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Yucca, grassland reduced to weed grass stage |
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1921-05-31 |
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Yucca plants in fruit |
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1921-05-31 |
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Yucca elata on weed grass |
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1921-05-31 |
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View of grassland, Boutelouas |
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1921-05-31 |
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View of desert toward mountains |
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1921-05-26 |
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View near ruins, vegetation |
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1921-05-28 |
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Veg. at back, Ironwood, Opuntia |
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1921-05-26 |
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Same desert type, pave, no vegetation |
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1921-05-25 |
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Over grazed desert grassland |
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1921-05-31 |
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Original wall of Casa Grande ruins |
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1921-05-28 |
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Old compound of ruins |
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1921-05-28 |
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Old compartment of ruin |
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1921-05-28 |
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Ironwood, Palo Verde, on desert |
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1921-05-26 |
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Ironwood, annuals on pave |
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1921-05-26 |
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Grinding stone, pottery at ruin |
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1921-05-28 |
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Grassland, yucca, agave, bear grass |
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1921-05-31 |
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Grassland, rocky hilltops |
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1921-05-31 |
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Grassland with bear grass, Yucca |
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1921-05-31 |
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Grassland with bear grass |
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1921-05-31 |
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Grassland with bear grass |
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1921-05-31 |
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Grassland with bear grass |
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1921-05-31 |
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Grass, Bouteloua hirsuta, general view |
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1921-05-31 |
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Giant cactus, ironwood, Covillea |
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1921-05-26 |
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Flower of Carnegiea gigantea |
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1921-05-29 |
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Detail of Carnegiea |
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1921-05-28 |
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Detail of Carnegiea |
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1921-05-29 |
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Desert pave, soil sampling |
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1921-05-26 |
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Desert pave, no vegetation |
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1921-05-25 |
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Desert pave, Covillea, Gaertneria |
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1921-05-26 |
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Desert pave, Covillea, Gaertneria |
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1921-05-26 |
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Cholla, Carnegiea, Isocoma, Covillea, typical of large areas |
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1921-05-29 |
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Casa Grande ruin |
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1921-05-28 |
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Carnegiea, cholla, Isocoma |
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1921-05-28 |
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C.F. Marbut |
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1921-05-26 |
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Alkali flat, no veg., white alkali |
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1921-05-31 |
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Alkali flat, no plants at all |
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1921-05-31 |
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