Central Taxonomic Thesaurus

Plantae

Tracheophyta

[Tracheobionta]

Spermatophyta

Magnoliophyta

[Angiospermae]

Eudicots

Core Eudicots

Rosids

Fabids

Fagales

Betulaceae

Alnus

[Alnaster]

Alnus acuminata

Alnus acuminata subsp. acuminata

[Alnus mirbelii]

Alnus acuminata subsp. arguta

[Alnus guatemalensis]

[Alnus jorullensis f. media]

[Alnus ovalifolia]

Alnus acuminata subsp. glabrata

[Alnus glabrata subsp. durangensis]

[Alnus glabrata var. durangensis]

Alnus alnobetula

Alnus alnobetula subsp. alnobetula

Alnus alnobetula subsp. crispa

[Alnus crispa f. stragula]

[Alnus crispa var. harricanensis]

[Alnus mitchelliana]

Alnus alnobetula subsp. fruticosa

[Alnus fruticosa]

Alnus alnobetula subsp. sinuata

[Alnus alnobetula var. stenophylla]

[Alnus crispa var. sinuata]

[Alnus fruticosa var. sinuata]

Alnus alnobetula var. crispa

Alnus alnus

Alnus arguta

Alnus arguta var. arguta

Alnus arguta var. cuprea

Alnus arguta var. subsericea

Alnus cordata

[Alnus cordifolia]

Alnus cremastogyne

Alnus crispa

Alnus crispa ssp. crispa

Alnus crispa subsp. crispa

Alnus crispa subsp. laciniata

Alnus crispa subsp. sinuata

Alnus crispa var. crispa

Alnus crispa var. elongata

Alnus crispa var. mollis

Alnus densiflora

Alnus elliptica

Alnus fallacina

Alnus fauriei

Alnus ferruginea

Alnus firma

[Alnus firma var. hirtella]

Alnus firma var. multinervis

Alnus firmifolia

Alnus formosana

Alnus glabrata

Alnus glauca

Alnus glutinosa

[Alnus vulgaris]

[Betula alnus var. glutinosa]

[Betula glutinosa]

Alnus glutinosa subsp. barbata

[Alnus barbata]

[Alnus glutinosa var. barbata]

Alnus glutinosa subsp. glutinosa

[Alnus glutinosa f. laciniata]

[Alnus glutinosa f. rubrinervia]

[Alnus glutinosa var. imperialis]

Alnus glutinosa var. incisa

Alnus glutinosa var. laciniata

Alnus henryi

Alnus hirsuta

[Alnus hirsuta var. sibirica]

[Alnus incana var. glauca]

[Alnus sibirica var. hirsuta]

[Alnus sibirica]

[Alnus tinctoria]

Alnus hybrida

Alnus incana

[Betula incana]

Alnus incana subsp. incana

[Alnus incana var. borealis]

[Alnus incana var. glabra]

[Alnus tenuifolia f. incisa]

Alnus incana subsp. rugosa

[Alnus americana]

[Alnus incana f. tomophylla]

[Alnus rugosa f. emersoniana]

[Alnus rugosa f. hypomalaca]

[Alnus rugosa f. tomophylla]

[Betula rugosa]

Alnus incana subsp. tenuifolia

[Alnus incana var. occidentalis]

[Alnus incana var. virescens]

[Alnus tenuifolia]

[Alnus x purpusii]

Alnus incana var. americana

Alnus incana var. serrulata

Alnus inokumai

Alnus japonica

[Alnus japonica var. koreana]

Alnus jorullenis

Alnus jorullensis

Alnus jorullensis subsp. jorullensis

Alnus jorullensis subsp. lutea

[Alnus jorullensis var. liebmannii]

Alnus jorullensis var. exigua

Alnus mandshurica

[Alnus fruticosa var. mandshurica]

Alnus maritima

[Alnus maritima subsp. georgiensis]

[Alnus maritima subsp. oklahomensis]

[Alnus maritime]

Alnus maritima subsp. maritima

Alnus maritima subsp. metoporina

Alnus maritima var. metoporina

Alnus matsumurae

Alnus maximowiczii

[Alnus viridis subsp. maximowiczii]

