| canada | british columbia | cornus canadensis | species | 3 | 0 |
| canada | british columbia | cornus nuttallii | species | 2 | 0 |
| canada | british columbia | cornus occidentalis | species | 3 | 0 |
| canada | british columbia | cornus sericea | species | 5 | 0 |
| canada | british columbia | cornus unalaschkensis | species | 5 | 0 |
| canada | manitoba | cornus sericea | species | 2 | 0 |
| canada | newfoundland and labrador | cornus canadensis | species | 2 | 0 |
| canada | ontario | cornus alternifolia | species | 7 | 0 |
| canada | ontario | cornus canadensis | species | 9 | 0 |
| canada | ontario | cornus drummondii | species | 5 | 0 |
| canada | ontario | cornus obliqua | species | 2 | 0 |
| canada | ontario | cornus racemosa | species | 5 | 0 |
| canada | ontario | cornus rugosa | species | 4 | 0 |
| canada | ontario | cornus sericea | species | 5 | 0 |
| canada | quebec | cornus alternifolia | species | 2 | 0 |
| canada | quebec | cornus racemosa | species | 1 | 0 |
| canada | quebec | cornus rugosa | species | 2 | 0 |
| canada | quebec | cornus sericea | species | 5 | 0 |
| canada | yukon | cornus canadensis | species | 4 | 0 |
| canada | yukon | cornus sericea | species | 1 | 0 |
| canada | yukon | cornus unalaschkensis | species | 2 | 0 |
| china | | cornus alba | species | 4 | 0 |
| china | | cornus elliptica | species | 2 | 0 |
| china | | cornus kousa subsp. chinensis | subspecies | 11 | 0 |
| china | | cornus macrophylla | species | 1 | 0 |
| china | | cornus officinalis | species | 1 | 0 |
| china | | cornus walteri | species | 1 | 0 |
| china | | cornus wilsoniana | species | 157 | 0 |
| china | anhui | cornus officinalis | species | 7 | 0 |
| china | beijing | cornus alba | species | 3 | 0 |
| china | beijing | cornus kousa subsp. chinensis | subspecies | 9 | 0 |
| china | beijing | cornus officinalis | species | 3 | 0 |
| china | beijing | cornus walteri | species | 9 | 0 |
| china | chongqing | cornus officinalis | species | 1 | 0 |
| china | gansu | cornus officinalis | species | 2 | 0 |
| china | guizhou | cornus officinalis | species | 3 | 0 |
| china | hebei | cornus officinalis | species | 2 | 0 |
| china | henan | cornus officinalis | species | 32 | 0 |
| china | hubei | cornus officinalis | species | 18 | 0 |
| china | hunan | cornus officinalis | species | 1 | 0 |
| china | shaanxi | cornus officinalis | species | 41 | 0 |
| china | shandong | cornus officinalis | species | 1 | 0 |
| china | shanxi | cornus officinalis | species | 4 | 0 |
| china | sichuan | cornus officinalis | species | 6 | 0 |
| china | tibet | cornus officinalis | species | 2 | 0 |
| china | zhejiang | cornus officinalis | species | 20 | 0 |
| costa rica | | cornus peruviana | species | 4 | 0 |
| denmark | | cornus sanguinea | species | 1 | 0 |
| france | | cornus sanguinea | species | 2 | 0 |
| italy | south tyrol autonomous region | cornus mas | species | 1 | 0 |
| japan | | cornus kousa | species | 1 | 0 |
| japan | | cornus macrophylla | species | 1 | 0 |
| japan | aomori prefecture | cornus kousa | species | 3 | 0 |
| japan | ehime prefecture | cornus macrophylla | species | 1 | 0 |
| japan | gifu prefecture | cornus macrophylla | species | 2 | 0 |
| japan | gunma prefecture | cornus macrophylla | species | 1 | 0 |
| japan | hiroshima prefecture | cornus macrophylla | species | 2 | 0 |
| japan | hokkaido prefecture | cornus suecica | species | 3 | 0 |
| japan | kagoshima prefecture | cornus macrophylla | species | 6 | 0 |
| japan | kochi prefecture | cornus macrophylla | species | 2 | 0 |
| japan | kumamoto prefecture | cornus macrophylla | species | 4 | 0 |
| japan | mie prefecture | cornus macrophylla | species | 2 | 0 |
| japan | miyagi ken prefecture | cornus florida | species | 3 | 0 |
| japan | miyazaki prefecture | cornus macrophylla | species | 4 | 0 |
| japan | nagano prefecture | cornus macrophylla | species | 2 | 0 |
| japan | nagasaki prefecture | cornus macrophylla | species | 4 | 0 |
| japan | niigata prefecture | cornus macrophylla | species | 3 | 0 |
| japan | okayama prefecture | cornus macrophylla | species | 2 | 0 |
| japan | okinawa prefecture | cornus kousa subsp. chinensis | subspecies | 2 | 0 |
| japan | saga prefecture | cornus macrophylla | species | 2 | 0 |
| japan | shiga prefecture | cornus macrophylla | species | 2 | 0 |
| japan | shimane prefecture | cornus macrophylla | species | 2 | 0 |
| japan | shizuoka prefecture | cornus macrophylla | species | 1 | 0 |
| japan | tottori prefecture | cornus kousa | species | 1 | 0 |
| japan | toyama prefecture | cornus macrophylla | species | 2 | 0 |
| japan | wakayama prefecture | cornus macrophylla | species | 3 | 0 |
| lebanon | | cornus sanguinea | species | 2 | 0 |
| mozambique | manica province | cornus volkensii | species | 2 | 0 |
| norway | | cornus suecica | species | 2 | 0 |
| sweden | | cornus suecica | species | 56 | 0 |
| switzerland | geneva region | cornus sanguinea | species | 2 | 0 |
| taiwan | | cornus kousa | species | 12 | 0 |
| united kingdom | | cornus canadensis | species | 7 | 0 |
| united kingdom | | cornus florida | species | 1 | 0 |
| united kingdom | | cornus officinalis | species | 6 | 0 |
| united kingdom | | cornus sanguinea | species | 2 | 0 |
| united kingdom | | cornus sericea | species | 5 | 0 |
| united kingdom | | cornus suecica | species | 7 | 0 |
| united states | | cornus alba | species | 2 | 0 |
| united states | | cornus canadensis | species | 2 | 0 |
| united states | | cornus florida | species | 10 | 0 |
| united states | | cornus macrophylla | species | 2 | 0 |
| united states | | cornus mas | species | 3 | 0 |
| united states | | cornus officinalis | species | 2 | 0 |
| united states | | cornus sanguinea | species | 2 | 0 |
| united states | | cornus sericea | species | 1 | 0 |
| united states | alaska | cornus suecica | species | 4 | 0 |
| united states | alaska | cornus unalaschkensis | species | 2 | 0 |
| united states | district of columbia | cornus sanguinea | species | 4 | 0 |
| united states | district of columbia | cornus sericea | species | 3 | 0 |
| united states | florida | cornus florida | species | 2 | 0 |
| united states | maryland | cornus florida | species | 3 | 0 |
| united states | maryland | cornus florida f. rubra | forma | 3 | 0 |
| united states | new york | cornus mas | species | 1 | 0 |
| united states | virginia | cornus alternifolia | species | 9 | 0 |
| united states | wisconsin | cornus alternifolia | species | 7 | 0 |
| united states | wisconsin | cornus canadensis | species | 7 | 0 |