| australia | | dioscorea alata | species | 1 | 0 |
| australia | | tacca leontopetaloides | species | 1 | 0 |
| australia | queensland | dioscorea transversa | species | 4 | 0 |
| belgium | | dioscorea communis | species | 1 | 0 |
| benin | | dioscorea abyssinica | species | 6 | 0 |
| benin | | dioscorea bulbifera | species | 2 | 0 |
| benin | | dioscorea praehensilis | species | 5 | 0 |
| bolivia | | dioscorea larecajensis | species | 3 | 0 |
| brazil | | dioscorea amaranthoides | species | 4 | 0 |
| brazil | | dioscorea convolvulacea | species | 1 | 0 |
| brazil | | dioscorea maianthemoides | species | 4 | 0 |
| brazil | | dioscorea monadelpha | species | 4 | 0 |
| brazil | | dioscorea ovata | species | 2 | 0 |
| brazil | | dioscorea piperifolia | species | 4 | 0 |
| brazil | | dioscorea polygonoides | species | 1 | 0 |
| brazil | | dioscorea subhastata | species | 4 | 0 |
| brazil | | rajania cordata | species | 1 | 0 |
| brazil | | tacca artocarpifolia | species | 1 | 0 |
| brazil | | tacca chantrieri | species | 1 | 0 |
| brazil | | tacca integrifolia | species | 1 | 0 |
| brazil | amazonas | dioscorea trifida | species | 0 | 1 |
| brazil | mato grosso | dioscorea trifida | species | 0 | 1 |
| brazil | minas gerais | dioscorea bulbifera | species | 0 | 1 |
| brazil | santa catarina | dioscorea trifida | species | 0 | 1 |
| burundi | | dioscorea bulbifera | species | 2 | 0 |
| cambodia | | tacca chantrieri | species | 1 | 0 |
| cambodia | kampong thom province | dioscorea oryzetorum | species | 2 | 0 |
| canada | ontario | dioscorea villosa | species | 5 | 0 |
| chile | | dioscorea brachybotrya | species | 2 | 0 |
| china | | dioscorea bulbifera | species | 5 | 0 |
| china | | dioscorea cirrhosa | species | 1 | 0 |
| china | | dioscorea esculenta | species | 4 | 0 |
| china | | dioscorea fordii | species | 1 | 0 |
| china | | dioscorea japonica | species | 1 | 0 |
| china | | dioscorea oppositifolia | species | 1 | 0 |
| china | | dioscorea polystachya | species | 153 | 0 |
| china | | dioscorea zingiberensis | species | 9 | 0 |
| china | | tacca chantrieri | species | 11 | 0 |
| china | | tacca subflabellata | species | 3 | 0 |
| china | beijing | dioscorea polystachya | species | 1 | 0 |
| china | fujian | dioscorea polystachya | species | 1 | 0 |
| china | guizhou | dioscorea panthaica | species | 2 | 0 |
| china | hebei | dioscorea nipponica | species | 3 | 0 |
| china | heilongjiang | dioscorea nipponica | species | 1 | 0 |
| china | henan | dioscorea polystachya | species | 9 | 1 |
| china | hunan | dioscorea zingiberensis | species | 2 | 0 |
| china | jiangsu | dioscorea polystachya | species | 1 | 0 |
| china | jiangxi | dioscorea alata | species | 284 | 0 |
| china | shandong | dioscorea polystachya | species | 1 | 0 |
| china | sichuan | dioscorea panthaica | species | 3 | 0 |
| china | sichuan | dioscorea zingiberensis | species | 2 | 0 |
| china | yunnan | dioscorea cirrhosa | species | 2 | 0 |
| china | yunnan | dioscorea panthaica | species | 4 | 0 |
| china | yunnan | dioscorea polystachya | species | 0 | 1 |
| china | yunnan | dioscorea zingiberensis | species | 2 | 0 |
| ecuador | | dioscorea coriacea | species | 1 | 0 |
| france | | dioscorea cayennensis | species | 1 | 0 |
| france | | dioscorea rotundata | species | 52 | 0 |
| ghana | | dioscorea bulbifera | species | 6 | 0 |
| guadeloupe | | dioscorea rotundata | species | 5 | 0 |
| guam | | dioscorea esculenta | species | 4 | 0 |
| guyana | barima-waini region | tacca sp. us:redden6788 | species | 3 | 0 |