Alnus metoporina

Alnus mollis

Alnus nepalensis

Alnus nitida

Alnus noveboracensis

Alnus oblongifolia

Alnus oregona

Alnus oregona var. pinnatisecta

Alnus orientalis

Alnus pendula

Alnus pringlei

Alnus pubescens

Alnus rhombifolia

[Alnus rhombifolia var. bernardina]

Alnus rhombifolia var. ovalis

Alnus rhombifolia var. rhombifolia

Alnus rubra

[Alnus oregana]

Alnus rugosa

Alnus rugosa var. americana

Alnus rugosa var. rugosa

Alnus serrulata

[Alnus autumnalis]

[Alnus serrulata f. emarginata]

[Alnus serrulata f. mollescens]

[Alnus serrulata f. nanella]

[Alnus serrulata var. vulgaris]

Alnus serrulata f. noveboracensis

Alnus serrulata var. serrulata

Alnus serrulata var. subelliptica

Alnus serrulatoides

Alnus sieboldiana

Alnus sinuata

Alnus sitchensis

Alnus subcordata

Alnus trabeculosa

Alnus viridis

Alnus viridis subsp. crispa

Alnus viridis subsp. fruticosa

[Alnus crispa var. fruticosa]

Alnus viridis subsp. sinuata

[Alnaster sinuatus]

Alnus viridis subsp. viridis

Alnus viridis var. crispa

Alnus viridis var. sinuata

Alnus x fallacina

Alnus x hultenii

Alnus × mayrii

Alnus × spuria

Betula

Betula alajica

Betula alaskana

Betula alba

Betula alba var. commutata

Betula alba var. cordifolia

Betula alba var. elobata

Betula albosinensis

Betula alleghaniensis

Betula alleghaniensis var. alleghaniensis

Betula alleghaniensis var. fallax

Betula alleghaniensis var. macrolepis

Betula alnoides

Betula alnus

Betula andrewsii

Betula antarctica

Betula borealis

Betula caerulea

[Betula caerulea var. grandis]

[Betula caerulea-grandis]

Betula carpinifolia

Betula chinensis

Betula cordifolia

[Betula papyrifera subsp. cordifolia]

Betula corylifolia

Betula costata

Betula davurica

Betula divaricata

[Betula middendorffii]

Betula dugleana

Betula dutillyi

Betula eastwoodiae

Betula ermanii

Betula ermanii var. ermanii

[Betula ermanii var. communis]

Betula exilis

Betula fargesii

Betula forrestii

Betula fruticosa

[Betula tatewakiana]

Betula glandulifera

Betula glandulosa

[Betula glandulosa var. rotundifolia]

[Betula rotundifolia]

Betula glandulosa var. glandulifera

Betula glandulosa var. glandulosa

Betula glandulosa var. hallii

Betula glandulosa var. sibirica

Betula grossa

[Betula ulmifolia]

Betula hornei

Betula humilis

Betula jackii

Betula jacquemontii

Betula japonica

Betula jarmolenkoana

Betula kamtschatica

Betula kenaica

Betula kirghisorum

Betula kweichowensis

[Betula insignis]

Betula lanata

[Betula ermanii var. lanata]

Betula lanulosa

Betula lenta

Betula lenta f. lenta

[Betula lenta f. laciniata]

Betula lenta subsp. uber

Betula lenta var. lenta

Betula lenta var. uber

Betula litwinowii

Betula luminifera

Betula lutea

Betula lutea var. fallax

Betula lutea var. macrolepis

Betula mandshurica

Betula mandshurica var. japonica

Betula mandshurica var. kamtschatica

Betula mandshurica var. szechuanica

Betula maximowicziana

Betula medwediewii

Betula michauxii

[Betula nana var. michauxii]

Betula microphylla

Betula minor

[Betula papyracea var. minor]

Betula murrayana

Betula nana

[Betula crenata]

Betula nana subsp. exilis

Betula nana subsp. nana

Betula nana subsp. perfiljevii

Betula nana var. glandulifera

Betula nana var. renifolia

Betula nana var. sibirica

Betula neoalaskana

[Betula ersinifera]

Betula neoalaskana var. kenaica

Betula nigra

[Betula rubra]

Betula occidentalis

[Betula beeniana]

[Betula elrodiana]

