Clone of "Digital Representations of Tree Species Range Maps from "Atlas of United States Trees" by Elbert L. Little, Jr. (and other publications)"
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Clone of Digital Representations of Tree Species Range Maps from "Atlas of United States Trees" by Elbert L. Little, Jr. (and other publications)

This repository contains a clone of the shapefiles and metadata for tree species ranges in the United States that were formerly available from the USGS at https://gec.cr.usgs.gov/data/little/. The data were removed in the spring/summer of 2017.

The source data for this repo come from an archived copy of the website from 27 January 2017 available at: https://web.archive.org/web/20170127093428/https://gec.cr.usgs.gov/data/little/

PDFs of the range maps are not available in this repo, but may be found on the archived website.

Zipped shapefiles were unzipped and grouped into subfolders in the SHP/ directory following the original file naming convention.

SHP projection information (see Metadata.shtml for more information):

  • Horizontal_Datum_Name: North American Datum of 1927
  • Ellipsoid_Name: Clarke 1866
  • Semi-major_Axis: 6378206.4
  • Denominator_of_Flattening_Ratio: 294.98
  • EPSG:4267 (https://epsg.io/4267)

UPDATE

I emailed Peter Schweitzer (USGS), the designated contact on the metadata, on 29 August 2016. As part of his reply, he included a response to another user's query:

We have discontinued serving the Elbert Little tree species maps. We refer queries by users the following sources for newer data:

https://www.fs.usda.gov/rds/archive/Product/RDS-2013-0013

https://www.fs.fed.us/nrs/atlas/littlefia/

Our decision to stop serving the Little maps was threefold: 1) because reorganization of our web space made it more difficult to continue hosting the maps; 2) it has been pointed out to me that there are digitizing errors in some of the shapefiles - I don't know which ones, and we don't have the resources or need, frankly, to correct them; and 3) we were made aware that the Forest Service is employing newer methodologies for quantifying and mapping tree species distribution, and we defer to them as experts in the field.

Species list

Note that the pattern for filename is generally the first four letters of the genus and species epithet. In the case of name collisions and other deviations, the filename used in the original database is given with an asterisk (*).

