List of Nebraska Plants
Browse by Genus
From 'The Flora of Nebraska' by Kaul, Sutherland, and Rolfsmeier, 2011.
Year of first collection is given for most introduced species.
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
| Abronia fragrans Abutilon theophrasti, 1886 Acalypha ostryifolia Acalypha rhomboidea Acalypha virginica Acer ginnala Acer glabrum Acer negundo Acer platanoides Acer saccharinum Achillea millefolium Acorus americanus Acorus calamus, 1974 Actaea pachypoda Actaea rubra Adiantum pedatum Aegilops cylindrica, 1966 Aesculus glabra v. arguta Agalinis aspera Agalinis purpurea Agalinis skinneriana Agalinis tenuifolia v. macrophylla Agalinis tenuifolia v. parvifolia Agastache foeniculum Agastache nepetoides Agastache scrophulariifolia Ageratina altissima Agoseris glauca Agrimonia gryposepala Agrimonia parviflora Agrimonia pubescens Agrimonia striata Agropyron cristatum, 1961 Agrostemma githago, 1909 Agrostis exarata ssp. minor Agrostis hyemalis Agrostis scabra Agrostis stolonifera, 1886 Ailanthus altissima, 1911 Alcea rosea Alisma gramineum Alisma triviale Alliaria petiolata, 1975 Allium canadense v. canadense Allium canadense v. fraseri Allium canadense v. lavendulare Allium cepa Allium cernuum Allium drummondii Allium perdulce Allium sativum Allium schoenoprasum Allium textile Allium tricoccum v. burdickii Allium tuberosum Allium vineale, 1967 Alopecurus aequalis Alopecurus arundinaceus, 1989 Alopecurus carolinianus Alopecurus geniculatus Alopecurus pratensis, 1968 Althaea officinalis Alyssum alyssoides, 1890 Alyssum desertorum, 1950 Alyssum simplex, 1995 Amaranthus albus Amaranthus arenicola Amaranthus blitoides Amaranthus californicus Amaranthus cruentus, 1907 Amaranthus hybridus Amaranthus hypochondriacus Amaranthus palmeri Amaranthus powellii, 1977 Amaranthus retroflexus Amaranthus spinosus, 1881 Amaranthus tuberculatus Ambrosia acanthicarpa Ambrosia artemisiifolia Ambrosia grayi Ambrosia psilostachya Ambrosia tomentosa Ambrosia trifida Amelanchier alnifolia Amelanchier arborea Amelanchier humilis Ammannia auriculata Ammannia coccinea Ammannia robusta Amorpha canescens Amorpha fruticosa Amorpha nana Ampelopsis cordata Amphicarpaea bracteata Amphiscirpus nevadensis Amsinckia intermedia, 1914 Amsinckia lycopsoides, 1906 Anagallis arvensis, 1898 Anagallis minima Anaphalis margaritacea Andropogon gerardii ssp. gerardii Andropogon gerardii ssp. hallii Andropogon x chrysocomis Androsace occidentalis Anemone canadensis Anemone caroliniana Anemone cylindrica Anemone multifida Anemone patens v. multifida Anemone virginiana Anemopsis californica, 1991 Anethum graveolens Antennaria dimorpha Antennaria howellii ssp. neodioica Antennaria microphylla Antennaria neglecta Antennaria parlinii ssp. fallax Antennaria parvifolia Anthemis arvensis, 1914 Anthemis cotula, 1877 Anthriscus caucalis, 1999 Apios americana Apocynum androsaemifolium Apocynum cannabinum Apocynum x floribundum Aquilegia canadensis Arabidopsis thaliana Arabis canadensis Arabis glabra |
Arabis hirsuta v. pycnocarpa Arabis holboellii v. collinsii Arabis holboellii v. pinetorum Arabis shortii Aralia nudicaulis Aralia racemosa Arctium minus, 1885 Arctium tomentosum, 1978 Arctostaphylos uva-ursi Arenaria lateriflora Arenaria serpyllifolia, 1885 Argemone hispida, 1975 Argemone polyanthemos Argyrochosma dealbata Arisaema dracontium Arisaema triphyllum Aristida basiramea Aristida curtissii Aristida desmantha, 1892 Aristida longespica v. geniculata Aristida oligantha Aristida purpurascens Aristida purpurea v. longiseta Aristida purpurea v. robusta Aristida tuberculosa, 1974 Armoracia rusticana,1958 Arnoglossum atriplicifolium Arnoglossum plantagineum Artemisia absinthium, 1995 Artemisia annua, 1990 Artemisia biennis Artemisia campestris ssp. borealis Artemisia campestris ssp. caudata Artemisia cana Artemisia carruthii Artemisia dracunculus ssp. dracunculus Artemisia dracunculus ssp. glauca Artemisia filifolia Artemisia frigida Artemisia ludoviciana v. ludoviciana Artemisia ludoviciana v. mexicana Artemisia tridentata v. wyomingensis Asarum canadense, 1950s Asclepias amplexicaulis Asclepias arenaria Asclepias asperula ssp. capricornu Asclepias engelmanniana Asclepias incarnata Asclepias lanuginosa Asclepias latifolia Asclepias pumila Asclepias purpurascens Asclepias speciosa Asclepias speciosa x syriaca Asclepias stenophylla Asclepias sullivantii Asclepias syriaca Asclepias tuberosa ssp. interior Asclepias verticillata Asclepias viridiflora Asclepias viridis Asimina triloba Asparagus officinalis Asperugo procumbens, 1961 Asplenium platyneuron Aster ascendens Aster borealis Aster brachyactis Aster drummondii Aster ericoides ssp. ericoides Aster ericoides ssp. pansus Aster falcatus ssp. commutatus Aster fendleri Aster laevis v. geyeri Aster laevis v. laevis Aster lanceolatus ssp. hesperius Aster lanceolatus ssp. lanceolatus Aster lateriflorus Aster novae-angliae Aster oblongifolius Aster ontarionis Aster oolentangiensis Aster pilosus Aster praealtus v. nebraskensis Aster sagittifolius Aster sericeus Aster subulatus v. ligulatus Aster subulatus v. subulatus Aster urophyllus Astragalus agrestis Astragalus barrii Astragalus bisulcatus Astragalus bodinii Astragalus canadensis Astragalus ceramicus v. filifolius Astragalus cicer, 1977 Astragalus crassicarpus Astragalus drummondii Astragalus flexuosus Astragalus gilviflorus Astragalus gracilis Astragalus hyalinus Astragalus kentrophyta Astragalus laxmanii v. robustior Astragalus lotiflorus Astragalus missouriensis Astragalus mollissimus Astragalus pectinatus Astragalus plattensis Astragalus racemosus Astragalus sericoleucus Astragalus shortianus Astragalus spatulatus Astragalus tenellus Athyrium filix-femina ssp. cyclosorum Atriplex argentea Atriplex canescens v. aptera Atriplex canescens v. canescens Atriplex dioica Raf. Atriplex heterosperma, 1970 Atriplex hortensis, 1890s Atriplex patula, 1934 Atriplex powellii Atriplex prostrata, 1990s Atriplex rosea, 1912 Atriplex suckleyi Avena fatua v. fatua, 1962 Avena fatua v. sativa, 1886 Azolla mexicana |
