Oak chestnut and grassland |
United States, District of Columbia |
1917-05-30 |
Oak chestnut and grassland |
United States, District of Columbia |
1917-05-30 |
Oak, Juniper brush, short grass |
United States, New Mexico |
1917-11-25 |
Opuntia arborescens, Bouteloua grass |
United States, New Mexico, Estancia Valley |
1917-12-08 |
Opuntia arborescens, Muhlenbergia gracilis |
United States, New Mexico |
1917-12-08 |
Opuntia, some grass |
United States, Colorado, Rule Creek |
1917-11-21 |
Opuntia, some grass |
United States, Colorado, Rule Creek |
1917-11-21 |
Panorama |
United States, New Mexico, Raton Pass |
1917-11-24 |
Panorama |
United States, New Mexico, Raton Pass |
1917-11-24 |
Panorama |
United States, New Mexico, Raton Pass |
1917-11-24 |
Panorama |
United States, New Mexico, Raton Pass |
1917-11-24 |
Panorama of veg. on hills, valleys |
United States, Idaho |
1917-09-06 |
Panorama of veg. on hills, valleys |
United States, Idaho |
1917-09-06 |
Panorama of veg. on hills, valleys |
United States, Idaho |
1917-09-06 |
Panorama of veg. on hills, valleys |
United States, Idaho |
1917-09-06 |
Panorama of veg. on hills, valleys |
United States, Idaho |
1917-09-06 |
Panorama, prairie, mts., vegetation named |
United States, New Mexico |
1917-11-28 |
Panorama, prairie, mts., vegetation named |
United States, New Mexico |
1917-11-28 |
Panorama, prairie, mts., vegetation named |
United States, New Mexico |
1917-11-28 |
Panorama, prairie, mts., vegetation named |
United States, New Mexico |
1917-11-28 |
Panorama, salt grass, Sporobolus airoides, Juniper-Pinion in back, timberline up on Sango de Christo range - prairie and mountains |
United States, Colorado |
1917-12-12 |
Payette River Valley |
United States, Idaho |
1917-09-01 |
Pine following Andropogon |
United States, District of Columbia, Rock Creek |
1917-03-24 |
Pine succession on Andropogon grass |
United States, Maryland |
1917-05-30 |
Pine succession on Andropogon grass |
United States, Maryland |
1917-05-30 |
Pinion, Juniper |
United States, New Mexico |
1917-12-10 |
Pinion-Juniper |
United States, New Mexico |
1917-12-10 |
Pinion-Juniper |
United States, New Mexico |
1917-12-10 |
Pinion-Juniper |
United States, New Mexico |
1917-12-10 |
Plantago purshii, Agropyron spicatum |
United States, Idaho |
1917-09-01 |
Pure Muhlenbergia, sage, Bouteloua oligostachya |
United States, New Mexico, Rio Grande |
1917-12-11 |
Rabbit brush, Salt grass |
United States, Colorado |
1917-12-12 |
Rabbit brush, weed grass |
United States, Idaho |
1917-09-01 |
Ranch and plains, veg. |
United States, New Mexico |
1917-12-02 |
Ridge between Estancia and Rio Grande Valleys, Opuntia arborescens |
United States, New Mexico, Estancia Valley |
1917-12-08 |
Rough land, small leaf oak |
United States, New Mexico |
1917-11-25 |
Sage, yellow pine, Douglas fir |
United States, Idaho |
1917-08-31 |
Salt grass, Sarcobatus |
United States, Colorado |
1917-12-12 |
Sand sage, like veg. |
United States, Colorado |
1917-11-22 |
Sand sage, like veg. |
United States, Colorado |
1917-11-22 |
Sand sage, like veg. |
United States, Colorado |
1917-11-22 |
Sandy land, Andropogon, Yucca |
United States, New Mexico |
1917-11-26 |
Sarcobatus |
United States, Colorado |
1917-12-12 |
Sarcobatus, Chrysothamnus, Bouteloua grass, Muhlenbergia |
United States, Colorado |
1917-12-12 |
Sarcobatus, Distichlis |
United States, Colorado, San Louis Valley |
1917-12-12 |
Scleropogon, Hilaria mutica |
United States, New Mexico |
1917-11-30 |
Shallow land veg. |
United States, New Mexico |
1917-11-30 |
Shinnery oak |
United States, New Mexico |
1917-11-29 |
Shinnery, Bunch grass, yucca |
United States, New Mexico |
1917-12-01 |
Shinnery, Meriolix, sand sage |
United States, New Mexico |
1917-11-29 |