Species SHP/ subfolder
Abies amabilis abieamab
Abies balsamea abiebals
Abies bracteata abiebrac
Abies concolor abieconc
Abies fraseri abiefras
Abies grandis abiegran
Abies lasiocarpa abielasi
Abies magnifica abiemagn
Abies procera abieproc
Acacia berlandieri acacberl
Acacia choriophylla acacchor
Acacia farnesiana acacfarn
Acacia greggii acacgreg
Acacia macracantha acacmacr
Acacia rigidula acacrigi
Acacia roemeriana acacroem
Acacia tortuosa acactort
Acacia wrightii acacwrig
Acer barbatum acerbarb
Acer circinatum acercirc
Acer glabrum acerglab
Acer grandidentatum acergran
Acer leucoderme acerleuc
Acer macrophyllum acermacr
Acer negundo acernegu
Acer nigrum acernigr
Acer pensylvanicum acerpens
Acer rubrum acerrubr
Acer saccharinum acersacc
Acer saccharum acersacr*
Acer spicatum acerspic
Acoelorrhaphe wrightii acoewrig
Aesculus californica aesccali
Aesculus glabra aescglab
Aesculus octandra aescocta
Aesculus parviflora aescparv
Aesculus pavia aescpavi
Aesculus sylvatica aescsylv
Agave utahensis agavutah
Alnus maritima alnumari
Alnus oblongifolia alnuoblo
Alnus rhombifolia alnurhom
Alnus rubra alnurubr
Alnus rugosa alnurugo
Alnus serrulata alnuserr
Alnus sinuata alnusinu
Alnus tenuifolia alnutenu
Alvaradoa amorphoides alvaamor
Amelanchier alnifolia amelalni
Amelanchier arborea amelarbo
Amelanchier interior amelinte
Amelanchier sanguinea amelsang
Amelanchier utahensis amelutah
Amphitecna latifolia amphlati
Amyris balsamifera amyrbals
Amyris elemifera amyrelem
Annona glabra annoglab
Aralia spinosa aralspin
Arbutus arizonica arbuariz
Arbutus menziesii arbumenz
Arbutus texana arbutexa
Arctostaphylos pringlei arctprin
Ardisia escallonioides ardiesca
Artemisia tridentata artetrid
Asimina parviflora asimparv
Asimina triloba asimtril
Avicennia germinans avicgerm
Baccharis halimifolia bacchali
Betula alleghaniensis betualle
Betula lenta betulent
Betula nana betunana
Betula nigra betunigr
Betula occidentalis betuocci
Betula papyrifera betupapy
Betula populifolia betupopu
Betula uber betuuber
Bourreria ovata bourovat
Bourreria radula bourradu
Bumelia celastrina bumecela
Bumelia lanuginosa bumelanu
Bumelia lycioides bumelyci
Bumelia tenax bumetena
Bursera fagaroides bursfaga
Bursera microphylla bursmicr
Bursera simaruba burssima
Byrsonima lucida byrsluci
Caesalpinia mexicana caesmexi
Calyptranthes pallens calypall
Calyptranthes zuzygium calyzuzy
Canella winterana canewint
Canotia holacantha canoholo*
Capparis cynophallophora cappcyno
Capparis flexuosa cappflex
Carpinus caroliniana carpcaro
Carya aquatica caryaqua
Carya cordiformis carycord
Carya floridana caryflor
Carya glabra caryglab
Carya illinoensis caryilli
Carya laciniosa carylaci
Carya myristicaeformis carymyri
Carya ovata caryovat
Carya pallida carypall
Carya texana carytexa
Carya tomentosa carytome
Castanea alnifolia castalni
Castanopsis chrysophylla castchry
Castanea dentata castdent
Castanea ozarkensis castozar
Castanea pumila castpumi
Catalpa bignonioides catabign
Catalpa speciosa cataspec
Ceanothus arboreus ceanarbo
Ceanothus spinosus ceanspin
Ceanothus thyrsiflorus ceanthyr
Celtis laevigata celtlaev
Celtis lindheimeri celtlind
Celtis occidentalis celtocci
Celtis reticulata celtreti
Celtis tenuifolia celttenu
Cephalanthus occidentalis cephocci
Cercocarpus betuloides cercbetu
Cercocarpus breviflorus cercbrev
Cercis canadensis cerccana
Cercidium floridum cercflor
Cercocarpus ledifolius cercledi
Cercidium macrum cercmacr
Cercidium microphyllum cercmicr
Cercis occidentalis cercocci
Cercocarpus traskiae cerctras
Cereus giganteus ceregiga
Cereus robinii cererobi
Chamaecyparis lawsoniana chamlaws
Chamaecyparis nootkatensis chamnoot
Chamaecyparis thyoides chamthyo
Chilopsis linearis chilline