B
| Bacopa rotundifolia Ballota nigra, 1983 Baptisia alba v. macrophylla Baptisia australis v. australis Baptisia australis v. minor Baptisia bracteata v. leucophaea Barbarea vulgaris, 1907 Beckmannia syzigachne Belamcanda chinensis, 1907 Berberis repens Berberis thunbergii, 1991 Berberis vulgaris; 1880s Bergia texana Berteroa incana, 1909 Berula erecta v. incisa Besseya wyomingensis Betula occidentalis Betula papyrifera Bidens aristosa v. retrorsa Bidens bipinnata Bidens cernua Bidens comosa Bidens connata v. gracilipes Bidens connata v. petiolata Bidens coronata Bidens frondosa Bidens polylepis Bidens vulgata Blephilia hirsuta Boehmeria cylindrica Bolboschoenus fluviatilis Bolboschoenus maritimus ssp. paludosus Boltonia asteroides v. latisquama Boltonia asteroides v. recognita |
Bothriochloa bladhii Bothriochloa ischaemum Bothriochloa laguroides ssp. torreyana Botrychium campestre Botrychium simplex Botrychium virginianum Bouteloua curtipendula Bouteloua gracilis Bouteloua hirsuta Bouteloua simplex, 1992 Brachyelytrum erectum Brasenia schreberi Brassica juncea, 1890 Brassica nigra, 1875 Brassica rapa ssp. campestris, 1897 Brickellia eupatorioides v. corymbulosa Brickellia grandiflora Bromus biebersteinii Bromus briziformis, 1911 Bromus carinatus Bromus ciliatus Bromus hordeaceus, 1892 Bromus inermis, 1902 Bromus japonicus, 1900 Bromus latiglumis Bromus porteri Bromus pubescens Bromus secalinus, 1889 Bromus squarrosus, 1909 Bromus tectorum,1897 Buchloe dactyloides Bulbostylis capillaris Butomus umbellatus,1999 |
C
| Calamagrostis canadensis Calamagrostis stricta Calamovilfa gigantea Calamovilfa longifolia Callirhoe alcaeoides Callirhoe involucrata Callitriche hermaphroditica Callitriche palustris Calochortus gunnisonii Calochortus nuttallii Caltha palustris Calylophus lavandulifolius Calylophus serrulatus Calystegia macounii Calystegia sepium ssp. angulata Camelina microcarpa Camelina sativa, 1889 Campanula americana Campanula aparinoides Campanula rapunculoides Campanula rotundifolia Campsis radicans Cannabis sativa, 1877 Capsella bursa-pastoris, 1884 Caragana arborescens Cardamine bulbosa Cardamine concatenata Cardamine flexuosa Cardamine pensylvanica Carduus acanthoides, 1930 Carduus nutans, 1932 Carex aggregata Carex albicans v. albicans Carex albursina Carex aquatilis v. substricta Carex atherodes Carex aurea Carex aureolensis Carex austrina Carex bebbii Carex bicknellii Carex blanda Carex brachyglossa Carex brevior Carex bushii Carex buxbaumii Carex cephalophora Carex comosa Carex conjuncta Carex crawei Carex crinita Carex cristatella Carex crus-corvi Carex davisii Carex diandra Carex douglasii Carex eburnea Carex eleocharis Carex emoryi Carex filifolia Carex frankii Carex granularis v. haleana Carex gravida Carex grisea Carex heliophila Carex hirtifolia Carex hitchcockiana Carex hyalinolepis Carex hystericina Carex interior Carex jamesii Carex lacustris Carex laeviconica Carex laeviconica x trichocarpa Carex lasiocarpa Carex leavenworthii Carex limosa Carex lupulina Carex meadii Carex melanostachya, 1989 Carex mesochorea Carex missouriensis Carex molesta Carex nebrascensis Carex normalis Carex oligocarpa Carex parryana v. unica Carex peckii Carex pellita Carex praegracilis Carex prairea Carex radiata Carex rosea Carex rossii Carex sartwellii Carex saximontana Carex scoparia Carex sparganioides Carex sprengelii Carex squarrosa Carex stipata Carex tenera v. echinodes Carex tetanica Carex texensis, 1991 Carex tribuloides Carex umbellata Carex utriculata Carex vesicaria Carex vulpinoidea Carex xerantica Carthamus tinctorius Carya cordiformis Carya ovata Castilleja sessiliflora Catabrosa aquatica Catalpa bignonioides Catalpa speciosa Caulophyllum thalictroides Ceanothus americanus v. pitcheri Ceanothus herbaceus v. pubescens Celastrus scandens Celtis occidentalis Cenchrus longispinus Centaurea cyanus, 1892 Centaurea diffusa, 1990 Centaurea nigra, 1992 Centaurea repens, 1931 Centaurea solstitialis, 1908 Centaurea stoebe ssp. micranthos, 1917 Centaurium exaltatum Centaurium pulchellum, 1981 Cephalanthus occidentalis Cerastium arvense ssp. strictum Cerastium brachypodum Cerastium fontanum ssp. vulgare, 1890 Cerastium nutans Cerastium semidecandrum, 1987 Ceratophyllum demersum Cercis canadensis Cercocarpus montanus Chaenactis douglasii Chaenorrhinum minus Chaerophyllum procumbens Chaerophyllum tainturieri Chaetopappa ericoides Chamaecrista fasciculata Chamerion angustifolium Chasmanthium latifolium, 1999 Cheilanthes feei |