[Betula fontinalis]

[Betula obovata]

[Betula occidentalis var. inopina]

[Betula papyrifera subsp. occidentalis]

[Betula papyrifera var. occidentalis]

Betula occidentalis var. fecunda

Betula occidentalis var. occidentalis

Betula odorata

Betula ovalifolia

[Betula gmelinii]

Betula pamirica

Betula papyrifera

[Betula alba var. papyrifera]

[Betula excelsa]

[Betula montanensis]

[Betula papyracea]

[Betula papyrifera f. coriacea]

[Betula papyrifera f. longipes]

[Betula papyrifera var. communis]

[Betula papyrifera var. recessa]

[Betula subcordata]

Betula papyrifera subsp. humilis

Betula papyrifera var. commutata

Betula papyrifera var. cordifolia

Betula papyrifera var. elobata

Betula papyrifera var. humilis

Betula papyrifera var. kenaica

Betula papyrifera var. macrostachya

Betula papyrifera var. minor

Betula papyrifera var. neoalaskana

Betula papyrifera var. papyrifera

Betula papyrifera var. pensilis

Betula papyrifera var. subcordata

Betula pendula

Betula pendula f. dalecarlica

Betula pendula subsp. fontqueri

Betula pendula subsp. mandshurica

[Betula alba var. humilis]

[Betula cajanderi]

Betula pendula subsp. pendula

[Betula aetnensis]

[Betula montana]

[Betula obscura]

[Betula pendula f. youngii]

[Betula pendula var. dalecarlica]

[Betula pendula var. gracilis]

[Betula verrucosa f. dalecarlica]

Betula pendula var. pendula

Betula perfiljevii

Betula piperi

Betula platyphylla

Betula platyphylla subsp. mandshurica

[Betula platyphylla var. mandshurica]

Betula platyphylla var. japonica

Betula platyphylla var. kamtschatica

Betula platyphylla var. platyphylla

Betula platyphylla var. szechuanica

Betula populifolia

[Betula alba var. populifolia]

[Betula populifolia f. incisifolia]

[Betula populifolia var. laciniata]

Betula potaninii

Betula pubescens

Betula pubescens subsp. borealis

Betula pubescens subsp. pubescens

[Betula concinna]

[Betula laciniata]

Betula pubescens subsp. tortuosa

Betula pubescens var. pubescens

[Betula alba var. rhombifolia]

[Betula canadensis]

[Betula dalecarlica]

[Betula rhombifolia]

Betula pumila

[Betula hallii]

Betula pumila var. glabra

Betula pumila var. glandulifera

Betula pumila var. pumila

Betula pumila var. renifolia

Betula raddeana

Betula raymundii

Betula resinifera

Betula sandbergii

Betula sargentii

Betula saxophila

Betula schmidtii

Betula szechuanica

Betula terrae-novae

Betula tianschanica

Betula tortuosa

Betula turkestanica

Betula uber

Betula utahensis

Betula utilis

Betula utilis subsp. jacquemontii

Betula utilis subsp. utilis

[Betula bhojpattra]

Betula utilis var. jacquemontii

Betula utilis var. utilis

Betula verrucosa

Betula winteri

Betula x alpestris

Betula x arbuscula

Betula x caerulea

Betula x caerulea var. caerulea

Betula x caerulea var. cunninghamii

Betula x caerulea var. grandis

Betula x caerulea-grandis

Betula x commixta

Betula x dugleana

Betula x dutillyi

Betula x eastwoodiae

Betula x hornei

Betula x jackii

Betula x neoborealis

Betula x raymundii

Betula x sandbergii

Betula x sargentii

Betula x sukaczewii

Betula x uliginosa

Betula x ungavensis

Betula x utahensis

Betula x winteri

Betula × caerulea

Betula × purpusii

[Betula purpusii]

[Betula x purpusii]

Betula × sandbergii

Betula-alnus

Betula-alnus maritima

Carpinus

Carpinus americana

Carpinus betulus

[Carpinus betulus f. incisa]

[Carpinus betulus var. columnaris]

[Carpinus betulus var. incisa]

Carpinus betulus var. virginiana

Carpinus caroliniana

[Carpinus betulus var. caroliniana]

