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Non-native artichoke, Yosemite Valley. "This year the park service is planning to eradicate bull thistle (Cirsium vulgare), mullein (Verbascum thapsus), the ice artichoke (Cynara humongus) and other invasive non-native plants that threaten priority areas of Yosemite Valley." - 2005 park service bulletin.
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| William Hartshorn | 11-May-2007 18:18 | |
| Guest | 22-Jan-2007 06:01 | |
| Christina Craft | 19-Jan-2005 23:58 | |
| Laryl | 17-Jan-2005 06:11 | |
| Susanne | 17-Jan-2005 02:37 | |
| Karen Leaf | 17-Jan-2005 01:40 | |
| Robin Reid | 16-Jan-2005 05:08 | |
| Herb | 16-Jan-2005 04:34 | |
| Guest | 16-Jan-2005 04:26 | |
| Gayle P. Clement | 16-Jan-2005 03:30 | |