| argentina | | trema micrantha | species | 5 | 0 |
| armenia | | celtis tournefortii var. glabrata | varietas | 2 | 0 |
| australia | | aphananthe philippinensis | species | 1 | 0 |
| australia | | celtis paniculata | species | 1 | 0 |
| australia | | trema aspera | species | 7 | 0 |
| australia | | trema orientalis | species | 1 | 0 |
| australia | queensland | aphananthe philippinensis | species | 3 | 0 |
| australia | queensland | celtis paniculata | species | 3 | 0 |
| australia | queensland | trema orientalis | species | 4 | 0 |
| australia | queensland | trema tomentosa | species | 5 | 0 |
| bahamas | | trema lamarckiana | species | 5 | 0 |
| bangladesh | | trema tomentosa | species | 5 | 0 |
| belgium | flemish region | ulmus laevis | species | 1 | 0 |
| belize | | celtis iguanaea | species | 2 | 0 |
| belize | | trema domingense | species | 13 | 0 |
| belize | | trema micrantha | species | 19 | 0 |
| bhutan | | trema politoria | species | 5 | 0 |
| bolivia | | ampelocera ruizii | species | 1 | 0 |
| bolivia | | celtis schippii | species | 1 | 0 |
| bolivia | | phyllostylon rhamnoides | species | 3 | 0 |
| bolivia | | trema micrantha | species | 20 | 0 |
| brazil | | celtis iguanaea | species | 3 | 0 |
| brazil | | celtis schippii | species | 1 | 0 |
| brazil | | celtis tala | species | 3 | 0 |
| brazil | | trema micrantha | species | 5 | 0 |
| brazil | rio de janeiro | trema micrantha | species | 0 | 1 |
| brazil | sao paulo | trema micrantha | species | 2 | 1 |
| brunei | temburong district | gironniera sp. jh-2017 | species | 2 | 0 |
| cambodia | kampong thom province | trema orientalis | species | 2 | 0 |
| cameroon | | trema orientalis | species | 5 | 0 |
| canada | alberta | ulmus rubra | species | 2 | 0 |
| canada | british columbia | ulmus pumila | species | 1 | 0 |
| canada | ontario | celtis occidentalis | species | 1 | 0 |
| canada | ontario | ulmus americana | species | 6 | 0 |
| canada | ontario | ulmus glabra | species | 4 | 0 |
| canada | ontario | ulmus minor | species | 4 | 0 |
| canada | ontario | ulmus parvifolia | species | 1 | 0 |
| canada | ontario | ulmus procera | species | 4 | 0 |
| canada | ontario | ulmus pumila | species | 7 | 0 |
| canada | ontario | ulmus rubra | species | 5 | 0 |
| canada | ontario | ulmus sp. asm-2014 | species | 1 | 0 |
| canada | ontario | ulmus sp. bioug24049-g09 | species | 1 | 0 |
| canada | ontario | ulmus thomasii | species | 4 | 0 |
| canada | quebec | celtis occidentalis | species | 3 | 0 |
| canada | quebec | ulmus americana | species | 2 | 0 |
| canada | quebec | ulmus rubra | species | 2 | 0 |
| canada | quebec | ulmus thomasii | species | 1 | 0 |
| china | | celtis biondii var. heterophylla | varietas | 1 | 0 |
| china | | celtis bungeana | species | 1 | 0 |
| china | | celtis julianae | species | 2 | 0 |
| china | | celtis koraiensis | species | 3 | 0 |
| china | | celtis sinensis | species | 3 | 0 |
| china | | celtis tetrandra | species | 2 | 0 |
| china | | celtis timorensis | species | 2 | 0 |
| china | | gironniera subaequalis | species | 2 | 0 |
| china | | hemiptelea davidii | species | 1 | 0 |
| china | | pteroceltis tatarinowii | species | 1 | 0 |
| china | | trema cannabina var. dielsiana | varietas | 1 | 0 |
| china | | trema levigata | species | 8 | 0 |
| china | | trema virgata | species | 2 | 0 |
| china | | ulmus castaneifolia | species | 1 | 0 |
| china | | ulmus chenmoui | species | 13 | 0 |
| china | | ulmus davidiana | species | 6 | 0 |
