Browse by date
| Title/Description | Location |
Date |
|---|---|---|
| Open area, pure Poa, Pine in back | United States, Arizona | 1921-06-04 |
| Poa, Bouteloua gracilis, yellow pine, Aspen, Douglas fir, near divide | United States, Arizona | 1921-06-04 |
| Detail of grassland, pure Bouteloua gracilis | United States, Arizona | 1921-06-04 |
| Yellow pine, Poa arizonica | United States, Arizona | 1921-06-04 |
| Panorama, oak, cedar, grama grass, yellow pine on mountain in back in the Lincoln National Forest | United States, Arizona, Lincoln National Forest | 1921-06-07 |