Chelidonium majus Chenopodium album Chenopodium ambrosioides, 1898 Chenopodium berlandieri Chenopodium botrys, 1891 Chenopodium capitatum, 1891 Chenopodium cycloides Chenopodium desiccatum Chenopodium fremontii Chenopodium glaucum v. glaucum, 1897 Chenopodium glaucum v. salinum Chenopodium incanum Chenopodium missouriense Chenopodium pallescens Chenopodium pratericola Chenopodium rubrum Chenopodium simplex Chenopodium standleyanum Chenopodium strictum Chenopodium subglabrum Chenopodium urbicum, 1889 Chloris verticillata Chloris virgata, 1972 Chorispora tenella, 1914 Chrysothamnus viscidiflorus Cichorium intybus, 1880 Cicuta bulbifera Cicuta maculata v. angustifolia Cicuta maculata v. bolanderi Cicuta maculata v. maculata Cinna arundinacea Circaea lutetiana ssp. canadensis Cirsium altissimum Cirsium arvense, 1886 Cirsium canescens Cirsium discolor Cirsium flodmanii Cirsium ochrocentrum Cirsium undulatum Cirsium vulgare, 1890 Claytonia virginica Clematis fremontii Clematis hirsutissima Clematis ligusticifolia Clematis pitcheri Clematis terniflora Clematis virginiana Cleome hassleriana Cleome serrulata Cleomella angustifolia Coeloglossum viride v. virescens Collinsia parviflora Collomia linearis Comandra umbellata ssp. pallida Comandra umbellata ssp. umbellata Commelina communis, 1914 Commelina erecta v. angustifolia Conioselinum chinense, 1905 Conium maculatum, 1936 Conringia orientalis, 1908 Consolida ajacis Convallaria majalis Convolvulus arvensis, 1889 Conyza canadensis Conyza ramosissima Corallorhiza maculata v. occidentalis Corallorhiza odontorhiza Corallorhiza striata v. flavida Corallorhiza wisteriana Coreopsis lanceolata Coreopsis palmata Coreopsis tinctoria Corispermum americanum Corispermum villosum Corispermum welshii Cornus alternifolia Cornus amomum ssp. obliqua Cornus drummondii Cornus sericea Corydalis aurea Corydalis curvisiliqua ssp. occidentalis Corydalis flavula Corydalis micrantha Corylus americana Coryphantha missouriensis Coryphantha vivipara Crataegus chrysocarpa Crataegus macracantha v. occidentalis Crataegus mollis Crepis atribarba Crepis occidentalis ssp. costata Crepis runcinata Crepis tectorum, 1891 Crotalaria sagittalis, 1873 Croton capitatus Croton glandulosus v. septentrionalis Croton monanthogynus Croton texensis Cryptantha cana Cryptantha celosioides Cryptantha cinerea v. jamesii Cryptantha fendleri Cryptantha minima Cryptantha thyrsiflora Cryptotaenia canadensis Cucurbita foetidissima Cuphea viscosissima Cuscuta approximata Cuscuta campestris Cuscuta cephalanthi Cuscuta coryli Cuscuta cuspidata Cuscuta epithymum, 1903 Cuscuta glomerata Cuscuta gronovii Cuscuta indecora Cuscuta polygonorum Cuscuta umbrosa Cyclanthera dissecta Cycloloma atriplicifolium Cymbalaria muralis Cymopterus acaulis Cymopterus montanus Cynanchum laeve Cynodon dactylon Cynodon transvaalensis, 1968 Cynoglossum officinale, 1873 Cyperus acuminatus Cyperus bipartitus Cyperus diandrus Cyperus difformis, 1968 Cyperus engelmannii Cyperus erythrorhizos Cyperus esculentus v. leptostachyus Cyperus fuscus, 1968 Cyperus lupulinus ssp. lupulinus Cyperus lupulinus ssp. macilentus Cyperus lupulinus x schweinitzii Cyperus odoratus Cyperus schweinitzii Cyperus squarrosus Cyperus strigosus Cypripedium candidum Cypripedium parviflorum Cystopteris bulbifera Cystopteris fragilis Cystopteris protrusa Cystopteris tenuis |
D
| Dactylis glomerata, 1885 Dalea aurea Dalea candida v. candida Dalea candida v. oligophylla Dalea cylindriceps Dalea enneandra Dalea leporina Dalea multiflora Dalea purpurea v. arenicola Dalea purpurea v. purpurea Dalea villosa Danthonia spicata Dasistoma macrophylla Datura stramonium, 1872 Datura wrightii Daucus carota, 1894 Delphinium geyeri Delphinium nuttallianum Delphinium tricorne Delphinium virescens Deschampsia cespitosa, 2005 Descurainea pinnata Descurainia sophia, 1897 Desmanthus illinoensis Desmodium canadense Desmodium canescens Desmodium cuspidatum Desmodium glutinosum Desmodium illinoense Desmodium paniculatum Desmodium perplexum Desmodium sessilifolium |
Dianthus armeria, 1935 Dianthus barbatus, 1978 Diarrhena obovata Dicentra cucullaria Dieteria canescens v. canescens Dieteria canescens v. glabra Dieteria canescens v. nebraskana Digitalis lanata, 1991 Digitaria ciliaris, 1967 Digitaria cognata Digitaria ischaemum, 1898 Digitaria sanguinalis, 1884 Diodia teres Dioscorea villosa Diospyros virginiana, 1979 Diplotaxis muralis, 1916 Dipsacus fullonum, 1974 Dipsacus laciniatus, 1972 Distichlis spicata Dodecatheon pulchellum Doellingeria umbellata v. pubens Draba brachycarpa Draba cuneifolia Draba nemorosa Draba reptans Dracocephalum moldavica, 1889 Dracocephalum parviflorum Drymocallis arguta Dryopteris carthusiana Dryopteris cristata Dulichium arundinaceum Dyssodia papposa |
E
| Echinacea angustifolia Echinacea pallida Echinacea purpurea Echinocereus viridiflorus Echinochloa crus-galli, 1891 Echinochloa muricata v. microstachya Echinochloa muricata v. muricata Echinocystis lobata Echinodorus berteroi Echinops sphaerocephalus, 1960s Echium vulgare, 1888 Eclipta prostrata Elaeagnus angustifolia Elaeagnus umbellata, 1986 Elatine brachysperma Elatine rubella Eleocharis acicularis Eleocharis atropurpurea Eleocharis coloradoensis Eleocharis compressa Eleocharis elliptica Eleocharis engelmannii Eleocharis erythropoda Eleocharis geniculata Eleocharis obtusa Eleocharis palustris Eleocharis quinqueflora Eleocharis rostellata Eleocharis wolfii Eleusine indica, 1907 Ellisia nyctelea Elodea bifoliata Elodea canadensis Elodea nuttallii Elyhordeum iowense Elyhordeum macounii Elyhordeum montanense Elymus canadensis Elymus cinereus Elymus curvatus [disc. with E. virginicus] Elymus elongatus, 1961 Elymus elymoides ssp. brevifolius Elymus elymoides ssp. elymoides Elymus hispidus, 1968 Elymus hystrix Elymus junceus, 1973 Elymus lanceolatus ssp. albicans Elymus lanceolatus ssp. lanceolatus Elymus macgregorii Elymus repens, 1905 Elymus smithii Elymus spicatus Elymus trachycaulus ssp. subsecundus Elymus trachycaulus ssp. trachycaulus Elymus villosus Elymus virginicus Engelmannia pinnatifida Epilobium brachycarpum Epilobium ciliatum Epilobium coloratum Epilobium leptophyllum Equisetum arvense Equisetum fluviatile Equisetum hyemale v. affine Equisetum laevigatum Equisetum x ferrissii Eragrostis barrelieri, 1983 Eragrostis capillaris Eragrostis cilianensis, 1874 Eragrostis curvula, 1984 Eragrostis hypnoides Eragrostis minor, 1969 Eragrostis pectinacea Eragrostis pilosa v. perplexa Eragrostis reptans Eragrostis secundiflora ssp. oxylepis Eragrostis spectabilis Eragrostis trichodes Erechtites hieraciifolius Eremogone hookeri |