| china | | ulmus gaussenii | species | 12 | 0 |
| china | | ulmus laevis | species | 2 | 0 |
| china | | ulmus lamellosa | species | 24 | 0 |
| china | | ulmus macrocarpa | species | 1 | 0 |
| china | | ulmus parvifolia | species | 5 | 0 |
| china | | ulmus pumila | species | 10 | 0 |
| china | | zelkova schneideriana | species | 5 | 0 |
| china | | zelkova serrata | species | 2 | 0 |
| china | beijing | celtis biondii var. heterophylla | varietas | 3 | 0 |
| china | beijing | celtis bungeana | species | 6 | 0 |
| china | beijing | celtis koraiensis | species | 3 | 0 |
| china | beijing | hemiptelea davidii | species | 3 | 0 |
| china | beijing | ulmus castaneifolia | species | 3 | 0 |
| china | beijing | ulmus laciniata | species | 2 | 0 |
| china | beijing | ulmus laevis | species | 3 | 0 |
| china | beijing | ulmus lamellosa | species | 3 | 0 |
| china | beijing | ulmus macrocarpa | species | 3 | 0 |
| china | beijing | ulmus parvifolia | species | 7 | 0 |
| china | beijing | ulmus pumila | species | 6 | 1 |
| china | beijing | zelkova schneideriana | species | 2 | 0 |
| china | beijing | zelkova serrata | species | 3 | 0 |
| china | beijing | zelkova sinica | species | 2 | 0 |
| china | guangdong | celtis sinensis | species | 8 | 0 |
| china | guangdong | gironniera subaequalis | species | 8 | 0 |
| china | guangdong | trema angustifolia | species | 8 | 0 |
| china | guangdong | trema cannabina | species | 16 | 0 |
| china | guangdong | trema tomentosa | species | 4 | 0 |
| china | hainan | trema tomentosa | species | 2 | 0 |
| china | hubei | zelkova serrata | species | 1 | 0 |
| china | inner mongolia | ulmus pumila | species | 0 | 1 |
| china | liaoning | ulmus pumila | species | 0 | 1 |
| china | sichuan | zelkova serrata | species | 4 | 0 |
| china | zhejiang | celtis biondii | species | 2 | 0 |
| colombia | | trema micrantha | species | 2 | 0 |
| costa rica | | celtis iguanaea | species | 1 | 0 |
| costa rica | | trema domingense | species | 10 | 0 |
| costa rica | | trema integerrima | species | 2 | 0 |
| costa rica | | trema micrantha | species | 5 | 0 |
| cuba | | trema lamarckiana | species | 5 | 0 |
| cyprus | | celtis tournefortii | species | 2 | 0 |
| dominica | | trema lamarckiana | species | 2 | 0 |
| dominica | | trema micrantha | species | 4 | 0 |
| dominican republic | | trema domingense | species | 4 | 0 |
| dominican republic | | trema lamarckiana | species | 5 | 0 |
| dominican republic | | trema micrantha | species | 12 | 0 |
| ecuador | | celtis schippii | species | 7 | 0 |
| ecuador | | trema domingense | species | 9 | 0 |
| ecuador | | trema integerrima | species | 4 | 0 |
| ecuador | | trema micrantha | species | 26 | 0 |
| ecuador | esmeraldas province | celtis schippii | species | 4 | 0 |
| ecuador | esmeraldas province | trema micrantha | species | 6 | 0 |
| ecuador | francisco de orellana province | celtis schippii | species | 5 | 0 |
| ecuador | francisco de orellana province | trema micrantha | species | 4 | 0 |
| egypt | cairo governorate | celtis occidentalis | species | 4 | 0 |
| el salvador | | trema micrantha | species | 5 | 0 |
| fiji | | parasponia andersonii | species | 4 | 0 |
| finland | | ulmus glabra | species | 1 | 0 |
| france | | celtis australis | species | 5 | 0 |
| france | | ulmus glabra | species | 1 | 0 |
| france | | ulmus laevis | species | 3 | 0 |
| france | | ulmus minor | species | 11 | 0 |
