| bhutan | thimphu district | plagiochasma japonicum | species | 2 | 0 |
| bhutan | thimphu district | plagiochasma pterospermum | species | 1 | 0 |
| china | yunnan | plagiochasma cordatum | species | 1 | 0 |
| india | | plagiochasma appendiculatum | species | 2 | 0 |
| india | tamil nadu | plagiochasma japonicum | species | 1 | 0 |
| italy | campania region | plagiochasma rupestre | species | 13 | 0 |
| mexico | federal district | plagiochasma landii | species | 2 | 0 |
| mexico | queretaro arteaga | plagiochasma intermedium | species | 1 | 0 |
| mexico | veracruz-llave | plagiochasma crenulatum | species | 1 | 0 |
| mexico | veracruz-llave | plagiochasma wrightii | species | 14 | 0 |
| nepal | | plagiochasma appendiculatum | species | 11 | 0 |
| nepal | central development region | plagiochasma appendiculatum | species | 4 | 0 |
| portugal | madeira autonomous region | plagiochasma rupestre | species | 14 | 0 |
| spain | | plagiochasma rupestre | species | 2 | 0 |
| united states | texas | plagiochasma rupestre | species | 2 | 0 |