| india | | dioscorea alata | species | 6 | 0 |
| india | | dioscorea belophylla | species | 3 | 0 |
| india | | dioscorea bulbifera | species | 3 | 0 |
| india | | dioscorea esculenta | species | 3 | 0 |
| india | | dioscorea glabra | species | 3 | 0 |
| india | | dioscorea hispida | species | 3 | 0 |
| india | | dioscorea oppositifolia | species | 3 | 0 |
| india | | dioscorea pentaphylla | species | 3 | 0 |
| india | | dioscorea wallichii | species | 3 | 0 |
| india | | tacca chantrieri | species | 2 | 0 |
| india | | tacca leontopetaloides | species | 1 | 0 |
| india | | trichopus zeylanicus subsp. travancoricus | subspecies | 5 | 0 |
| india | assam | dioscorea composita | species | 2 | 0 |
| india | assam | dioscorea floribunda | species | 7 | 0 |
| india | assam | dioscorea pentaphylla var. communis | varietas | 2 | 0 |
| india | chhattisgarh | dioscorea bulbifera | species | 0 | 1 |
| india | haryana | dioscorea oppositifolia | species | 2 | 0 |
| india | haryana | dioscorea pentaphylla var. linnaei | varietas | 2 | 0 |
| india | haryana | dioscorea pentaphylla var. pentaphylla | varietas | 2 | 0 |
| india | himachal pradesh | dioscorea bulbifera var. vera | varietas | 2 | 0 |
| india | himachal pradesh | dioscorea wallichii | species | 2 | 0 |
| india | karnataka | dioscorea belophylla | species | 2 | 0 |
| india | karnataka | dioscorea melanophyma | species | 1 | 0 |
| india | karnataka | dioscorea oppositifolia | species | 2 | 0 |
| india | kerala | dioscorea alata | species | 2 | 0 |
| india | kerala | dioscorea bulbifera var. sativa | varietas | 2 | 0 |
| india | kerala | dioscorea bulbifera var. vera | varietas | 4 | 0 |
| india | kerala | dioscorea hamiltonii | species | 4 | 0 |
| india | kerala | dioscorea intermedia | species | 2 | 0 |
| india | kerala | dioscorea kalkapershadii | species | 1 | 0 |
| india | kerala | dioscorea oppositifolia | species | 2 | 0 |
| india | kerala | dioscorea puber | species | 4 | 0 |
| india | kerala | dioscorea spicata | species | 4 | 0 |
| india | kerala | dioscorea tomentosa | species | 8 | 0 |
| india | kerala | dioscorea wallichii | species | 4 | 0 |
| india | kerala | dioscorea wightii | species | 30 | 0 |
| india | rajasthan | dioscorea tomentosa | species | 2 | 0 |
| india | tamil nadu | dioscorea hamiltonii | species | 4 | 0 |
| india | uttarakhand | dioscorea bulbifera | species | 0 | 1 |
| indonesia | | dioscorea communis | species | 2 | 0 |
| indonesia | | tacca leontopetaloides | species | 2 | 0 |
| indonesia | | tacca palmatifida | species | 2 | 0 |
| indonesia | west nusa tenggara province | dioscorea sp. sh-2010 | species | 1 | 0 |
| japan | | dioscorea alata | species | 6 | 0 |
| japan | | dioscorea cirrhosa | species | 1 | 0 |
| japan | | dioscorea japonica | species | 6 | 0 |
| japan | | dioscorea polystachya | species | 2 | 0 |
| japan | aichi prefecture | dioscorea gracillima | species | 4 | 0 |
| japan | akita prefecture | dioscorea tokoro | species | 1 | 0 |
| japan | gifu prefecture | dioscorea gracillima | species | 6 | 0 |
| japan | gifu prefecture | dioscorea septemloba | species | 6 | 0 |
| japan | gunma prefecture | dioscorea gracillima | species | 6 | 0 |
| japan | gunma prefecture | dioscorea tokoro | species | 1 | 0 |
| japan | hyogo prefecture | dioscorea gracillima | species | 6 | 0 |
| japan | hyogo prefecture | dioscorea quinquelobata | species | 6 | 0 |
| japan | hyogo prefecture | dioscorea septemloba | species | 6 | 0 |
| japan | hyogo prefecture | dioscorea tokoro | species | 6 | 0 |
