Chamaecrista Cinna Comarum Crescentia Cymophyllus
Calydorea Castilleja Chamaecyparis Cinnamomum Commelina Cressa Cymopterus
Calylophus Casuarina Chamaecytisus Circaea Commicarpus Crinum Cynanchum
Calypso Catabrosa Chamaedaphne Cirsium Comptonia Crocidium Cynara
Calyptocarpus Catalpa Chamaedorea Cissampelos Condalia Crocosmia Cynodon
Calyptranthes Catapodium Chamaelirium Cissus Conicosia Crocus Cynoglossum
Calystegia Catesbaea Chamaemelum Cistanthe Conimitella Croomia Cynoglottis
Camassia Catharanthus Chamaerhodos Cistus Coniogramme Croptilon Cynosciadium
Camelina Cathestecum Chamaesaracha Citharexylum Conioselinum Crossopetalum Cynosurus
Camellia Catopsis Chamaesyce Citrullus Conium Crossosoma Cyperus
Camissonia Caucalis Chamelaucium Citrus Conocarpus Crotalaria Cypholophus
Campanula Caulanthus Chamerion Cladanthus Conoclinium Croton Cyphomeris
Campanulastrum Caulophyllum Chapmannia Cladium Conopholis Crucianella Cypripedium
Camphorosma Caulostramina Chaptalia Cladoraphis Conradina Cruciata Cypselea
Campsis Cayaponia Charpentiera Cladrastis Conringia Crupina Cyrilla
Campylocentrum Cayratia Chasmanthe Claoxylon Consolea Crusea Cyrtandra
Campyloneurum Ceanothus Chasmanthium Clappia Consolida Crypsis Cyrtomium
Canadanthus Cecropia Cheilanthes Clarkia Constancea Cryptantha Cyrtopodium
Canavalia Cedrela Cheirodendron Claytonia Convallaria Cryptocarya Cystopteris
Canbya Cedronella Cheiroglossa Cleistes Convolvulus Cryptocoryne Cytisus
Canella Cedrus Chelidonium Clematis Conyza Cryptogramma  
Canna Celastrus Chelone Cleome Cooperia Cryptomeria  
             
       
D            
Dacrycarpus Datisca Deparia Dichrostachys Dinebra Ditrysinia Dryas
Dactylis Datura Deschampsia Dicksonia Dioclea Dittrichia Drymaria
Dactyloctenium Daucosma Descurainia Dicliptera Diodia Dodecahema Drymocallis
Dactylorhiza Daucus Desmanthus Dicoria Dionaea Dodecatheon Dryopetalon
Dahlia Davallia Desmodium Dicranocarpus Dioscorea Dodonaea Dryopteris
Dalbergia Decodon Deutzia Dicranopteris Diospyros Doellingeria Drypetes
Dalea Decumaria Diamorpha Dictamnus Diphasiastrum Doodia Dubautia
Dalechampia Dedeckera Dianella Didiplis Diphylleia Dopatrium Duchesnea
Dalibarda Deeringothamnus Dianthus Dieffenbachia Diphysa Doronicum Dudleya
Damasonium Deinandra Diapensia Diellia Diplacus Dorstenia Dulichium
Danaea Deiregyne Diaperia Diervilla Diplazium Doryopteris X Dupoa
Danthonia Delairea Diarrhena Dieteria Diplopterygium Douglasia Dupontia
Daphne Delissea Dicentra Digera Diplotaxis Dovyalis Duranta
Darlingtonia Delonix Dicerandra Digitalis Dipogon Downingia Dyckia
Darmera Delosperma Dichaetophora Digitaria Dipsacus Draba Dypsis
Dasiphora Delphinium Dichanthelium Dillenia Dirca Dracocephalum Dyschoriste
Dasistoma Dendrocalamus Dichanthium Dimeresia Dissanthelium Dracopis Dysodiopsis
Dasylirion Dendrolycopodium Dichelachne Dimerocostus Dissochondrus Dracunculus Dysphania
Dasynotus Dendromecon Dichelostemma Dimocarpus Dissotis Draperia Dyssodia
Dasyochloa Dendrophylax Dichondra Dimorphocarpa Distichlis Drosanthemum  
Dasypyrum Dennstaedtia Dichromanthus Dimorphotheca Dithyrea Drosera  
             
