Photographs from the Desert
Index to Scientific Names
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X
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Z
O
Scientific Name
Common Name
Oenothera deltoides
Dune evening primrose
Oenothera primiveris
Yellow desert primrose
Olneya tesota
Ironwood
Opuntia acanthocarpa
Buckhorn cholla
Opuntia acanthocarpa var. coloradensis
Buckhorn cholla
Opuntia basilaris
Beavertail cactus
Opuntia bigelovii
Teddy-bear cholla
Opuntia echinocarpa
Silver cholla
Opuntia erinacea
Old man prickly pear
Opuntia ramosissima
Pencil cholla
Opuntia species
Cholla
Orobanche cooperi
Broom-rape
Oxytheca perfoliata
Saucer plant
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