| france | corse region | celtis australis | species | 1 | 0 |
| france | ile-de-france region | zelkova cf. serrata gg-2004 | species | 247 | 0 |
| french guiana | | trema micrantha | species | 3 | 0 |
| french guiana | guyane | trema micrantha | species | 2 | 0 |
| georgia | | zelkova carpinifolia | species | 4 | 0 |
| greece | | celtis tournefortii | species | 2 | 0 |
| greece | | ulmus minor | species | 3 | 0 |
| greece | | zelkova abelicea | species | 2 | 0 |
| greece | crete region | celtis tournefortii | species | 6 | 0 |
| greece | crete region | ulmus minor subsp. canescens | subspecies | 2 | 0 |
| greece | crete region | zelkova abelicea | species | 17 | 0 |
| greece | thessaly region | celtis tournefortii var. aspera | varietas | 33 | 0 |
| guatemala | | trema domingense | species | 4 | 0 |
| guyana | | trema micrantha | species | 5 | 0 |
| haiti | | trema lamarckiana | species | 4 | 0 |
| haiti | | trema micrantha | species | 4 | 0 |
| honduras | | trema micrantha | species | 4 | 0 |
| india | | holoptelea integrifolia | species | 2 | 0 |
| india | | trema orientalis | species | 8 | 0 |
| india | | trema politoria | species | 5 | 0 |
| india | | trema tomentosa | species | 3 | 0 |
| india | national capital territory of delhi | holoptelea integrifolia | species | 0 | 1 |
| india | uttar pradesh | holoptelea integrifolia | species | 0 | 1 |
| indonesia | | parasponia rigida | species | 1 | 0 |
| indonesia | | parasponia simulans | species | 5 | 0 |
| indonesia | | trema orientalis | species | 2 | 0 |
| iran | | zelkova carpinifolia | species | 19 | 0 |
| iran | golestan province | zelkova carpinifolia | species | 5 | 0 |
| iran | isfahan province | celtis australis | species | 4 | 0 |
| italy | | ulmus glabra | species | 3 | 0 |
| italy | | ulmus minor | species | 6 | 0 |
| italy | | zelkova sicula | species | 2 | 0 |
| italy | sicily autonomous region | celtis tournefortii var. aetnensis | varietas | 12 | 0 |
| italy | sicily autonomous region | zelkova sicula | species | 12 | 0 |
| italy | umbria region | ulmus minor | species | 3 | 0 |
| jamaica | | trema micrantha | species | 4 | 0 |
| japan | aichi prefecture | aphananthe aspera | species | 2 | 0 |
| japan | aichi prefecture | celtis sinensis | species | 2 | 0 |
| japan | ehime prefecture | zelkova serrata | species | 1 | 0 |
| japan | fukushima prefecture | ulmus davidiana var. japonica | varietas | 1 | 0 |
| japan | fukushima prefecture | zelkova serrata | species | 15 | 0 |
| japan | gifu prefecture | celtis sinensis | species | 1 | 0 |
| japan | gifu prefecture | ulmus davidiana var. japonica | varietas | 2 | 0 |
| japan | gifu prefecture | ulmus parvifolia | species | 1 | 0 |
| japan | gifu prefecture | zelkova serrata | species | 2 | 0 |
| japan | gunma prefecture | zelkova serrata | species | 1 | 0 |
| japan | hokkaido prefecture | ulmus davidiana var. japonica | varietas | 2 | 0 |
| japan | ibaraki prefecture | celtis sinensis | species | 2 | 0 |
| japan | ibaraki prefecture | zelkova serrata | species | 2 | 0 |
| japan | iwate prefecture | ulmus davidiana var. japonica | varietas | 2 | 0 |
| japan | iwate prefecture | zelkova serrata | species | 2 | 0 |
| japan | kagoshima prefecture | aphananthe aspera | species | 2 | 0 |
| japan | kagoshima prefecture | celtis sinensis | species | 2 | 0 |
| japan | kagoshima prefecture | trema orientalis | species | 4 | 0 |
| japan | kochi prefecture | aphananthe aspera | species | 2 | 0 |