Carpinus caroliniana caroliniana

Carpinus caroliniana subsp. caroliniana

[Carpinus americanus]

Carpinus caroliniana subsp. virginiana

Carpinus caroliniana var. caroliniana

Carpinus caroliniana var. virginiana

Carpinus cordata

Carpinus cordata var. chinensis

[Carpinus chinensis]

Carpinus erosa

Carpinus faginea

Carpinus fangiana

Carpinus fargesiana

Carpinus fargesiana var. ovalifolia

[Carpinus turczaninovii var. ovalifolia]

Carpinus hebestroma

Carpinus henryana

Carpinus henryana var. oblongifolia

[Carpinus hupeana]

[Carpinus oblongifolia]

Carpinus japonica

[Carpinus carpinoides]

Carpinus kawakamii

Carpinus koreana

Carpinus laxiflora

Carpinus londoniana

Carpinus londoniana var. lanceolata

[Carpinus lanceolata]

Carpinus londoniana var. londoniana

[Carpinus poilanei]

Carpinus orientalis

Carpinus ostrya

Carpinus polyneura

Carpinus rankanensis

Carpinus tropicalis

[Carpinus americanus var. tropicalis]

[Carpinus caroliniana var. tropicalis]

Carpinus tropicalis subsp. tropicalis

Carpinus tschonoskii

Carpinus turczaninovii

Carpinus turczaninowii

[Carpinus coreana]

[Carpinus turczaninowii var. ovalifolia]

Carpinus viminea

[Carpinus fargesii]

[Carpinus laxiflora var. macrostachya]

Carpinus viminea var. chiukiangensis

Carpinus henryana var. simplicidentata

[Carpinus simplicidentata]

Corylus

Corylus americana

[Corylus americana f. missouriensis]

Corylus americana var. indehiscens

Corylus arborescens

Corylus avellana

Corylus avellana subsp. pontica

[Corylus pontica]

Corylus avellana var. avellana

[Corylus avellana var. contorta]

[Corylus avellana var. gibbosa]

[Corylus avellana var. laciniata]

[Corylus avellana var. limbata]

[Corylus avellana var. teretiuscula]

[Corylus memorabilis]

Corylus avellana var. pontica

Corylus californica

Corylus chinensis

Corylus colurna

Corylus colurna var. chinensis

Corylus colurna var. colurna

Corylus cornuta

Corylus cornuta cornuta

Corylus cornuta subsp. californica

Corylus cornuta subsp. cornuta

[Corylus cornuta f. inermis]

Corylus cornuta var. californica

Corylus cornuta var. cornuta

Corylus cornuta var. glandulosa

Corylus fargesii

Corylus ferox

Corylus ferox var. ferox

Corylus ferox var. thibetica

Corylus ferox var. tibetica

[Corylus tibetica]

Corylus heterophylla

Corylus heterophylla var. sutchuenensis

Corylus jacquemontii

[Corylus colurna var. lacera]

Corylus maxima

[Corylus atropurpurea]

[Corylus maxima var. purpurea]

[Corylus rubra]

Corylus rostrata

Corylus rostrata var. californica

Corylus sieboldiana

Corylus sieboldiana var. sieboldiana

[Corylus sieboldiana var. brevirostris]

Corylus thibetica

Corylus vilmorinii

Corylus x colurnoides

Corylus yunnanensis

Corylus sieboldiana var. mandshurica

[Corylus mandshurica]

Duschekia

Duschekia sinuata

Duschekia viridis

Ostrya

Ostrya carpinifolia

Ostrya chisosensis

Ostrya guatemalensis

Ostrya japonica

Ostrya knowltoni

Ostrya knowltonii

[Ostrya knowltonii var. chisosensis]

Ostrya virginiana

[Ostrya virginiana var. glandulosa]

Ostrya virginiana subsp. guatemalensis

[Ostrya mexicana]

[Ostrya virginiana var. guatemalensis]

Ostrya virginiana subsp. virginiana

[Carpinus virginica]

[Ostrya baileyi]

[Ostrya virginiana f. glandulosa]

Ostrya virginiana var. chisosensis

Ostrya virginiana var. lasia

Ostrya virginiana var. virginiana

Ostrya virginica

Ostryopsis

Ostryopsis davidiana