1989 | Alnus (aulnes d'Amérique) ? |
1992 | Alnus cordata |
1989 | Alnus glutinosa 'Imperialis' |
1991 | Alnus glutinosa 'Pyramidalis' |
1990 | Alnus incana 'Aurea' |
1990 | Alnus incana 'Laciniata' |
1991 | |
| Alnus nitida |
1991 | Alnus rubra |
1996 | Alnus rubra 'Pinnatissecta' |
1991 | Alnus serrulata |
1991 | Alnus viridis subsp crispa |
1996 | Alnus x spaethii |