             
E
      
Eastwoodia Ehrendorferia X Elyleymus Enydra Eremopyrum Eryngium Euphorbia
Eatonella Ehretia Elymus Ephedra Eriastrum Erysimum Euphrasia
Ebenopsis Ehrharta Elytraria Epidendrum Erica Erythrina Eurya
Ecballium Eichhornia Embelia Epifagus Ericameria Erythronium Eurybia
Echeandia Elaeagnus Emex Epigaea Erigenia Escallonia Euryops
Echeveria Elaeis Emilia Epilobium Erigeron Eschscholzia Eurytaenia
Echinacea Elaeocarpus Emmenanthe Epimedium Eriobotrya Escobaria Eustachys
Echinocactus Elaphoglossum Emorya Epipactis Eriocaulon Esenbeckia Eustoma
Echinocereus Elatine Empetrum Epiphyllum Eriochloa Etlingera Euthamia
Echinochloa Eleocharis Encelia Epipremnum Eriodictyon Eubotrys Eutrema
Echinocystis Elephantopus Enceliopsis Epithelantha Eriogonum Eucalyptus Eutrochium
Echinodorus Eleusine Enchylaena Epixiphium Erioneuron Eucephalus Evolvulus
Echinomastus Eleutherococcus Encyclia Equisetum Eriophorum Euchiton Exocarpos
Echinopepon Elionurus Endodeca Eragrostis Eriophyllum Euclidium Exochorda
Echinops Elliottia Enemion Eranthemum Erithalis Eucnide Exostema
Echites Ellisia Engelmannia Eranthis Eritrichium Eucommia Exothea
Echium Elmera Enneapogon Erechtites Ernodea Eucrypta Eysenhardtia
Eclipta Elodea Entada Eremalche Erodium Eugenia  
Edgeworthia Elsholtzia Enterolobium Eremochloa Errazurizia Eulophia  
Egeria Eltroplectris Enteropogon Eremocrinum Eruca Euonymus  
Egletes X Elyhordeum Entolasia Eremogone Erucastrum Eupatorium  
             
             
F
      
Facelis Fendlera Filipendula Flindersia Forsythia Fraxinus Fumaria
Fagonia Fendlerella Fimbristylis Floerkea Fortunella Freesia Funastrum
Fagopyrum Ferocactus Fingerhuthia Florestina Fothergilla Fremontodendron Furcraea
Fagus Festuca Firmiana Flourensia Fouquieria Freycinetia  
Falcaria X Festulolium Fitchia Flueggea Fragaria Fritillaria  
Falcataria Ficaria Flacourtia Flyriella Frangula Froelichia  
Fallopia Ficus Flaveria Foeniculum Frankenia Fryxellia  
Fallugia Filago Fleischmannia Fontanesia Franklinia Fuchsia  
Fatoua Filicium Flemingia Forestiera Frasera Fuirena  
             
             
G
      
Gadellia Garberia Geocarpon Glaucium Glycyrrhiza Graptopetalum Gutierrezia
Gagea Gardenia Geocaulon Glaucocarpum Glyptopleura Graptophyllum Guzmania
Gahnia Garnotia Geraea Glaux Gmelina Gratiola Gyminda
Gaillardia Garrya Geranium Glebionis Gnaphalium Grayia Gymnadenia
Galactia Gastridium Gerbera Glechoma Gochnatia Grevillea Gymnanthes
Galanthus Gaudinia Geum Gleditsia Gomphrena Grewia Gymnocarpium
Galax Gaultheria Gibasis Glehnia Gonocarpus Grindelia Gymnocladus
Galeandra Gaura Gilia Glinus Gonocormus Grusonia Gymnopogon
Galearis Gaylussacia Giliastrum Gliricidia Goodmania Guaiacum Gymnosperma
Galega Gayophytum Gillenia Globba Goodyera Guapira Gymnosteris
Galenia Gazania Gilmania Glochidion Gordonia Guardiola Gynura
Galeopsis Gelsemium Ginkgo Gloriosa Gossypianthus Guettarda Gypsophila
Galinsoga Genista Gisekia Glossopetalon Gossypium Guilleminea  
Galium Genistidium Githopsis Glossostigma Gouania Guillenia  
Galphimia Gentiana Gladiolus Glyceria Govenia Guizotia  
Gambelia Gentianella Glandularia Glycine Grammitis Gundlachia  
Gamochaeta Gentianopsis Glandulicactus Glycosmis Graphephorum Gunnera  
             
