 | 741-18. Green-head coneflower (Rudbeckia laciniata) in Mercer Arboretum and Botanical Gardens. Humble (Houston area), Texas, May 2, 2009Similar picturesSmall thumbnails | Use large thumbnails | View as slideshow |
| 741-18. Green-head coneflower (Rudbeckia laciniata) in Mercer Arboretum and Botanical Gardens. Humble (Houston area), Texas, May 2, 2009Similar picturesSmall thumbnails | Use large thumbnails | View as slideshow |
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