Meredith Donaldson leads a Youth in Action group at Rock Bridge Memorial State Park

June 11, 2011 | 7:58 p.m. CDT
A group of seven Youth in Action participants listens Saturday morning as park aide, master naturalist and trained volunteer Meredith Donaldson, left, teaches how to identify honeysuckle, an invasive plant at Rock Bridge Memorial State Park. "Once you see it this much, you'll recognize it everywhere you go," Donaldson said.

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