All Species in Populus
- Balm-Of-Gilead (Populus × ontariensis)
- Balsam Poplar (Populus balsamifera)
- Bigtooth Aspen (Populus grandidentata)
- Carolina Poplar (Populus × canadensis)
- Cottonwood (Populus × heimburgeri)
- Cottonwood (Populus ×inopina)
- Cottonwood (Populus rouleauiana)
- Eastern Cottonwood (Populus deltoides)
- Fremont Cottonwood (Populus fremontii)
- Hybrid Balsam Poplar (Populus × brayshawii)
- Hybrid Cottonwood (Populus × smithii)
- Lanceleaf Cottonwood (Populus ×acuminata)
- Narrowleaf Cottonwood (Populus angustifolia)
- Parry Cottonwood (Populus × parryi)
- Populus hinckleyana (Populus × hinckleyana)
- Quaking Aspen (Populus tremuloides)
- Swamp Cottonwood (Populus heterophylla)