| japan | kochi prefecture | celtis sinensis | species | 1 | 0 |
| japan | kumamoto prefecture | aphananthe aspera | species | 2 | 0 |
| japan | kumamoto prefecture | celtis sinensis | species | 4 | 0 |
| japan | kumamoto prefecture | ulmus davidiana var. japonica | varietas | 1 | 0 |
| japan | kumamoto prefecture | zelkova serrata | species | 4 | 0 |
| japan | mie prefecture | aphananthe aspera | species | 2 | 0 |
| japan | miyazaki prefecture | aphananthe aspera | species | 6 | 0 |
| japan | miyazaki prefecture | celtis sinensis | species | 4 | 0 |
| japan | miyazaki prefecture | ulmus davidiana var. japonica | varietas | 4 | 0 |
| japan | miyazaki prefecture | zelkova serrata | species | 3 | 0 |
| japan | nagasaki prefecture | aphananthe aspera | species | 6 | 0 |
| japan | nagasaki prefecture | celtis sinensis | species | 2 | 0 |
| japan | nagasaki prefecture | ulmus parvifolia | species | 2 | 0 |
| japan | niigata prefecture | celtis sinensis | species | 2 | 0 |
| japan | niigata prefecture | zelkova serrata | species | 1 | 0 |
| japan | okayama prefecture | ulmus davidiana var. japonica | varietas | 1 | 0 |
| japan | okinawa prefecture | trema orientalis | species | 4 | 0 |
| japan | saga prefecture | aphananthe aspera | species | 2 | 0 |
| japan | saga prefecture | celtis sinensis | species | 2 | 0 |
| japan | shimane prefecture | ulmus davidiana var. japonica | varietas | 1 | 0 |
| japan | shimane prefecture | zelkova serrata | species | 2 | 0 |
| japan | tokyo prefecture | aphananthe aspera | species | 2 | 0 |
| japan | tokyo prefecture | celtis boninensis | species | 5 | 0 |
| japan | tokyo prefecture | celtis sinensis | species | 2 | 0 |
| japan | tokyo prefecture | trema orientalis | species | 8 | 0 |
| japan | toyama prefecture | zelkova serrata | species | 2 | 0 |
| japan | wakayama prefecture | zelkova serrata | species | 1 | 0 |
| japan | yamagata prefecture | ulmus davidiana var. japonica | varietas | 1 | 0 |
| japan | yamagata prefecture | zelkova serrata | species | 1 | 0 |
| japan | yamanashi prefecture | zelkova serrata | species | 2 | 0 |
| macedonia | | celtis tournefortii | species | 4 | 0 |
| malaysia | perak | trema orientalis | species | 1 | 0 |
| mexico | | trema micrantha | species | 1 | 0 |
| mongolia | dornogovi province | ulmus sp. ts-2017 | species | 1 | 0 |
| mozambique | sofala province | celtis philippensis | species | 2 | 0 |
| nepal | | trema politoria | species | 1 | 0 |
| netherlands | | parasponia andersonii | species | 7 | 0 |
| netherlands | | parasponia rigida | species | 32 | 0 |
| netherlands | | parasponia rugosa | species | 33 | 0 |
| netherlands | | trema levigata | species | 25 | 0 |
| netherlands | | trema orientalis | species | 32 | 0 |
| netherlands | gelderland province | parasponia andersonii | species | 887 | 0 |
| netherlands | gelderland province | trema orientalis | species | 668 | 0 |
| new caledonia | | trema aspera | species | 5 | 0 |
| nicaragua | | ampelocera macrocarpa | species | 1 | 0 |
| nicaragua | | celtis iguanaea | species | 1 | 0 |
| nicaragua | | trema micrantha | species | 1 | 0 |
| panama | | celtis schippii | species | 7 | 0 |
| panama | | lozanella enantiophylla | species | 1 | 0 |
| panama | | trema domingense | species | 4 | 0 |
| panama | | trema micrantha | species | 45 | 0 |
| panama | panama province | celtis iguanaea | species | 9 | 0 |
| papua new guinea | | celtis latifolia | species | 5 | 0 |
| papua new guinea | | celtis philippensis | species | 4 | 0 |