Eremopyrum triticeum, 1995 Ericameria nauseosa v. graveolens Ericameria nauseosa v. nauseosa Ericameria nauseosa v. oreophila Ericameria parryi v. howardii Erigeron annuus Erigeron bellidiastrum Erigeron caespitosus Erigeron canus Erigeron divergens Erigeron flagellaris Erigeron lonchophyllus Erigeron ochroleucus var. scribneri Erigeron philadelphicus Erigeron pumilis Erigeron strigosus Erigeron subtrinervis Erigeron vetensis Eriochloa contracta Eriochloa villosa, 1989 Eriogonum alatum Eriogonum annuum Eriogonum brevicaule Eriogonum cernuum Eriogonum effusum Eriogonum flavum Eriogonum gordonii Eriogonum pauciflorum Eriogonum x nebraskense Eriophorum angustifolium Eriophorum gracile Erodium cicutarium, 1914 Eruca vesicaria ssp. sativa, 1910 Erucastrum gallicum Eryngium yuccifolium Erysimum asperum Erysimum cheiranthoides Erysimum inconspicuum Erysimum repandum, 1897 Erythronium albidum Erythronium mesochoreum Eschscholzia californica, 1980s Euclidium syriacum, 1991 Euonymus atropurpurea Euonymus europaea Euonymus fortunei Eupatorium altissimum Eupatorium maculatum ssp. bruneri Eupatorium perfoliatum Eupatorium purpureum v. holzingeri Eupatorium purpureum v. purpureum Eupatorium serotinum Euphorbia corollata Euphorbia cyathophora Euphorbia cyparissias, 1878 Euphorbia davidii Euphorbia dentata Euphorbia esula v. esula, 1929 Euphorbia esula v. uralensis, 1980 Euphorbia fendleri Euphorbia geyeri Euphorbia glyptosperma Euphorbia hexagona Euphorbia maculata Euphorbia marginata Euphorbia missurica v. missurica Euphorbia missurica v. petaloidea Euphorbia nutans Euphorbia prostrata Euphorbia robusta Euphorbia serpens Euphorbia serpyllifolia Euphorbia spathulata Euphorbia stictospora Eustoma grandiflorum Euthamia gymnospermoides Euthamia occidentalis Evax prolifera Evolvulus nuttallianus |
F
| Fagopyrum esculentum Falcaria vulgaris, 1946 Festuca rubra Festuca saximontana Festuca subverticillata Festuca trachyphylla Filago arvensis, 1995 Fimbristylis autumnalis Fimbristylis puberula v. interior Fimbristylis puberula v. puberula Fimbristylis vahlii Foeniculum vulgare, 1892 |
Fragaria vesca ssp. americana Fragaria virginiana ssp. glauca Fragaria virginiana ssp. virginiana Fraxinus americana Fraxinus pennsylvanica Fritillaria atropurpurea Froelichia floridana Froelichia gracilis Fuirena simplex v. aristulata Fumaria officinalis ssp. wirtgenii, 1980s Fumaria vaillantii, 1995 |
G
| Gaillardia pulchella Galearis spectabilis Galega officinalis, 1935 Galeopsis bifida, 1952 Galinsoga parviflora, 1942 Galinsoga quadriradiata, 1927 Galium aparine Galium boreale Galium circaezans v. hypomalacum Galium concinnum Galium obtusum Galium tinctorium Galium trifidum Galium triflorum Galium verum, 1974 Gaura coccinea Gaura longiflora Gaura neomexicana ssp. coloradoensis Gaura parviflora Gentiana andrewsii v. dakotica Gentiana flavida Gentiana puberulenta Geranium carolinianum Geranium maculatum Geranium pusillum, 1891 Geranium viscosissimum Geum aleppicum Geum canadense |
Geum laciniatum v. trichocarpum Geum vernum Gilia pinnatifida Glaux maritima Glechoma hederacea, 1889 Gleditsia triacanthos Glyceria borealis Glyceria grandis Glyceria striata Glycine max Glycyrrhiza lepidota Gnaphalium jaliscense, 1968 Gnaphalium obtusifolium Gnaphalium palustre Gnaphalium purpureum Gnaphalium stramineum, 1983 Goodyera oblongifolia Gratiola neglecta Grindelia ciliata, 1934 Grindelia squarrosa v. quasiperennis Grindelia squarrosa v. serrulata Grindelia squarrosa v. squarrosa Gutierrezia dracunculoides Gutierrezia sarothrae Gymnocladus dioica Gypsophila paniculata, 1895 Gypsophila scorzonerifolia, 1995 |
H
| Hackelia deflexa v. americana Hackelia floribunda Hackelia virginiana Halogeton glomeratus, 1995 Hedeoma drummondii Hedeoma hispida Hedeoma pulegioides Hedera helix Helenium autumnale Helianthemum bicknellii Helianthus annuus Helianthus grosseserratus Helianthus hirsutus Helianthus maximiliani Helianthus mollis Helianthus nuttallii Helianthus pauciflorus ssp. pauciflorus Helianthus pauciflorus ssp. subrhomboideus Helianthus petiolaris Helianthus tuberosus Heliopsis helianthoides v. occidentalis Heliotropium curassavicum v. curassavicum Heliotropium curassavicum v. obovatum Hemerocallis fulva Heracleum lanatum Hesperis matronalis, 1887 Heteranthera limosa Heteranthera multiflora Heterotheca latifolia, 1988 Heterotheca stenophylla v. angustifolia Heterotheca stenophylla v. stenophylla Heterotheca villosa v. ballardii Heterotheca villosa v. nana |
Heterotheca villosa v. villosa Heuchera richardsonii Hibiscus laevis Hibiscus trionum, 1873 Hieracium kalmii v. canadense Hieracium longipilum Hieracium umbellatum Hippuris vulgaris Holosteum umbellatum, 1971 Hordeum jubatum Hordeum murinum, 2005 Hordeum pusillum Hordeum vulgare Houstonia nigricans Houstonia purpurea v. calycosa Houstonia pusilla Humulus japonicus, 1959 Humulus lupulus v. lupuloides Humulus lupulus v. neomexicana Humulus lupulus v. pubescens Hydrophyllum appendiculatum Hydrophyllum virginianum Hymenopappus filifolius v. polycephalus Hymenopappus scabiosaeus v. corymbosus Hymenopappus tenuifolius Hymenoxys richardsonii Hyoscyamus niger, 1991 Hypericum majus Hypericum mutilum Hypericum perforatum, 1885 Hypericum punctatum Hypericum pyramidatum Hypericum sphaerocarpum Hypoxis hirsuta |
I