Chionanthus virginicus chiovirg
Chrysobalanus icaco chryicac
Chrysophyllum oliviforme chryoliv
Citharexylum berlandieri cithberl
Citharexylum fruticosum cithfrut
Cladrastis kentukea cladkent
Clethra acuminata cletacum
Cliftonia monophylla clifmono
Clusia rosea clusrose
Coccothrinax argentata coccarge
Coccoloba diversifolia coccdive
Coccoloba uvifera coccuvif
Colubrina arborescens coluarbo
Colubrina cubensis colucube
Colubrina elliptica coluelli
Condalia globosa condglob
Condalia hookeri condhook
Conocarpus erectus conoerec
Cordia boissieri cordbois
Cordia sebestena cordsebe
Cornus alternifolia cornalte
Cornus drummondii corndrum
Cornus florida cornflor
Cornus glabrata cornglab
Cornus nuttallii cornnutt
Cornus occidentalis cornocci
Cornus racemosa cornrace
Cornus rugosa cornrugo
Cornus sessilis cornsess
Cornus stolonifera cornstol
Cornus stricta cornstri
Corylus cornuta corycorn
Cotinus obovatus cotiobov
Cowania mexicana cowamexi
Crataegus chrysocarpa cratchry
Crataegus columbiana cratcolu
Crataegus douglasii cratdoug
Crataegus erythropoda crateryt
Crataegus saligna cratsali
Crataegus succulenta cratsucc
Crataegus tracyi crattrac
Crossopetalum rhacoma crosrhac
Cupania glabra cupaglab
Cupressus arizonica cuprariz
Cupressus bakeri cuprbake
Cupressus goveniana cuprgove
Cupressus guadalupensis cuprguad
Cupressus macnabiana cuprmacn
Cupressus macrocarpa cuprmacr
Cupressus sargentii cuprsarg
Cyrilla racemiflora cyrirace
Dalea spinosa dalespin
Diospyros texana diostexa
Diospyros virginiana diosvirg
Dipholis salicifolia diphsali
Dodonaea viscosa dodovisc
Drypetes diversifolia drypdive
Drypetes lateriflora dryplate
Ehretia anacua ehreanac
Elliottia racemosa ellirace
Erythrina flabelliformis erytflab
Erythrina herbacea erytherb
Esenbeckia berlandieri esenberl
Eugenia axillaris eugeaxil
Eugenia confusa eugeconf
Eugenia foetida eugefoet
Eugenia rhombea eugerhom
Euonymus atropurpureus euonatro
Euonymus occidentalis euonocci
Exostema caribaeum exoscari
Exothea paniculata exotpani
Eysenhardtia polystachya eysepoly
Eysenhardtia texana eysetexa
Fagus grandifolia fagugran
Ficus aurea ficuaure
Ficus citrifolia ficucitr
Forestiera acuminata foreacum
Forestiera angustifolia foreangu
Forestiera phillyreoides forephil
Forestiera segregata foresegr
Franklinia alatamaha franalat
Fraxinus americana fraxamer
Fraxinus anomala fraxanom
Fraxinus berlandieriana fraxberl
Fraxinus caroliniana fraxcaro
Fraxinus cuspidata fraxcusp
Fraxinus dipetala fraxdipe
Fraxinus gooddingii fraxgood
Fraxinus greggii fraxgreg
Fraxinus latifolia fraxlati
Fraxinus nigra fraxnigr
Fraxinus papillosa fraxpapi
Fraxinus pennsylvanica fraxpenn
Fraxinus profunda fraxprof
Fraxinus quadrangulata fraxquad
Fraxinus texensis fraxtexe
Fraxinus velutina fraxvelu
Fremontodendron californicum fremcali
Fremontodendron mexicanum fremmexi
Garrya elliptica garrelli
Genipa clusiifolia geniclus
Gleditsia aquatica gledaqua
Gleditsia triacanthos gledtria
Gordonia lasianthus gordlasi
Guaiacum angustifolium guaiangu
Guaiacum sanctum guaisanc
Guapira discolor guapdisc
Guettarda elliptica guetelli
Guettarda scabra guetscab
Gyminda latifolia gymilati
Gymnocladus dioicus gymndioi
Gymnanthes lucida gymnluci
Halesia carolina halecaro
Halesia diptera haledipt
Halesia parviflora haleparv
Hamamelis virginiana hamavirg
Hamelia patens hamepate
Helietta parvifolia heliparv
Hippomane mancinella hippmanc
Holacantha emoryi holaemor
Hypelate trifoliata hypetrif
Ilex ambigua ilexambi
Ilex amelanchier ilexamel
Ilex cassine ilexcass
Ilex coriacea ilexcori
Ilex decidua ilexdeci
Ilex krugiana ilexkrug
Ilex laevigata ilexlaev
Ilex longipes ilexlong
Ilex montana ilexmont
Ilex myrtifolia ilexmyrt
Ilex opaca ilexopac
