| belgium | | leymus condensatus | species | 19 | 0 |
| canada | alberta | leymus innovatus | species | 9 | 0 |
| canada | british columbia | leymus angustus | species | 2 | 0 |
| canada | british columbia | leymus arenarius | species | 1 | 0 |
| canada | british columbia | leymus cinereus | species | 6 | 0 |
| canada | british columbia | leymus innovatus | species | 3 | 0 |
| canada | british columbia | leymus mollis | species | 16 | 0 |
| canada | british columbia | leymus triticoides | species | 2 | 0 |
| canada | northwest territories | leymus mollis subsp. villosissimus | subspecies | 8 | 0 |
| canada | nunavut | leymus mollis subsp. villosissimus | subspecies | 8 | 0 |
| canada | yukon | leymus mollis subsp. villosissimus | subspecies | 1 | 0 |
| china | | leymus angustus | species | 1 | 0 |
| china | | leymus chinensis | species | 7 | 0 |
| china | | leymus mollis | species | 4 | 0 |
| china | | leymus mollis subsp. villosissimus | subspecies | 1 | 0 |
| china | | leymus racemosus | species | 1 | 0 |
| china | inner mongolia | leymus chinensis | species | 0 | 8 |
| china | jilin | leymus chinensis | species | 2 | 0 |
| china | sichuan | leymus condensatus | species | 1 | 0 |
| china | sichuan | leymus paboanus | species | 1 | 0 |
| china | sichuan | leymus secalinus | species | 1 | 0 |
| india | | leymus secalinus | species | 1 | 0 |
| japan | tottori prefecture | leymus mollis | species | 1 | 0 |
| kazakhstan | | leymus multicaulis | species | 14 | 0 |
| mongolia | dornogovi province | leymus chinensis | species | 1 | 0 |
| norway | | leymus arenarius | species | 1 | 0 |
| poland | | leymus arenarius | species | 3 | 0 |
| russia | | leymus arenarius | species | 18 | 0 |
| russia | | leymus paboanus | species | 17 | 0 |
| russia | | leymus racemosus | species | 13 | 0 |
| south korea | | leymus mollis | species | 3 | 0 |
| united states | | leymus mollis | species | 2 | 0 |
| united states | alaska | leymus mollis | species | 21 | 0 |
| united states | montana | leymus cinereus | species | 16 | 0 |
| united states | nevada | leymus triticoides | species | 21 | 0 |
| united states | oregon | leymus flavescens | species | 2 | 0 |
| united states | washington | leymus flavescens | species | 6 | 0 |