| Impatiens capensis Impatiens pallida Ipomoea hederacea v. hederacea, 1877 Ipomoea hederacea v. integriuscula, 2001 Ipomoea leptophylla Ipomoea pandurata Ipomoea purpurea Ipomopsis congesta ssp. congesta Ipomopsis congesta ssp. pseudotypica Ipomopsis longiflora Ipomopsis rubra |
Ipomopsis spicata Iris germanica group Iris missouriensis Iris pseudacorus, 1968 Iris versicolor Iris virginica v. shrevei Isoetes melanopoda Iva annua Iva axillaris v. axillaris Iva axillaris v. robustior Iva xanthiifolia |
J
| Juglans nigra Juncus acuminatus Juncus alpinoarticulatus Juncus arcticus v. balticus Juncus articulatus Juncus brachyphyllus Juncus bufonius Juncus canadensis Juncus compressus, 1989 Juncus dudleyi Juncus effusus Juncus interior |
Juncus longistylis Juncus marginatus Juncus nodosus Juncus scirpoides Juncus tenuis Juncus torreyi Juniperus communis v. depressa Juniperus horizontalis Juniperus scopulorum Juniperus virginiana Justicia americana, 2003 |
K
| Kochia scoparia, 1905 Koeleria macrantha Krascheninnikovia lanata |
Krigia caespitosa Kummerowia stipulacea, 1969 |
L
| Lactuca canadensis Lactuca floridana Lactuca ludoviciana Lactuca pulchella Lactuca saligna, 1971 Lactuca seriola v. integrata Lactuca serriola v. serriola, 1889 Lamium amplexicaule, 1878 Lamium purpureum, 1974 Laportea canadensis Lappula cenchrusoides Lappula redowskii v. cupulata Lappula redowskii v. redowskii Lappula squarrosa Lathyrus latifolius, 1895 Lathyrus ochroleucus Lathyrus palustris Lathyrus polymorphus v. incanus Lathyrus polymorphus v. polymorphus Lathyrus tuberosus, 1967 Lechea mucronata Lechea stricta Lechea tenuifolia Leersia oryzoides Leersia virginica Lemna gibba Lemna minor Lemna minuta Lemna perpusilla Lemna trisulca Lemna valdiviana Leonurus cardiaca, 1892 Leonurus marrubiastrum, 1974 Leonurus sibiricus, 1966 Lepidium appelianum, 1927 Lepidium campestre, 1974 Lepidium chalepensis, 1940 Lepidium densiflorum Lepidium draba, 1908 Lepidium latifolium, 1961 Lepidium oblongum Lepidium perfoliatum, 1933 Lepidium sativum, 1893 Lepidium virginicum Leptochloa fusca ssp. fascicularis Leptodactylon caespitosum Lespedeza capitata Lespedeza cuneata, 1974 Lespedeza violacea Leucanthemum vulgare, 1887 Leucocrinum montanum Leucopoa kingii Leucospora multifida Liatris aspera Liatris lancifolia Liatris ligulistylis Liatris punctata Liatris pycnostachya Liatris squarrosa v. glabrata Liatris squarrosa v. hirsuta Ligustrum obtusifolium, 1991 Ligustrum vulgare, 1983 Lilium canadense ssp. michiganense Lilium philadelphicum Limosella aquatica Linaria dalmatica, 1971 Linaria vulgaris, 1883 Lindernia dubia Linum berlandieri |
Linum compactum Linum grandiflorum Linum perenne ssp. lewisii Linum perenne ssp. perenne Linum puberulum Linum rigidum v. rigidum Linum rigidum v. simulans Linum sulcatum Linum usitatissimum Liparis loeselii Lipocarpha aristulata Lipocarpha drummondii Lipocarpha micrantha Lippia cuneifolia Lippia lanceolata Lithophragma parviflorum Lithospermum arvense Lithospermum canescens Lithospermum caroliniense Lithospermum incisum Lobelia cardinalis Lobelia inflata Lobelia siphilitica Lobelia spicata Lobularia maritima Loeflingia squarrosa var. texana, 1889 Lolium arundinaceum, 1973 Lolium perenne ssp. italicum, 1886 Lolium perenne v. perenne, 1891 Lolium pratense, 1886 Lomatium foeniculaceum v. daucifolium Lomatium foeniculaceum v. foeniculaceum Lomatium nuttallii Lomatium orientale Lonicera dioica v. glaucescens Lonicera japonica, 1980s Lonicera maackii, 1995 Lonicera morrowii, 1998 Lonicera tatarica, 1880s Lonicera x bella Lonicera x xylosteoides Lonicera xylosteum, 1991 Lotus corniculatus, 1974 Lotus purshianus Lotus tenuis, 1971 Ludwigia alternifolia Ludwigia palustris Ludwigia peploides ssp. glabrescens Ludwigia polycarpa Lunaria annua Lupinus argenteus v. argenteus Lupinus argenteus v. argophyllus Lupinus plattensis Lupinus pusillus Lycium barbarum, ca 1900 Lycopus americanus Lycopus asper Lycopus uniflorus Lycopus virginicus Lygodesmia juncea Lysimachia ciliata Lysimachia hybrida Lysimachia nummularia, 1996 Lysimachia punctata, 1971 Lysimachia thyrsiflora Lythrum alatum Lythrum salicaria, 1972 |
M
| Machaeranthera tanacetifolia Maclura pomifera, 1907; cult. 1870s Maianthemum canadense v. interius Malva neglecta, 1889 Malva parviflora, 1902 Malva pusilla, 1889 Malva sylvestris, 1894 Marrubium vulgare, 1898 Marsilea vestita Matricaria chamomilla Matricaria inodora, 1905 Matricaria matricarioides, 1974 Matteuccia struthiopteris v. pensylvanica Medicago lupulina, 1873 Medicago sativa ssp. falcata Medicago sativa ssp. sativa Melica nitens Melilotus albus, 1888 Melilotus officinalis, 1885 Menispermum canadense Mentha arvensis Mentha spicata Mentha x gracilis Mentha x piperita Mentzelia albicaulis Mentzelia decapetala Mentzelia multiflora Mentzelia nuda v. stricta Mentzelia oligosperma Menyanthes trifoliata Mertensia lanceolata Mertensia virginica, 1950 Microsteris gracilis v. humilior Mimosa quadrivalvis v. nuttallii Mimulus alatus Mimulus glabratus jamesii Mimulus guttatus Mimulus ringens Minuartia michauxii v. texana Mirabilis albida Mirabilis glabra Mirabilis hirsuta |
Mirabilis linearis Mirabilis nyctaginea Miscanthus sacchariflorus Mollugo verticillata, 1878 Monarda citriodora Monarda fistulosa v. menthifolia Monarda fistulosa v. mollis Monarda pectinata Monarda punctata v. occidentalis, 1987 Monolepis nuttalliana Monotropa hypopithys Monotropa uniflora Morus alba, 1920 Morus rubra Muhlenbergia asperifolia Muhlenbergia bushii Muhlenbergia cuspidata Muhlenbergia filiformis Muhlenbergia frondosa Muhlenbergia glomerata Muhlenbergia mexicana Muhlenbergia minutissima Muhlenbergia pungens Muhlenbergia racemosa Muhlenbergia richardsonis Muhlenbergia schreberi Muhlenbergia sobolifera Muhlenbergia sylvatica Muhlenbergia tenuiflora Munroa squarrosa Muscari botryoides Musineon divaricatum Musineon tenuifolium Myosotis laxa Myosotis stricta, 1995 Myosotis verna Myosoton aquaticum, 1974 Myosurus minimus Myriophyllum pinnatum Myriophyllum sibiricum Myriophyllum spicatum, 1980 Myriophyllum verticillatum |