Ilex verticillata ilexvert
Ilex vomitoria ilexvomi
Illicium floridanum illiflor
Illicium parviflorum illiparv
Jacquinia keyensis jacqkeye
Juglans californica juglcali
Juglans cinerea juglcine
Juglans hindsii juglhind
Juglans major juglmajo
Juglans microcarpa juglmicr
Juglans nigra juglnigr
Juniperus ashei juniashe
Juniperus californica junicali
Juniperus communis junicomm
Juniperus deppeana junidepp
Juniperus erythrocarpa junieryt
Juniperus flaccida juniflac
Juniperus horizontalis junihori
Juniperus monosperma junimono
Juniperus occidentalis juniocci
Juniperus osteosperma junioste
Juniperus pinchotii junipinc
Juniperus scopulorum juniscop
Juniperus silicicola junisili
Juniperus virginiana junivirg
Kalmia latifolia kalmlati
Koeberlinia spinosa koebspin
Krugiodendron ferreum krugferr
Laguncularia racemosa lagurace
Larix laricina larilari
Larix lyallii larilyal
Larix occidentalis lariocci
Larrea divaricata larrdiva
Leitneria floridana leitflor
Leucaena pulverulenta leucpulv
Leucaena retusa leucretu
Libocedrus decurrens libodecu
Licaria triandra licatria
Liquidambar styraciflua liqustyr
Liriodendron tulipifera lirituli
Lithocarpus densiflorus lithdens
Lyonia ferruginea lyonferr
Lyonothamnus floribundus lyonflor
Lysiloma latisiliquum lysilati
Lysiloma microphylla lysimicr
Maclura pomifera maclpomi
Magnolia acuminata magnacum
Magnolia ashei magnashe
Magnolia fraseri magnfras
Magnolia grandiflora magngran
Magnolia macrophylla magnmacr
Magnolia pyramidata magnpyra
Magnolia tripetala magntrip
Magnolia virginiana magnvirg
Malus angustifolia maluangu
Malus coronaria malucoro
Malus diversifolia maludive
Malus ioensis maluioen
Manilkara bahamensis manibaha
Mastichodendron foetidissimum mastfoet
Maytenus phyllanthoides maytphyl
Metopium toxiferum metotoxi
Morus microphylla morumicr
Morus rubra morurubr
Myrcianthes fragrans myrcfrag
Myrica californica myricali
Myrica cerifera myriceri
Myrica heterophylla myrihete
Myrica inodora myriinod
Myrica pensylvanica myripens
Nectandra coriacea nectcori
Nemopanthus collinus nemocoll
Nolina bigelovii nolibige
Nyssa aquatica nyssaqua
Nyssa ogeche nyssogec
Nyssa sylvatica nysssylv
Olneya tesota olneteso
Opuntia fulgida opunfulg
Osmanthus americanus osmaamer
Ostrya chisosensis ostrchis
Ostrya knowltonii ostrknow
Ostrya virginiana ostrvirg
Oxydendrum arboreum oxydarbo
Parkinsonia aculeata parkacul
Persea borbonia persborb
Photinia arbutifolia photarbu
Picea breweriana picebrew
Picea chihuahuana picechih
Picea engelmannii piceenge
Picea glauca piceglau
Picea mariana picemari
Picea pungens picepung
Picea rubens picerube
Picea sitchensis picesitc
Picramnia pentandra picrpent
Pinckneya pubens pincpube
Pinus albicaulis pinualbi
Pinus aristata pinuaris
Pinus attenuata pinuatte
Pinus ayacahuite pinuayac
Pinus balfouriana pinubalf
Pinus banksiana pinubank
Pinus caribaea pinucari
Pinus cembroides pinucemb
Pinus clausa pinuclau
Pinus contorta pinucont
Pinus cooperi pinucoop
Pinus coulteri pinucoul
Pinus cubensis pinucube
Pinus culminicola pinuculm
Pinus douglasiana pinudoug
Pinus durangensis pinudura
Pinus echinata pinuechi
Pinus edulis pinuedul
Pinus elliottii pinuelli
Pinus engelmannii pinuenge
Pinus flexilis pinuflex
Pinus glabra pinuglab
Pinus greggii pinugreg
Pinus hartwegii pinuhart
Pinus jeffreyi pinujeff
Pinus lambertiana pinulamb
Pinus lawsonii pinulaws
Pinus leiophylla pinuleio
Pinus longaeva pinulong
Pinus lumholtzii pinulumh
Pinus maximartinezii pinumaxi
Pinus michoacana pinumich
Pinus monophylla pinumono
Pinus monticola pinumont
Pinus montezumae pinumtez*
Pinus muricata pinumuri
Pinus nelsonii pinunels
Pinus occidentalis pinuocci
Pinus oocarpa pinuooca
Pinus palustris pinupalu