             
H
      
Habenaria Harpullia Helietta Hesperis Hippobroma Hornungia Hydrolea
Habranthus Harrimanella Heliocarpus Hesperocallis Hippocratea Horsfordia Hydrophyllum
Hackelia Harrisella Heliomeris Hesperochiron Hippocrepis Hosta Hygrophila
Hackelochloa Harrisia Heliopsis Hesperocnide Hippomane Hottonia Hylocereus
Haematoxylum Hartwrightia Heliotropium Hesperolinon Hippophae Houstonia Hylotelephium
Hainardia Hasteola Helleborus Hesperomannia Hippuris Houttuynia Hymenachne
Halenia Hastingsia Helminthotheca Hesperostipa Hiptage Hovenia Hymenocallis
Halesia Havardia Helonias Hesperoyucca Hirschfeldia Howellia Hymenopappus
Halimium Hazardia Hemarthria Heteranthemis Hoffmannseggia Howelliella Hymenophyllum
Halimodendron Hebe Hemerocallis Heteranthera Hoheria Hoya Hymenothrix
Halimolobos Hecastocleis Hemigraphis Heterocentron Hoita Hudsonia Hymenoxys
Halodule Hechtia Hemitomes Heterocodon Holacantha Hulsea Hyoscyamus
Halogeton Hedeoma Hemizonella Heterodraba Holcus Hulteniella Hyparrhenia
Halophila Hedera Hemizonia Heteromeles Hollisteria Humulus Hypecoum
Haloragis Hedosyne Henrya Heteropogon Holmgrenanthe Hunnemannia Hypelate
Hamamelis Hedychium Hepatica Heterosavia Holmgrenia Hunzikeria Hypericum
Hamatocactus Hedyotis Heracleum Heterosperma Holmskioldia Huperzia Hypochaeris
Hamelia Hedypnois Herbertia Heterotheca Holocarpha Hura Hypoestes
Haplocarpha Hedysarum Herissantia Heuchera Holodiscus Hyacinthoides Hypolepis
Haploesthes Heimia Heritiera Hexalectris Holosteum Hyacinthus Hypoxis
Haplophyton Helenium Hermannia Hexastylis Holozonia Hybanthus Hyptis
Haplopteris Helianthella Hermbstaedtia Hibiscadelphus Homalanthus Hydrangea Hyssopus
Haplostachys Helianthemum Herniaria Hibiscus Honckenya Hydrastis  
Harbouria Helianthus Herrickia Hieracium Hopia Hydrilla  
Harmonia Helichrysum Hesperaloe Hilaria Hordeum Hydrocharis  
Harpagonella Heliconia Hesperevax Hillebrandia Horkelia Hydrocleys  
Harperocallis Helictotrichon Hesperidanthus Hippeastrum Horkeliella Hydrocotyle  
             
             
 I      
Iberis Illecebrum Inula Ipomopsis Ismelia Isotrema Ixia
Ibervillea Illicium Iodanthus Iresine Isocarpha Isotria Ixophorus
Ibicella Impatiens Ionactis Iris Isocoma Itea Ixora
Idahoa Imperata Ionopsidium Isachne Isodendrion Iva  
Ilex Indigofera Ionopsis Isatis Isoetes Ivesia  
Iliamna Inga Ipomoea Ischaemum Isolepis Ixeris  
             
             
J
      
Jaborosa Jacquinia Jamesianthus Jasminum Jeffersonia Joinvillea Juniperus
Jacaranda Jaegeria Janusia Jatropha Jensia Jovibarba Justicia
Jacobaea Jaltomata Jarava Jaumea Jepsonia Juglans  
Jacquemontia Jamesia Jasione Jefea Johanneshowellia Juncus  
             
             
K
      
Kalanchoe Kanaloa Keysseria Kobresia Kolkwitzia Krigia Kyllinga
Kalimeris Karwinskia Khaya Koeberlinia Korthalsella Krugiodendron  
Kallstroemia Keckiella Kickxia Koeleria Kosteletzkya Kumlienia  
Kalmia Kelloggia Knautia Koelreuteria Krameria Kummerowia  
Kalmiopsis Kelseya Kniphofia Koenigia Krapovickasia Kunzea  
Kalopanax Kerria Koanophyllon Kokia Krascheninnikovia Kyhosia  
             
