 | 1459-09. Paper-spined cholla cactus (Opuntia articulata) in Mercer Arboretum and Botanical Gardens. Humble (Houston area), Texas, July 18, 2014Similar picturesSmall thumbnails | Use large thumbnails | View as slideshow |
| 1459-09. Paper-spined cholla cactus (Opuntia articulata) in Mercer Arboretum and Botanical Gardens. Humble (Houston area), Texas, July 18, 2014Similar picturesSmall thumbnails | Use large thumbnails | View as slideshow |
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