| japan | ishikawa prefecture | dioscorea japonica | species | 6 | 0 |
| japan | iwate prefecture | dioscorea rotundata | species | 46181 | 0 |
| japan | kagoshima prefecture | dioscorea bulbifera | species | 28 | 0 |
| japan | kagoshima prefecture | dioscorea japonica | species | 34 | 0 |
| japan | kanagawa prefecture | dioscorea septemloba | species | 12 | 0 |
| japan | kanagawa prefecture | dioscorea tenuipes | species | 6 | 0 |
| japan | kochi prefecture | dioscorea gracillima | species | 3 | 0 |
| japan | kochi prefecture | dioscorea japonica | species | 8 | 0 |
| japan | kochi prefecture | dioscorea polystachya | species | 2 | 0 |
| japan | kochi prefecture | dioscorea septemloba | species | 2 | 0 |
| japan | kochi prefecture | dioscorea tenuipes | species | 1 | 0 |
| japan | kochi prefecture | dioscorea tokoro | species | 7 | 0 |
| japan | kumamoto prefecture | dioscorea japonica | species | 18 | 0 |
| japan | kumamoto prefecture | dioscorea polystachya | species | 12 | 0 |
| japan | kumamoto prefecture | dioscorea quinquelobata | species | 6 | 0 |
| japan | kyoto prefecture | dioscorea gracillima | species | 6 | 0 |
| japan | miyagi ken prefecture | dioscorea tokoro | species | 1 | 0 |
| japan | nagano prefecture | dioscorea nipponica | species | 6 | 0 |
| japan | nagano prefecture | dioscorea tokoro | species | 2 | 0 |
| japan | nara prefecture | dioscorea gracillima | species | 6 | 0 |
| japan | nara prefecture | dioscorea quinquelobata | species | 6 | 0 |
| japan | okayama prefecture | dioscorea bulbifera | species | 6 | 0 |
| japan | okayama prefecture | dioscorea gracillima | species | 12 | 0 |
| japan | okayama prefecture | dioscorea japonica | species | 12 | 0 |
| japan | okayama prefecture | dioscorea nipponica | species | 12 | 0 |
| japan | okayama prefecture | dioscorea polystachya | species | 6 | 0 |
| japan | okayama prefecture | dioscorea quinquelobata | species | 6 | 0 |
| japan | okayama prefecture | dioscorea septemloba | species | 12 | 0 |
| japan | okayama prefecture | dioscorea tenuipes | species | 12 | 0 |
| japan | okayama prefecture | dioscorea tokoro | species | 6 | 0 |
| japan | okinawa prefecture | dioscorea bulbifera | species | 4 | 0 |
| japan | okinawa prefecture | dioscorea cirrhosa | species | 4 | 0 |
| japan | osaka prefecture | dioscorea polystachya | species | 18 | 0 |
| japan | osaka prefecture | dioscorea quinquelobata | species | 6 | 0 |
| japan | osaka prefecture | dioscorea tenuipes | species | 6 | 0 |
| japan | saga prefecture | dioscorea japonica | species | 6 | 0 |
| japan | shimane prefecture | dioscorea japonica | species | 6 | 0 |
| japan | shizuoka prefecture | dioscorea bulbifera | species | 4 | 0 |
| japan | shizuoka prefecture | dioscorea japonica | species | 12 | 0 |
| japan | shizuoka prefecture | dioscorea tenuipes | species | 1 | 0 |
| japan | shizuoka prefecture | dioscorea tokoro | species | 18 | 0 |
| japan | tochigi prefecture | dioscorea japonica | species | 12 | 0 |
| japan | tottori prefecture | dioscorea tokoro | species | 6 | 0 |
| japan | toyama prefecture | dioscorea polystachya | species | 0 | 1 |
| japan | wakayama prefecture | dioscorea tokoro | species | 1 | 0 |
| japan | yamagata prefecture | dioscorea tokoro | species | 1 | 0 |
| kenya | | dioscorea alata | species | 2 | 0 |
| kenya | | dioscorea bulbifera | species | 4 | 0 |
| kenya | | dioscorea cayennensis | species | 13 | 0 |
| kenya | | dioscorea kituiensis | species | 6 | 0 |
| kenya | | dioscorea minutiflora | species | 14 | 0 |
| kenya | | dioscorea sp. k102 | species | 1 | 0 |