             
L
      
Lablab Lappula Lellingeria Leuciva Limnosciadium Livistona Luma
Labordia Lapsana Lemna Leucocrinum Limonium Lloydia Lumnitzera
Laburnum Lapsanastrum Lenophyllum Leucojum Limosella Lobelia Lunaria
Lachnagrostis Larix Lens Leucophyllum Linanthus Lobularia Lupinus
Lachnanthes Larrea Leonotis Leucophysalis Linaria Loeflingia Luziola
Lachnocaulon Lasiacis Leontodon Leucopoa Lindera Loeselia Luzula
Lackeya Lasianthaea Leonurus Leucospora Lindernia Loeseliastrum Lychnis
Lactuca Lasiospermum Lepanthopsis Leucothoe Lindheimera Logfia Lycianthes
Laelia Lastarriaea Lepechinia Levisticum Lindsaea Loiseleuria Lycium
Laennecia Lasthenia Lepianthes Lewisia X Lindsaeosoria Lolium Lycopodiella
Lagascea Lathrocasis Lepidium Leycesteria Linnaea Lomariopsis Lycopodium
Lagenaria Lathyrus Lepidospartum X Leydeum Linum Lomatium Lycopus
Lagerstroemia Launaea Lepisorus Leymus Liparis Lomatogonium Lycoris
Lagophylla Laurus Leptarrhena Liatris Lipocarpha Lonchocarpus Lycurus
Lagotis Lavandula Leptecophylla Libertia Lipochaeta Lonicera Lygodesmia
Laguncularia Lavatera Leptochloa Licania Lippia Lophiola Lygodium
Lagurus Layia Leptopus Licaria Liquidambar Lophophora Lyonia
Lallemantia Leavenworthia Leptosiphon Ligularia Liriodendron Lophospermum Lyonothamnus
Lamarckia Lechea Leptospermum Ligusticum Liriope Lophostemon Lyrocarpa
Lamiastrum Ledum Lepturus Ligustrum Listera Lorandersonia Lysichiton
Lamium Leea Lepuropetalon Lilaea Lithocarpus Loropetalum Lysiloma
Lampranthus Leersia Lepyrodiclis Lilaeopsis Lithodora Lotononis Lysimachia
Lamprocapnos Legenere Lespedeza Lilium Lithophragma Lotus Lythrum
Landoltia Legousia Lessingia Limnanthes Lithospermum Ludwigia  
Langloisia Leibnitzia Leucaena Limnobium Lithrea Luetkea  
Lantana Leiophyllum Leucanthemella Limnodea Litsea Luffa  
Laportea Leitneria Leucanthemum Limnophila Littorella Luina  
             
             
M
      
Mabrya Malperia Mauranthemum Melothria Microseris Mollugo Mucuna
Macadamia Malpighia Maxillaria Menispermum Microsorum Moluccella Muehlenbeckia
Macaranga Malus Mayaca Menodora Microstachys Momordica Muhlenbergia
Macbridea Malva Maytenus Mentha Microstegium Monanthochloe Muilla
Macfadyena Malvastrum Mazus Mentzelia Microsteris Monarda Munroa
Machaeranthera Malvaviscus Mecardonia Menyanthes Microthelys Monardella Munroidendron
Machaerina Malvella Mecodium Menziesia Microthlaspi Moneses Muntingia
Macleaya Mammillaria Meconella Mercurialis Mikania Monnina Munzothamnus
Maclura Mancoa Meconopsis Merremia Milium Monochoria Murdannia
Macradenia Manfreda Medeola Mertensia Milla Monolepis Murraya
Macranthera Mangifera Medicago Mesadenus Millettia Monolopia Musa
Macromeria Manihot Medinilla Mesembryanthemum Mimetanthe Monoptilon Muscari
Macroptilium Manilkara Meehania Mespilus Mimosa Monotropa Musineon
Macrothelypteris Mantisalca Megathyrsus Metaplexis Mimulus Monotropsis Myagrum
Macrotyloma Marah Melaleuca Metopium Mimusops Monstera Mycelis
Madia Maranta Melampodium Metrosideros Minuartia Montanoa Myoporum
Magnolia Marattia Melampyrum Meximalva Mirabilis Montia Myosotis
Mahonia Margaranthus Melanthera Mibora Miscanthus Moorochloa Myosoton
Maianthemum Marina Melastoma Miconia Misopates Moraea Myosurus
Malachra Marrubium Melia Micranthemum Mitchella Morella Myrcianthes
Malacomeles Marshallia Melianthus Microchloa Mitella Morelotia Myrica
Malacothamnus Marsilea Melica Microgramma Mitracarpus Morinda Myriophyllum
Malacothrix Matelea Melicoccus Microlaena Mitreola Moringa Myrrhis
Malaxis Matricaria Melicope Microlepia Modiola Morrenia Myrsine
Malcolmia Matteuccia Melilotus Micromonolepis Moehringia Mortonia Myrtus
Malephora Matthiola Melinis Micropolypodium Moenchia Morus  
Mallotus Maurandella Melissa Micropsis Mohavea Mosla  
Malosma Maurandya Melochia Micropus Molinia Mucronea  
             