N
| Najas flexilis Najas guadalupensis Najas marina Nasturtium microphyllum, 1991 Nasturtium officinale, 1875 Navarretia intertexta v. propinqua Nelumbo lutea Nepeta cataria, 1873 |
Nicandra physalodes Nothocalais cuspidata Nothoscordum bivalve Nuphar variegata Nuttallanthus texanus Nymphaea odorata ssp. odorata Nymphaea odorata ssp. tuberosa |
O
| Oenanthe sarmentosa, 1998 Oenothera albicaulis Oenothera biennis v. biennis Oenothera biennis v. canescens Oenothera biennis v. strigosa Oenothera caespitosa v. caespitosa Oenothera caespitosa v. montana Oenothera canescens Oenothera coronopifolia Oenothera grandis Oenothera laciniata Oenothera latifolia Oenothera macrocarpa ssp. fremontii Oenothera macrocarpa ssp. macrocarpa Oenothera nuttallii Oenothera perennis Oenothera rhombipetala Oenothera speciosa, 1915 Onoclea sensibilis Onopordum acanthium, 1960s Onosmodium molle v. occidentale Oönopsis multicaulis |
Ophioglossum engelmannii Ophioglossum pusillum Opuntia fragilis Opuntia macrorhiza Opuntia polyacantha Ornithogalum umbellatum, 1951 Orobanche fasciculata Orobanche ludoviciana Orobanche uniflora Orobanche riparia Orthilia secunda Orthocarpus luteus Oryzopsis micrantha Oryzopsis racemosa Osmorhiza claytonii Osmorhiza longistylis Ostrya virginiana Oxalis dillenii Oxalis stricta Oxalis violacea Oxytropis lambertii Oxytropis multiceps Oxytropis sericea |
P
| Palafoxia sphacelata Panax quinquefolius Panicum acuminatum Panicum capillare Panicum depauperatum Panicum dichotomiflorum Panicum latifolium Panicum leibergii Panicum linearifolium Panicum miliaceum Panicum oligosanthes v. scribnerianum Panicum ovale v. praecocius Panicum virgatum Panicum wilcoxianum Papaver rhoeas, 1980s Parietaria pensylvanica Paronychia canadensis Paronychia jamesii v. depressa Paronychia jamesii v. jamesii Paronychia sessiliflora Parthenocissus quinquefolia Parthenocissus tricuspidata, 1974 Parthenocissus vitacea Paspalum setaceum v. stramineum Pastinaca sativa, 1890 Pectis angustifolia Pedicularis canadensis Pedicularis crenulata Pedicularis lanceolata Pediomelum argophyllum Pediomelum cuspidatum Pediomelum digitatum Pediomelum esculentum Pediomelum hypogaeum Pediomelum linearifolium Pellaea atropurpurea Pellaea glabella Penstemon albidus Penstemon ambiguus Penstemon angustifolius v. angustifolius Penstemon angustifolius v. caudatus Penstemon buckleyi Penstemon cobaea Penstemon digitalis Penstemon eriantherus Penstemon glaber Penstemon gracilis Penstemon grandiflorus Penstemon haydenii Penstemon tubaeflorus Penthorum sedoides Perilla frutescens, 1974 Petunia x hybrida Phacelia hastata Phalaris arundinacea Phalaris canariensis, 1877 Phemeranthus calycinus Phemeranthus parviflorus Phemeranthus rugospermus Philadelphus coronarius Philadelphus pubescens Phleum pratense, 1873 Phlox alyssifolia Phlox andicola Phlox divaricata ssp. laphamii Phlox hoodii Phlox muscoides Phlox paniculata, 1974 Phlox pilosa ssp. fulgida Phragmites australis Phryma leptostachya Physalis hederifolia v. comata Physalis heterophylla Physalis hispida Physalis longifolia Physalis missouriensis Physalis pumila Physalis virginiana Physaria arenosa ssp. arenosa Physaria arenosa ssp. argillosa Physaria brassicoides Physaria ludoviciana Physaria montana Physaria ovalifolia Physaria reediana Physocarpus opulifolius v. intermedius Physostegia parviflora Physostegia virginiana ssp. praemorsa Physostegia virginiana ssp. virginiana Phytolacca americana Picradeniopsis oppositifolia Pilea fontana Pilea pumila Pilularia americana Pinus flexilis Pinus ponderosa v. scopulorum Plagiobothrys scouleri v. penicillatus Plantago aristata Plantago elongata Plantago eriopoda Plantago lanceolata, 1887 Plantago major, 1873 Plantago patagonica v. spinulosa Plantago patagonica v.patagonica Plantago rhodosperma Plantago rugelii Plantago virginica Platanthera aquilonis Platanthera praeclara Platanus occidentalis Poa annua, 1953 Poa arida Poa bulbosa, 1988 Poa chapmaniana Poa compressa, 1885 Poa fendleriana Poa glaucifolia Poa interior Poa juncifolia Poa palustris, 1890 Poa pratensis |
Poa secunda Poa sylvestris Poa trivialis Podophyllum peltatum Polanisia dodecandra ssp. dodecandra Polanisia dodecandra ssp. trachysperma Polanisia jamesii Polemonium reptans Polygala alba Polygala sanguinea Polygala senega Polygala verticillata v. isocycla Polygala verticillata v. sphenostachya Polygonatum biflorum Polygonum achoreum Polygonum amphibium Polygonum aviculare ssp. aviculare Polygonum aviculare ssp. depressum Polygonum aviculare ssp. neglectum Polygonum bicorne Polygonum bungeanum, 2006 Polygonum buxiforme Polygonum cespitosum v. longisetum, 1967 Polygonum coccineum Polygonum convolvulus, 1879 Polygonum cuspidatum Polygonum douglasii Polygonum erectum Polygonum hydropiper, 1885 Polygonum hydropiperoides v. hydropiperoides Polygonum hydropiperoides v. opelousanum Polygonum lapathifolium Polygonum minus, 2000 Polygonum orientale, 1898 Polygonum pensylvanicum Polygonum persicaria, 1885 Polygonum punctatum Polygonum ramosissimum Polygonum sagittatum Polygonum sawatchense ssp. sawatchense Polygonum scandens Polygonum tenue Polygonum virginianum Polypogon interruptus Polypogon monspeliensis, 1907 Polytaenia nuttallii Pomaria jamesii Populus alba Populus angustifolia Populus deltoides v. occidentalis