| kenya | | dioscorea sp. k116 | species | 1 | 0 |
| kenya | | dioscorea sp. k121 | species | 1 | 0 |
| kenya | | dioscorea sp. k122 | species | 1 | 0 |
| kenya | | dioscorea sp. k123 | species | 1 | 0 |
| kenya | | dioscorea sp. k132 | species | 1 | 0 |
| kenya | | dioscorea sp. k133b | species | 1 | 0 |
| kenya | | dioscorea sp. k142 | species | 1 | 0 |
| kenya | | dioscorea sp. k143 | species | 1 | 0 |
| kenya | | dioscorea sp. k149 | species | 1 | 0 |
| kenya | | dioscorea sp. k15 | species | 1 | 0 |
| kenya | | dioscorea sp. k152 | species | 1 | 0 |
| kenya | | dioscorea sp. k153 | species | 1 | 0 |
| kenya | | dioscorea sp. k155 | species | 2 | 0 |
| kenya | | dioscorea sp. k18 | species | 1 | 0 |
| kenya | | dioscorea sp. k191 | species | 2 | 0 |
| kenya | | dioscorea sp. k23 | species | 1 | 0 |
| kenya | | dioscorea sp. k2761 | species | 1 | 0 |
| kenya | | dioscorea sp. k29 | species | 1 | 0 |
| kenya | | dioscorea sp. k41 | species | 1 | 0 |
| kenya | | dioscorea sp. k47 | species | 1 | 0 |
| kenya | | dioscorea sp. k65 | species | 1 | 0 |
| kenya | | dioscorea sp. k672 | species | 1 | 0 |
| kenya | | dioscorea sp. k682 | species | 1 | 0 |
| kenya | | dioscorea sp. k70 | species | 1 | 0 |
| kenya | | dioscorea sp. k74 | species | 1 | 0 |
| kenya | | dioscorea sp. k76 | species | 1 | 0 |
| kenya | | dioscorea sp. k79 | species | 1 | 0 |
| kenya | | dioscorea sp. k80 | species | 2 | 0 |
| kenya | | dioscorea sp. k84 | species | 1 | 0 |
| kenya | | dioscorea sp. k93 | species | 2 | 0 |
| kenya | | dioscorea sp. k96 | species | 1 | 0 |
| kenya | | dioscorea sp. ka2 | species | 1 | 0 |
| kenya | | dioscorea sp. kdio57 | species | 1 | 0 |
| kenya | | dioscorea sp. kdio58 | species | 1 | 0 |
| kenya | | dioscorea sp. kdio59 | species | 1 | 0 |
| kenya | | dioscorea sp. kdio63 | species | 1 | 0 |
| kenya | | dioscorea sp. kdio71 | species | 1 | 0 |
| kenya | | dioscorea sp. kdio75 | species | 2 | 0 |
| kenya | | dioscorea sp. kembua | species | 2 | 0 |
| kenya | | dioscorea sp. kmxk | species | 1 | 0 |
| kenya | | dioscorea sp. kw10 | species | 1 | 0 |
| kenya | | dioscorea sp. kw4 | species | 1 | 0 |
| kenya | | dioscorea sp. kw7 | species | 1 | 0 |
| laos | | tacca chantrieri | species | 1 | 0 |
| madagascar | | dioscorea bulbifera | species | 7 | 0 |
| madagascar | | tacca artocarpifolia | species | 3 | 0 |
| madagascar | | trichopus sempervirens | species | 2 | 0 |
| madagascar | boeny region | tacca leontopetaloides | species | 3 | 0 |
| malawi | southern region | dioscorea schimperiana | species | 7 | 0 |
| malaysia | | tacca integrifolia | species | 1 | 0 |
| malaysia | kelantan | dioscorea hispida | species | 0 | 1 |
| malaysia | terengganu | dioscorea hispida | species | 0 | 1 |
| mexico | | dioscorea galeottiana | species | 5 | 0 |
| morocco | | dioscorea communis | species | 1 | 0 |
| mozambique | niassa province | dioscorea bulbifera | species | 6 | 0 |
| mozambique | niassa province | dioscorea schimperiana | species | 6 | 0 |
| mozambique | sofala province | dioscorea dumetorum | species | 12 | 0 |
| mozambique | sofala province | dioscorea sansibarensis | species | 6 | 0 |
| mozambique | sofala province | dioscorea schimperiana | species | 6 | 0 |
| nicaragua | | dioscorea convolvulacea | species | 1 | 0 |
| nigeria | | dioscorea rotundata | species | 1 | 0 |
| pakistan | | dioscorea balcanica | species | 1 | 0 |
| pakistan | azad jammu and kashmir province | dioscorea bulbifera | species | 0 | 1 |
| panama | panama province | dioscorea urophylla | species | 3 | 0 |