             
N
      
Najas Nectandra Neolloydia Nerisyrenia Neviusia Nolina Nototrichium
Nama Nectouxia Neonesomia Nerium Neyraudia Nomaphila Nuphar
Nandina Neeragrostis Neonotonia Nesaea Nicandra Nonea Nuttallanthus
Nanozostera Nelumbo Neoparrya Neslia Nicolletia Nopalea Nyctaginia
Napaea Nemacaulis Neostapfia Nesoluma Nicotiana Noronhia Nymphaea
Narcissus Nemacladus Neotorularia Nestegis Nierembergia Nothocalais Nymphoides
Nardus Nemastylis Nepeta Nestotus Nigella Nothocestrum Nyssa
Narthecium Nemopanthus Nephrolepis Nestronia Nipponanthemum Nothochelone  
Nassella Nemophila Nephrophyllidium Neurodium Nissolia Notholaena  
Nasturtium Neobeckia Neptunia Neurolaena Nitrophila Nothoperanema  
Navarretia Neogaerrhinum Neraudia Nevada Noccaea Nothoscordum  
             
             
O
      
Obolaria Oenothera Oncosiphon Oplopanax Ornithopus Osmadenia Oxypolis
Ochna Okenia Onobrychis Opuntia Ornithostaphylos Osmanthus Oxyrhynchus
Ochrosia Oldenlandia Onoclea Orbexilum Orobanche Osmorhiza Oxyria
Ocimum Oldenlandiopsis Ononis Orcuttia Orochaenactis Osmunda Oxyspora
Oclemena Olea Onopordum Oreobolus Orogenia Osteomeles Oxystylis
Odontites Oligomeris Onosmodium Oreochrysum Orontium Osteospermum Oxytenia
Odontonema Oligoneuron Oonopsis Oreonana Orthilia Ostrya Oxytheca
Odontosoria Olneya Operculina Oreostemma Orthocarpus Otholobium Oxytropis
Odontostomum Olsynium Ophioderma Oreoxis Orychophragmus Ottelia  
Oeceoclades Omalotheca Ophioglossum Origanum Oryctes Oxalis  
Oemleria Omphalodes Ophiopogon Orlaya Oryza Oxycaryum  
Oenanthe Oncidium Oplismenus Ornithogalum Oryzopsis Oxydendrum  
             