Pinus patula pinupatu
Pinus pinceana pinupinc
Pinus ponderosa pinupond
Pinus pringlei pinuprin
Pinus pseudostrobus pinupseu
Pinus pungens pinupung
Pinus quadrifolia pinuquad
Pinus radiata pinuradi
Pinus resinosa pinuresi
Pinus rigida pinurigi
Pinus sabiniana pinusabi
Pinus serotina pinusero
Pinus strobus pinustrb*
Pinus strobiformis pinustro
Pinus taeda pinutaed
Pinus teocote pinuteoc
Pinus torreyana pinutorr
Pinus tropicalis pinutrop
Pinus virginiana pinuvirg
Pinus washoensis pinuwash
Piscidia piscipula piscpisc
Pisonia rotundata pisorotu
Pistacia texana pisttexa
Pithecellobium flexicaule pithflex
Pithecellobium guadalupense pithguad
Pithecellobium pallens pithpall
Pithecellobium unguis-cati pithungu
Planera aquatica planaqua
Platanus occidentalis platocci
Platanus racemosa platrace
Platanus wrightii platwrig
Populus angustifolia popuangu
Populus arizonica popuariz
Populus balsamifera popubals
Populus deltoides popudelt
Populus fremontii popufrem
Populus grandidentata popugran
Populus heterophylla popuhete
Populus hinckleyana popuhinc
Populus tremuloides poputrem
Populus trichocarpa poputric
Prosopis juliflora prosjuli
Prosopis pubescens prospube
Prunus alleghaniensis prunalle
Prunus americana prunamer
Prunus angustifolia prunangu
Prunus caroliniana pruncaro
Prunus emarginata prunemar
Prunus fremontii prunfrem
Prunus hortulana prunhort
Prunus ilicifolia prunilic
Prunus lyonii prunlyon
Prunus mexicana prunmexi
Prunus munsoniana prunmuns
Prunus myrtifolia prunmyrt
Prunus nigra prunnigr
Prunus pensylvanica prunpens
Prunus serotina prunsero
Prunus subcordata prunsubc
Prunus umbellata prunumbe
Prunus virginiana prunvirg
Pseudotsuga macrocarpa pseumacr
Pseudotsuga menziesii pseumenz
Pseudophoenix sargentii pseusarg
Psidium longipes psidlong
Ptelea crenulata ptelcren
Ptelea trifoliata pteltrif
Quercus agrifolia queragri
Quercus ajoensis querajoe
Quercus alba queralba
Quercus arizonica querariz
Quercus arkansana querarka
Quercus bicolor querbico
Quercus chapmanii querchap
Quercus chrysolepis querchry
Quercus coccinea quercocc
Quercus douglasii querdoug
Quercus dunnii querdunn
Quercus durandii querdura
Quercus ellipsoidalis querelli
Quercus emoryi queremor
Quercus engelmannii querenge
Quercus falcata querfalc
Quercus gambelii quergamb
Quercus garryana quergarr
Quercus georgiana quergeor
Quercus glaucoides querglau
Quercus graciliformis quergrac
Quercus gravesii quergrav
Quercus grisea quergris
Quercus havardii querhava
Quercus hypoleucoides querhypo
Quercus ilicifolia querilic
Quercus imbricaria querimbr
Quercus incana querinca
Quercus kelloggii querkell
Quercus laevis querlaev
Quercus laurifolia querlaur
Quercus lobata querloba
Quercus lyrata querlyra
Quercus macdonaldii quermacd
Quercus macrocarpa quermacr
Quercus marilandica quermari
Quercus michauxii quermich
Quercus mohriana quermohr
Quercus muehlenbergii quermueh
Quercus myrtifolia quermyrt
Quercus nigra quernigr
Quercus nuttallii quernutt
Quercus oblongifolia queroblo
Quercus oglethorpensis querogle
Quercus palustris querpalu
Quercus phellos querphel
Quercus prinus querprin
Quercus pungens querpung
Quercus rubra querrubr
Quercus rugosa querrugo
Quercus shumardii quershum
Quercus stellata querstel
Quercus tomentella quertome
Quercus toumeyi quertoum
Quercus turbinella querturb
Quercus velutina quervelu
Quercus virginiana quervirg
Quercus wislizeni querwisl
Rapanea punctata rapapunc
Reynosia septentrionalis reynsept
Rhamnus betulaefolia rhambetu
Rhamnus californica rhamcali
Rhamnus caroliniana rhamcaro
Rhamnus crocea rhamcroc
Rhamnus purshiana rhampurs
Rhizophora mangle rhizmang
Rhododendron catawbiense rhodcata
Rhododendron macrophyllum rhodmacr
Rhododendron maximum rhodmaxi