Populus tremuloides Populus x acuminata Populus x smithii Portulaca grandiflora Portulaca oleracea, 1893 Portulaca pilosa Potamogeton amplifolius Potamogeton crispus, 1965 Potamogeton diversifolius Potamogeton filiformis v. alpinus Potamogeton filiformis v. occidentalis Potamogeton foliosus Potamogeton friesii Potamogeton gramineus Potamogeton illinoensis Potamogeton natans Potamogeton nodosus Potamogeton pectinatus Potamogeton praelongus Potamogeton pusillus Potamogeton richardsonii Potamogeton strictifolius Potamogeton zosteriformis Potentilla anserina Potentilla argentea, 1986 Potentilla bipinnatifida Potentilla hippiana v. effusa Potentilla indica, 1974 Potentilla norvegica Potentilla paradoxa Potentilla pensylvanica Potentilla plattensis Potentilla recta, 1926 Potentilla rivalis Potentilla simplex Prenanthes aspera Prenanthes racemosa ssp. multiflora Proboscidea louisianica Prosartes trachycarpa Prunella vulgaris v. lanceolata Prunella vulgaris v. vulgaris, 1961 Prunus americana Prunus angustifolia Prunus cerasus, 1992 Prunus hortulana Prunus pumila v. besseyi Prunus serotina Prunus tomentosa, 1998 Prunus virginiana Psoralidium lanceolatum Psoralidium tenuiflorum Ptelea trifoliolata Pterospora andromedea Puccinellia distans, 1983 Puccinellia nuttalliana Pueraria montana v. lobata, 1992 Purshia tridentata Pycnanthemum tenuifolium Pycnanthemum verticillatum v. pilosum Pycnanthemum virginianum Pyrola chlorantha Pyrola elliptica Pyrrhopappus carolinianus Pyrrhopappus grandiflorus Pyrus ioensis |
Q
| Quercus alba Quercus macrocarpa Quercus marilandica Quercus muehlenbergii Quercus palustris |
Quercus rubra Quercus velutina Quercus x bushii Quincula lobata |
R
| Ranunculus abortivus Ranunculus cymbalaria Ranunculus fascicularis Ranunculus flabellaris Ranunculus glaberrimus v. ellipticus Ranunculus hispidus v. caricetorum Ranunculus longirostris Ranunculus macounii Ranunculus pensylvanicus Ranunculus recurvatus Ranunculus repens, 1983 Ranunculus rhomboideus Ranunculus sceleratus v. multifidus Ranunculus sceleratus v. sceleratus Ranunculus subrigidus Ranunculus testiculatus, 1971 Raphanus sativus Ratibida columnifera Ratibida pinnata Ratibida tagetes Rayjacksonia annua Redfieldia flexuosa Reseda lutea, 1974 Rhamnus cathartica, 1890s Rhamnus davurica. 1987 Rhamnus frangula, 1997 Rhamnus lanceolata v. glabrata Rhus aromatica Rhus copallina v. latifolia Rhus glabra Rhus typhina, 2003 Rhynchospora capitellata Ribes americanum Ribes cereum v. inebrians Ribes hirtellum Ribes missouriense Ribes odoratum Ribes oxyacanthoides Robinia hispida, 1990 Robinia pseudoacacia Rorippa austriaca, 1961 Rorippa curvipes v. truncata Rorippa palustris v. fernaldiana |
Rorippa palustris v. hispida Rorippa sessiliflora Rorippa sinuata Rorippa sylvestris, 1991 Rorippa tenerrima Rosa arkansana Rosa blanda Rosa canina, 1992 Rosa carolina Rosa multiflora, 1974 Rosa rubiginosa Rosa setigera v. tomentosa Rosa woodsii Rotala ramosior v. interior Rubus allegheniensis Rubus flagellaris Rubus frondosus Rubus laudatus Rubus occidentalis Rubus pubescens Rubus rosa Rudbeckia hirta v. pulcherrima Rudbeckia laciniata Rudbeckia triloba Ruellia humilis Ruellia strepens Rumex acetosella, 1885 Rumex altissimus Rumex britannica Rumex crispus, 1889 Rumex fueginus Rumex obtusifolius, 1892 Rumex patientia ssp. orientalis, 1890 Rumex patientia ssp. patientia, 1947 Rumex stenophyllus, 1935 Rumex triangulivalvis Rumex venosus Rumex verticillatus Rumex x alexidis Ruppia maritima Ruppia occidentalis |
S
| Sagittaria brevirostra Sagittaria calycina Sagittaria cuneata Sagittaria graminea Sagittaria latifolia Sagittaria longiloba Sagittaria rigida Salicornia rubra Salix amygdaloides Salix bebbiana Salix eriocephala v. eriocephala Salix eriocephala v. famelica Salix exigua ssp. interior Salix fragilis Salix humilis Salix nigra Salix petiolaris Salix x pendulina Salix x rubens Salix x sepulcralis v. chrysocoma Salix x sepulcralis v. sepulcralis Salsola collina, 1977 Salsola tragus, 1889 Salvia azurea v. grandiflora Salvia nemorosa, 1968 Salvia reflexa Sambucus canadensis Sanguinaria canadensis Sanguisorba minor Sanicula canadensis Sanicula marilandica Sanicula odorata Saponaria officinalis, 1890 Sarcobatus vermiculatus Schedonnardus paniculatus Schizachne purpurascens Schizachyrium scoparium ssp. neomexicanum Schizachyrium scoparium ssp. scoparium Schoenoplectus acutus Schoenoplectus acutus x tabernaemontani Schoenoplectus hallii Schoenoplectus heterochaetus Schoenoplectus pungens Schoenoplectus saximontanus Schoenoplectus tabernaemontani Scilla sibirica Scirpus atrovirens Scirpus cyperinus Scirpus microcarpus Scirpus pallidus Scirpus pendulus Scleranthus annuus, 1995 Scleria triglomerata Sclerochloa dura, 1982 Scolochloa festucacea Scorzonera laciniata Scrophularia lanceolata Scrophularia marilandica Scutellaria brittonii Scutellaria galericulata Scutellaria lateriflora Scutellaria parvula v. missouriensis Scutellaria parvula v. parvula Secale cereale Securigera varia, 1960s Sedum lanceolatum Selaginella rupestris Senecio canus v. canus Senecio canus. v. purshianus Senecio glabellus Senecio integerrimus v. integerrimus Senecio integerrimus v. scribneri Senecio plattensis Senecio pseudaureus v. semicordatus Senecio riddellii Senecio spartioides Senecio tridenticulatus Senecio vulgaris, 1887 Senna marilandica Senna obtusifolia, 1990 Setaria faberi, 1940 Setaria italica, 1876 Setaria pumila, 1886 Setaria verticillata, 1884 Setaria viridis, 1873 Shepherdia argentea Shinnersoseris rostrata Sibara virginica, 1992 Sicyos angulatus Sida spinosa, 1889 Sidalcea neomexicana Sideritis montana Silene antirrhina Silene dichotoma, 1908 Silene drummondii Silene latifolia, 1891 Silene menziesii |