             
P
      
Pachycereus Pediomelum Phaius Piloblephis Pleiacanthus Ponthieva Pseudorontium
Pachyrhizus Peganum Phalacroseris Pilosocereus Pleioblastus Populus Pseudosasa
Pachysandra Pelargonium Phalaris Pilostyles Pleiostachya Poranopsis Pseudostellaria
Packera Pelexia Phanerophlebia Pilularia Pleomele Porophyllum Pseudotsuga
Paederia Pellaea Phanopyrum Pimenta Pleopeltis Porterella Psidium
Paeonia Peltandra Pharus Pimpinella Pleuraphis Portulaca Psilactis
Palafoxia Peltophorum Phaseolus Pinanga Pleuricospora Potamogeton Psilocarphus
Palhinhaea Peniocereus Phaulothamnus Pinaropappus Pleurocoronis Potentilla Psilostrophe
Palisota Pennellia Phegopteris Pinckneya Pleuropogon Poteridium Psilotum
Paliurus Pennisetum Phellodendron Pinellia Pleurothallis Pouteria Psoralidium
Panax Penstemon Phemeranthus Pinguicula Pluchea Pouzolzia Psorothamnus
Pancratium Pentachaeta Philadelphus Pinus Plumbago Pratia Psychotria
Pandanus Pentaglottis Philodendron Piper Plumeria Praxelis Psydrax
Panicum Pentagramma Phippsia Piperia Pneumatopteris Premna Ptelea
Panphalea Pentalinon Phlebodium Piptatherum Poa Prenanthella Pteralyxia
Papaver Pentas Phleum Piptochaetium Podagrostis Prenanthes Pteridium
Pappophorum Penthorum Phlomis Pipturus Podistera Prescotia Pteris
Paraderris Pentodon Phlox Piriqueta Podocarpus Primula Pterocarya
Parapholis Pentzia Phoebanthus Piscidia Podophyllum Pritchardia Pterocaulon
Parasenecio Peperomia Phoenicaulis Pisonia Podostemum Priva Pteroglossaspis
Paraserianthes Peraphyllum Phoenix Pistacia Podranea Proatriplex Pterolepis
Parathelypteris Pereskia Pholisma Pistia Pogogyne Proboscidea Pterospora
Parentucellia Perezia Pholistoma Pisum Pogonarthria Procris Pterostegia
Parietaria Pericallis Phoradendron Pithecellobium Pogonia Prosartes Ptilagrostis
Parkinsonia Pericome Phormium Pithecoctenium Polanisia Proserpinaca Ptilimnium
Parnassia Perideridia Photinia Pittosporum Polemonium Prosopis Ptychosperma
Paronychia Perilla Phragmites Pityopsis Poliomintha Prosthechea Puccinellia
Parrya Peripleura Phryma Pityopus Polyalthia Prunella Pueraria
Parryella Periploca Phyla Pityrogramma Polycarpaea Prunus Pulicaria
Parthenice Peristylus Phyllanthus Plagiobothrys Polycarpon Psacalium Pulmonaria
Parthenium Perityle Phyllodoce Planera Polycnemum Psathyrostachys Pulsatilla
Parthenocissus Perrottetia Phyllospadix Plantago Polyctenium Psathyrotes Punica
Pascalia Persea Phyllostachys Platanthera Polygala Psathyrotopsis Purshia
Pascopyrum Persicaria Phyllostegia Platanus Polygonatum Pseudabutilon Pycnanthemum
Paspalidium Petalonyx Phymatosorus Plateilema Polygonella Pseudelephantopus Pyracantha
Paspalum Petasites Physalis Platycerium Polygonum X Pseudelymus Pyrola
Passiflora Peteria Physaria Platycladus Polymnia Pseuderanthemum Pyrostegia
Pastinaca Petitia Physocarpus Platycodon Polypodium Pseudobahia Pyrrhopappus
Paulownia Petiveria Physostegia Platydesma Polypogon Pseudoclappia Pyrrocoma
Pavonia Petradoria Phytolacca Platymiscium Polypremum Pseudocydonia Pyrularia
Paxistima Petrea Picea Platyschkuhria Polyscias Pseudofumaria Pyrus
Paysonia Petrophyton Pickeringia Platystemon Polystachya Pseudognaphalium Pyxidanthera
Pecluma Petrorhagia Picradeniopsis Platystigma Polystichum Pseudogynoxys  
Pectis Petroselinum Picramnia Platythelys Polytaenia Pseudolycopodiella  
Pectocarya Petunia Picris Plectocephalus Polytrias Pseudolysimachion  
Pedicularis Peucedanum Picrothamnus Plectranthus Pomaria Pseudophegopteris  
Pedilanthus Peucephyllum Pieris Plectritis Poncirus Pseudophoenix  
Pediocactus Phacelia Pilea Pleea Pontederia Pseudoroegneria  
             
             
Q
      
Quercus Quincula Quisqualis        
             
             
R
      
Radermachera Rayjacksonia Rhabdadenia Rhodiola Ricinus Rosmarinus Rumohra
Radiola Redfieldia Rhagadiolus Rhododendron Rigiopappus Rostraria Rupertia
Rafinesquia Reichardia Rhamnus Rhododon Rivina Rotala Ruppia
Raillardella Reimarochloa Rhapidophyllum Rhodomyrtus Robinia Rottboellia Russelia
Rainiera Remirea Rhaponticum Rhodotypos Roemeria Roystonea Ruta
Randia Remya Rheum Rhus Roldana Rubia Rytidosperma
Ranunculus Reseda Rhexia Rhynchosia Romanzoffia Rubus  
Raphanus Retama Rhinanthus Rhynchosida Romneya Rudbeckia  
Rapistrum Reverchonia Rhipsalis Rhynchospora Romulea Ruellia  
Ratibida Reynoldsia Rhizophora Ribes Rorippa Rugelia  
Rauvolfia Reynosia Rhodanthe Richardia Rosa Rumex  
             