Rhus choriophylla rhuschor
Rhus copallina rhuscopa
Rhus glabra rhusglab
Rhus integrifolia rhusinte
Rhus kearneyi rhuskear
Rhus lanceolata rhuslanc
Rhus laurina rhuslaur
Rhus microphylla rhusmicr
Rhus ovata rhusovat
Rhus typhina rhustyph
Robinia kelseyi robikels
Robinia neomexicana robineom
Robinia pseudoacacia robipseu
Robinia viscosa robivisc
Roystonea elata royselat
Sabal mexicana sabamexi
Sabal minor sabamino
Sabal palmetto sabapalm
Salix alaxensis salialax
Salix amygdaloides saliamyg
Salix arbusculoides saliarbu
Salix bebbiana salibebb
Salix bonplandiana salibonp
Salix caroliniana salicaro
Salix discolor salidisc
Salix exigua saliexig
Salix floridana saliflor
Salix fluviatilis salifluv
Salix geyeriana saligeye
Salix hindsiana salihind
Salix hookeriana salihook
Salix laevigata salilaev
Salix lasiandra salilasi
Salix lasiolepis salilaso*
Salix lucida saliluci
Salix mackenzieana salimack
Salix nigra salinigr
Salix pellita salipell
Salix petiolaris salipeti
Salix pyrifolia salipyri
Salix scouleriana saliscou
Salix sericea saliseri
Salix sessilifolia salisess
Salix sitchensis salisitc
Salix taxifolia salitaxi
Salix tracyi salitrac
Sambucus callicarpa sambcall
Sambucus canadensis sambcana
Sambucus glauca sambglau
Sambucus melanocarpa sambmela
Sambucus mexicana sambmexi
Sambucus velutina sambvelu
Sapium biloculare sapibilo
Sapindus drummondii sapidrum
Sapindus saponaria sapisapo
Sassafras albidum sassalbi
Savia bahamensis savibaha
Schaefferia frutescens schafrut
Schoepfia chrysophylloides schochry
Sequoiadendron giganteum sequgiga
Sequoia sempervirens sequsemp
Serenoa repens sererepe
Shepherdia argentea sheparge
Simarouba glauca simaglau
Solanum erianthum solaeria
Sophora affinis sophaffi
Sophora secundiflora sophsecu
Sorbus americana sorbamer
Sorbus decora sorbdeco
Sorbus scopulina sorbscop
Sorbus sitchensis sorbsitc
Staphylea bolanderi stapbola
Staphylea trifolia staptrif
Stewartia malacodendron stewmala
Stewartia ovata stewovat
Styrax americana styramer
Styrax grandifolia styrgran
Styrax platanifolia styrplat
Suriana maritima surimari
Swietenia mahagoni swiemaha
Symplocos tinctoria symptinc
Taxodium distichum taxodist
Taxodium mucronatum taxomucr
Taxus brevifolia taxubrev
Taxus canadensis taxucana
Taxus floridana taxuflor
Tetrazygia bicolor tetrbico
Thrinax morrisii thrimorr
Thrinax radiata thriradi
Thuja occidentalis thujocci
Thuja plicata thujplic
Tilia americana tiliamer
Tilia caroliniana tilicaro
Tilia heterophylla tilihete
Torreya californica torrcali
Torreya taxifolia torrtaxi
Toxicodendron vernix toxivern
Trema lamarckiana tremlama
Trema micrantha tremmicr
Tsuga canadensis tsugcana
Tsuga caroliniana tsugcaro
Tsuga heterophylla tsughete
Tsuga mertensiana tsugmert
Ulmus alata ulmualat
Ulmus americana ulmuamer
Ulmus crassifolia ulmucras
Ulmus rubra ulmurubr
Ulmus serotina ulmusero
Ulmus thomasii ulmuthom
Umbellularia californica umbecali
Ungnadia speciosa ungnspec
Vaccinium arboreum vaccarbo
Vauquelinia californica vauqcali
Vauquelinia pauciflora vauqpauc
Viburnum lentago vibulent
Viburnum nudum vibunudu
Viburnum obovatum vibuobov
Viburnum prunifolium vibuprun
Viburnum rufidulum viburufi
Viburnum trilobum vibutril
Washingtonia filifera washfili
Ximenia americana ximeamer
Yucca aloifolia yuccaloi
Yucca brevifolia yuccbrev
Yucca carnerosana yucccarn
Yucca elata yuccelat
Yucca faxoniana yuccfaxo
Yucca gloriosa yuccglor
Yucca mohavensis yuccmoha
Yucca rostrata yuccrost
Yucca schottii yuccscho
Yucca torreyi yucctorr
Yucca treculeana yucctrec
Zanthoxylum americanum zantamer
Zanthoxylum clava-herculis zantclav
Zanthoxylum coriaceum zantcori
Zanthoxylum fagara zantfaga
Zanthoxylum flavum zantflav
Zanthoxylum hirsutum zanthirs