| portugal | | dioscorea communis | species | 2 | 0 |
| puerto rico | | dioscorea cayennensis | species | 3 | 0 |
| puerto rico | | dioscorea polygonoides | species | 6 | 0 |
| south africa | | dioscorea burchellii | species | 12 | 0 |
| south africa | | dioscorea cotinifolia | species | 12 | 0 |
| south africa | | dioscorea dregeana | species | 12 | 0 |
| south africa | | dioscorea elephantipes | species | 19 | 0 |
| south africa | | dioscorea gillettii | species | 12 | 0 |
| south africa | | dioscorea hemicrypta | species | 24 | 0 |
| south africa | | dioscorea multiloba | species | 6 | 0 |
| south africa | | dioscorea mundtii | species | 12 | 0 |
| south africa | | dioscorea rupicola | species | 6 | 0 |
| south africa | | dioscorea stipulosa | species | 12 | 0 |
| south africa | gauteng province | dioscorea dregeana | species | 6 | 0 |
| south africa | gauteng province | dioscorea elephantipes | species | 2 | 0 |
| south africa | limpopo province | dioscorea sylvatica | species | 6 | 0 |
| south africa | mpumalanga province | dioscorea cotinifolia | species | 6 | 0 |
| south africa | mpumalanga province | dioscorea dregeana | species | 4 | 0 |
| south africa | mpumalanga province | dioscorea strydomiana | species | 12 | 0 |
| south africa | mpumalanga province | dioscorea sylvatica | species | 12 | 0 |
| spain | madrid | dioscorea chouardii | species | 0 | 1 |
| sri lanka | | trichopus zeylanicus | species | 4 | 0 |
| taiwan | | dioscorea alata | species | 0 | 1 |
| taiwan | | dioscorea collettii | species | 8 | 0 |
| taiwan | | dioscorea japonica | species | 0 | 5 |
| taiwan | | dioscorea polystachya | species | 4 | 0 |
| thailand | | dioscorea alata | species | 8 | 0 |
| thailand | | dioscorea arachidna | species | 2 | 0 |
| thailand | | dioscorea brevipetiolata | species | 2 | 0 |
| thailand | | dioscorea bulbifera | species | 22 | 0 |
| thailand | | dioscorea cirrhosa | species | 6 | 0 |
| thailand | | dioscorea collettii | species | 12 | 0 |
| thailand | | dioscorea decipiens | species | 2 | 0 |
| thailand | | dioscorea esculenta | species | 2 | 0 |
| thailand | | dioscorea glabra | species | 38 | 0 |
| thailand | | dioscorea hamiltonii | species | 2 | 0 |
| thailand | | dioscorea hispida | species | 2 | 0 |
| thailand | | dioscorea membranacea | species | 4 | 0 |
| thailand | | dioscorea pentaphylla | species | 2 | 0 |
| thailand | | dioscorea petelotii | species | 4 | 0 |
| thailand | | dioscorea pierrei | species | 2 | 0 |
| thailand | | dioscorea pseudonitens | species | 24 | 0 |
| thailand | | dioscorea tentaculigera | species | 14 | 0 |
| thailand | | dioscorea velutipes | species | 30 | 0 |
| thailand | | tacca leontopetaloides | species | 1 | 0 |
| thailand | | tacca palmata | species | 1 | 0 |
| tonga | | dioscorea pentaphylla | species | 6 | 0 |
| uganda | | dioscorea bulbifera | species | 2 | 0 |
| united states | | dioscorea alata | species | 3 | 0 |
| united states | | dioscorea bulbifera | species | 5 | 0 |
| united states | district of columbia | tacca chantrieri | species | 2 | 0 |
| united states | maryland | dioscorea villosa subsp. quaternata | subspecies | 2 | 0 |
| united states | missouri | tacca chantrieri | species | 2 | 0 |
| united states | virginia | dioscorea villosa | species | 8 | 0 |
| vanuatu | | dioscorea alata | species | 47 | 0 |
| vietnam | | dioscorea alata | species | 1 | 0 |
| vietnam | | tacca chantrieri | species | 1 | 0 |
| vietnam | ninh binh province | tacca chantrieri | species | 3 | 0 |
| vietnam | phu yen province | tacca chantrieri | species | 3 | 0 |