             
S
      
Sabal Sauropus Sclerocarpus Severinia Sonchus Staphylea Stuckenia  
Sabatia Saururus Sclerochloa Seymeria Sophora Stebbinsoseris Stylisma
Saccharum Saussurea Sclerolepis Shepherdia Sophronanthe Steinchisma Stylocline
Sacciolepis Sauvagesia Sclerolinon Sherardia Sorbaria Stellaria Stylodon
Sachsia Saxifraga Scleropogon Shinnersia X Sorbaronia Stemodia Stylomecon
Sadleria Saxifragopsis Scoliopus Shinnersoseris Sorbus Stenandrium Stylophorum
Sageretia Scabiosa Scolochloa Shortia Sorghastrum Stenanthium Stylosanthes
Sagina Scabrethia Scolymus Shoshonea Sorghum Stenaria Styphnolobium
Sagittaria Scaevola Scoparia Sibara Sorindeia Stenocereus Styrax
Sairocarpus Scandix Scopulophila Sibaropsis Sparaxis Stenochlaena Suaeda
Salazaria Sceptridium Scorpiurus Sibbaldia Sparganium Stenogonum Subularia
Salicornia Schaefferia Scorzonera Sibbaldiopsis Spartina Stenogyne Succisa
Salix Schedonnardus Scribneria Sicyos Spartium Stenorrhynchos Succisella
Salpichroa Schefflera Scrophularia Sicyosperma Spathodea Stenotaphrum Suckleya
Salpiglossis Scheuchzeria Scutellaria Sida Spathoglottis Stenotus Suksdorfia
Salsola Schiedea Sebastiania Sidalcea Spergula Stephanandra Sullivantia
Saltugilia Schiedeella Secale Sidastrum Spergularia Stephania Suriana
Salvia Schinus Sechium Sideritis Spermacoce Stephanomeria Swallenia
Salvinia Schisandra Securigera Sideroxylon Spermolepis Sterculia Swertia
Samanea Schismus Sedella Sidotheca Sphaeralcea Sternbergia Swietenia
Sambucus Schistophragma Sedum Sigesbeckia Sphaerocionium Stevia Syagrus
Samolus Schizachne Selaginella Silene Sphaeromeria Stewartia Symphoricarpos
Sanchezia Schizachyrium Selenia Silphium Sphaerophysa Sticherus Symphyotrichum
Sandoricum Schizaea Selenicereus Silybum Sphagneticola Stictocardia Symphytum
Sanguinaria Schizanthus Selinum Simarouba Sphenoclea Stigmaphyllon Symplocarpus
Sanguisorba Schizophragma Sempervivum Simmondsia Sphenopholis Stillingia Symplocos
Sanicula Schizostachyum Senecio Simsia Sphenosciadium Stipa Synandra
Sansevieria Schkuhria Senna Sinapis Sphinctospermum Stipulicida Syncarpia
Santalum Schlumbergera Sequoia Sisymbrium Spigelia Stokesia Synedrella
Santolina Schoenocaulon Sequoiadendron Sisyrinchium Spinacia Streblus Syngonanthus
Sanvitalia Schoenocrambe Serenoa Sium Spinulum Streptanthella Syngonium
Sapindus Schoenolirion Sericocarpus Smallanthus Spiraea Streptanthus Synthlipsis
Sapium Schoenoplectus Serissa Smelowskia Spiranthes Streptopus Synthyris
Saponaria Schoenus Serjania Smilax Spirodela Streptosolen Syntrichopappus
Sarcobatus Schoepfia Serpocaulon Smyrnium Spondias Striga Syringa
Sarcocornia Schwalbea Serratula Solandra Sporobolus Stroganowia Systenotheca
Sarcodes Scilla Sesamum Solanum Stachydeoma Stromanthe Syzygium
Sarracenia Scirpoides Sesbania Soleirolia Stachys Strongylodon  
Sartwellia Scirpus Seseli Solenostemon Stachytarpheta Strophostyles  
Sasa Scleranthus Sesuvium Solidago Stanfordia Strumpfia  
Sassafras Scleria Setaria Soliva Stanleya Strychnos  
Satureja Sclerocactus Setariopsis Sollya Stapelia Stuartina  
             