| papua new guinea | | parasponia rigida | species | 4 | 0 |
| papua new guinea | | trema aspera | species | 5 | 0 |
| papua new guinea | | trema orientalis | species | 4 | 0 |
| peru | | trema micrantha | species | 2 | 0 |
| portugal | | ulmus procera | species | 2 | 0 |
| puerto rico | | celtis trinervia | species | 2 | 0 |
| puerto rico | | trema lamarckiana | species | 3 | 0 |
| puerto rico | | trema micrantha | species | 11 | 0 |
| russia | | ulmus minor | species | 2 | 0 |
| saudi arabia | asir region | celtis africana | species | 25 | 0 |
| south africa | kwazulu-natal province | celtis gomphophylla | species | 2 | 0 |
| south africa | kwazulu-natal province | celtis mildbraedii | species | 2 | 0 |
| south africa | kwazulu-natal province | chaetachme aristata | species | 2 | 0 |
| south africa | kwazulu-natal province | trema orientalis | species | 2 | 0 |
| south africa | limpopo province | trema orientalis | species | 1 | 0 |
| south africa | mpumalanga province | celtis africana | species | 2 | 0 |
| south africa | mpumalanga province | chaetachme aristata | species | 2 | 0 |
| spain | | ulmus minor | species | 1 | 0 |
| spain | | ulmus procera | species | 4 | 0 |
| spain | valencia | celtis australis | species | 19 | 0 |
| suriname | | trema domingense | species | 5 | 0 |
| suriname | | trema micrantha | species | 5 | 0 |
| switzerland | geneva region | ulmus minor | species | 2 | 0 |
| taiwan | | trema orientalis | species | 1 | 0 |
| thailand | | trema orientalis | species | 5 | 0 |
| togo | | trema africana | species | 3 | 0 |
| togo | | trema nitens | species | 5 | 0 |
| togo | | trema orientalis | species | 15 | 0 |
| turkey | bitlis province | celtis tournefortii | species | 2 | 0 |
| turkey | isparta province | celtis tournefortii | species | 2 | 0 |
| turkey | kayseri province | celtis tournefortii | species | 2 | 0 |
| turkey | malatya province | celtis tournefortii | species | 2 | 0 |
| u.s. virgin islands | | trema micrantha | species | 4 | 0 |
| uganda | | celtis africana | species | 2 | 0 |
| uganda | | celtis durandii | species | 2 | 0 |
| uganda | | trema orientalis | species | 1 | 0 |
| united kingdom | | ulmus glabra | species | 5 | 0 |
| united kingdom | | ulmus minor | species | 3 | 0 |
| united kingdom | | ulmus procera | species | 5 | 0 |
| united kingdom | england | ulmus glabra | species | 1 | 0 |
| united kingdom | england | ulmus minor | species | 8 | 0 |
| united states | | trema lamarckiana | species | 2 | 0 |
| united states | | trema micrantha | species | 6 | 0 |
| united states | | ulmus alata | species | 1 | 0 |
| united states | | ulmus americana | species | 1 | 0 |
| united states | california | celtis reticulata | species | 3 | 0 |
| united states | florida | trema lamarckiana | species | 3 | 0 |
| united states | florida | trema micrantha | species | 4 | 0 |
| united states | florida | ulmus parvifolia | species | 1 | 0 |
| united states | maryland | celtis occidentalis | species | 2 | 0 |
| united states | maryland | ulmus americana | species | 3 | 0 |
| united states | north dakota | celtis occidentalis | species | 1 | 0 |
| united states | texas | celtis reticulata | species | 1 | 0 |
| united states | virginia | celtis laevigata | species | 3 | 0 |
| united states | washington | ulmus americana | species | 3 | 0 |
| united states | washington | ulmus chenmoui | species | 3 | 0 |
| united states | wisconsin | ulmus americana | species | 3 | 0 |