Silene noctiflora, 1885 Silene stellata v. scabrella Silene vulgaris, 1891 Silphium integrifolium v. laeve Silphium laciniatum Silphium perfoliatum Sinapis alba, 1891 Sinapis arvensis, 1927 Sisymbrium altissimum, 1898 Sisymbrium loeselii, 1910 Sisymbrium officinale, 1886 Sisyrinchium campestre Sisyrinchium montanum Sium suave Smilacina racemosa Smilacina stellata Smilax ecirrata Smilax hispida Smilax lasioneura Solanum carolinense Solanum dulcamara, 1895 Solanum elaeagnifolium, 1994 Solanum interius Solanum physalifolium v. nitidibaccatum, 1992 Solanum ptychanthum Solanum rostratum Solanum triflorum Solidago canadensis Solidago flexicaulis Solidago gigantea Solidago missouriensis Solidago mollis Solidago nemoralis ssp, decemflora Solidago petiolaris Solidago rigida Solidago speciosa v. rigidiuscula Solidago ulmifolia Sonchus arvensis v. glabrescens, 1971 Sonchus asper, 1888 Sonchus oleraceus, 1908 Sophora nuttalliana Sorghastrum nutans Sorghum bicolor Sorghum bicolor ssp. drummondii Sorghum halepense Sparganium emersum Sparganium eurycarpum Spartina gracilis Spartina pectinata Spergularia salina, 1992 Spermolepis inermis Sphaeralcea angustifolia v. cuspidata, 1995 Sphaeralcea coccinea Sphenopholis obtusata v. major Sphenopholis obtusata v. obtusata Spiranthes cernua Spiranthes diluvialis Spiranthes lacera Spiranthes magnicamporum Spiranthes romanzoffiana Spiranthes vernalis Spirodela polyrrhiza Sporobolus airoides Sporobolus compositus Sporobolus cryptandrus Sporobolus heterolepis Sporobolus neglectus Sporobolus pyramidatus Sporobolus texanus Sporobolus vaginiflorus Stachys hispida Stachys pilosa v. arenicola Stachys pilosa v. pilosa Stachys tenuifolia Stanleya pinnata Staphylea trifolia Stellaria longifolia Stellaria media, 1888 Stellaria pallida, 1974 Stenosiphon linifolius Stenotus armerioides Stephanomeria runcinata Stipa comata Stipa hymenoides Stipa hymenoides x viridula Stipa robusta Stipa spartea Stipa viridula Strophostyles helvola Strophostyles leiosperma Suaeda calceoliformis Suckleya suckleyana Symphoricarpos albus Symphoricarpos occidentalis Symphoricarpos orbiculatus Syringa vulgaris |
T
| Tamarix chinensis sens. lat. 1975 Tamarix parviflora Tanacetum balsamita Tanacetum vulgare Taraxacum officinale, 1885 Tephrosia virginiana Tetraneuris acaulis Tetraneuris scaposa v. linearis Teucrium canadense (intermediates) Teucrium canadense v. canadense Teucrium canadense v. occidentale Thalictrum dasycarpum Thalictrum venulosum Thelesperma filifolium v. intermedium Thelesperma megapotamicum Thelypodium integrifolium Thelypteris palustris v. pubescens Thermopsis rhombifolia Thlaspi arvense, 1890 Thymelaea passerina, 1950 Tilia americana Torilis arvensis, 1992 Townsendia exscapa Townsendia grandiflora Townsendia hookeri Toxicodendron radicans v. negundo Toxicodendron radicans v. rydbergii Tradescantia bracteata Tradescantia occidentalis Tradescantia ohiensis Tragia ramosa Tragopogon dubius, 1910 |
Tragopogon porrifolius, 1892 Tragopogon pratensis, 1891 Triadenum fraseri Tribulus terrestris, 1896 Trichostema brachiatum Tridens flavus Trifolium campestre, 1974 Trifolium fragiferum, 1963 Trifolium hybridum, 1888 Trifolium incarnatum Trifolium pratense, 1892 Trifolium reflexum Trifolium repens, 1873 Triglochin maritima Triglochin palustris Trillium nivale Triodanis biflora Triodanis holzingeri Triodanis leptocarpa Triodanis perfoliata Triosteum perfoliatum v. aurantiacum Triosteum perfoliatum v. perfoliatum Triphora trianthophora Triplasis purpurea Tripsacum dactyloides Tripterocalyx micranthus Triticum aestivum Typha angustifolia Typha domingensis Typha latifolia Typha x glauca |
U
| Ulmus americana Ulmus pumila, 1890s Ulmus rubra Ulmus thomasii |
Ulmus x notha Urtica dioica ssp. gracilis Utricularia macrorhiza Utricularia minor |
V
| Vaccaria hispanica, 1892 Vallisneria americana Verbascum blattaria, 1934 Verbascum thapsus, 1885 Verbena bipinnatifida Verbena bracteata Verbena canadensis Verbena hastata Verbena simplex Verbena stricta Verbena urticifolia Verbesina alternifolia Verbesina encelioides v. exauriculata Vernonia baldwinii ssp. interior Vernonia fasciculata ssp. corymbosa Vernonia fasciculata ssp. fasciculata Veronica x lackschewitzii Veronica americana Veronica anagallis-aquatica, 1934 Veronica arvensis, 1974 Veronica biloba, 1989 Veronica catenata Veronica hederifolia, 1970 Veronica peregrina v. peregrina Veronica peregrina v. xalapensis Veronica persica, 1878 Veronica polita, 1966 Veronicastrum virginicum Viburnum lentago |
Viburnum opulus Vicia americana v. americana Vicia americana v. minor Vicia villosa v. glabrescens Vicia villosa v. villosa Vinca minor Viola adunca Viola arvensis, 1909 Viola bicolor Viola canadensis v. rugulosa Viola lanceolata Viola missouriensis Viola nephrophylla Viola nuttallii Viola odorata, 1988 Viola palmata Viola pedata Viola pedatifida Viola pedatifida x sororia Viola pubescens v. eriocarpa Viola sororia Viola striata, 1974 Viola tricolor, 1915 Viola vallicola Vitis aestivalis Vitis cinerea Vitis riparia Vitis vulpina Vulpia octoflora |
W
| Wolffia borealis Wolffia brasiliensis Wolffia columbiana |
Woodsia obtusa Woodsia oregana ssp. cathcartiana |
X
| Xanthisma grindelioides Xanthisma spinulosum v. glaberrimum Xanthisma spinulosum v. spinulosum |
Xanthium spinosum, 1934 Xanthium strumarium v. canadense Xyris torta |
Y
| Yucca filamentosa | Yucca glauca |
Z
| Zannichellia palustris Zanthoxylum americanum Zea mays Zigadenus elegans |
Zigadenus venenosus v. gramineus Zizania palustris v. interior Zizia aurea Zosterella dubia |