             
T
      
Tabebuia Tephrosia Thelypodium Tilingia Trachyspermum Trichoptilium Triraphis
Tabernaemontana Terminalia Thelypteris Tillandsia Tracyina Trichosanthes Trisetum
Tacca Ternstroemia Themeda Tinantia Tradescantia Trichospermum Tristagma
Taeniatherum Tetraclea Thermopsis Tipularia Tragia Trichostema Triteleia
Taenidia Tetracoccus Thesium Tiquilia Tragopogon Trichostigma Triteleiopsis
Tagetes Tetradium Thespesia Tithonia Tragus Tricyrtis Triticum
Talinopsis Tetradymia Thevetia Tofieldia Transberingia Tridax Triumfetta
Talinum Tetragonia Thinopyrum Toiyabea Trapa Tridens Trixis
Talipariti Tetragonotheca Thismia Tolmiea Trautvetteria Trientalis Trollius
Tamarindus Tetramerium Thladiantha Tolpis Trema Trifolium Tropaeolum
Tamarix Tetramolopium Thlaspi Tolumnia Trematolobelia Triglochin Tropidia
Tamaulipa Tetraneuris Thrinax Tonella Trembleya Trigonella Tropidocarpum
Tanacetum Tetrapanax Thuarea Tonestus Trepocarpus Trillium Tsuga
Taraxacum Tetraplasandra Thuja Toona Triadenum Trimezia Tuctoria
Tauschia Tetrastigma Thunbergia Tordylium Triadica Triniteurybia Tulipa
Taxodium Tetrazygia Thurovia Torenia Triantha Triodanis Tumamoca
Taxus Teucrium Thymelaea Torilis Trianthema Triosteum Turbina
Tecoma Thalassia Thymophylla Torreya Tribolium Triphasia Turgenia
Tecomaria Thalia Thymus Torreyochloa Tribulus Triphora Turnera
Tectaria Thalictrum Thysanocarpus Touchardia Tricardia Triphysaria Turricula
Tectona Thamnosma Thysanolaena Tournefortia Trichloris Triplasis Turritis
Teesdalia Thaspium Tiarella Townsendia Trichocentrum Tripleurospermum Tussilago
Telesonix Thelesperma Tibouchina Toxicodendron Trichocoronis Tripogon Twisselmannia
Tellima Thellungiella Ticanto Toxicoscordion Trichomanes Tripolium Typha
Telosiphonia Thelocactus Tidestromia Trachelospermum Trichoneura Tripsacum  
Tephroseris Thelypodiopsis Tilia Trachypogon Trichophorum Tripterocalyx  
             
             
U
      
Ulex Uncinia Urena Uropappus Urvillea    
Ulmus Ungnadia Urera Urospermum Utricularia    
Umbellularia Uniola Urochloa Urtica Uvularia    
             
             
V
      
Vaccaria Vallisneria Vaseyochloa Verbascum Veronicastrum Villadia Vittadinia
Vaccinium Vancouveria Vauquelinia Verbena Vesicarpa Vinca Vittaria
Vahlodea Vanda Velezia Verbesina Viburnum Viola Volutaria
Valeriana Vandenboschia Venegasia Vernicia Vicia Viscum Voyria
Valerianella Vanilla Ventenata Vernonia Vigna Vitex Vulpia
Vallesia Varilla Veratrum Veronica Viguiera Vitis  
             
             
W
      
Wahlenbergia Warnockia Wedelia Wikstroemia Wislizenia Wolffiella  
Waldsteinia Washingtonia Weigela Wilhelmsia Wissadula Woodsia  
Waltheria Watsonia Whipplea Wilkesia Wisteria Woodwardia  
Warea Websteria Wigandia Willkommia Wolffia Wyethia  
             
             
X
      
Xanthisma Xanthoceras Xanthosoma Ximenia Xylorhiza    
Xanthium Xanthocyparis Xerochrysum Xolantha Xylosma    
Xanthocephalum Xanthorhiza Xerophyllum Xylococcus Xyris    
             
             
Y
      
Yabea Yeatesia Yermo Youngia Yucca    
             
             
Z
      
Zaluzania Zanthoxylum Zenobia Zingiber Zizia Zoysia  
Zamia Zapoteca Zephyranthes Zinnia Ziziphus Zuckia  
Zannichellia Zea Zeuxine Zizania Zornia Zygophyllum  
Zantedeschia Zelkova Zigadenus Zizaniopsis Zostera    
 

 

 

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Last updated February 10, 2010.