Field Guide to Jetty Island

July 10, 2011
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Large-headed sedge Carex macrocephala This plant’s stem is triangular and on top sits a spiky head. The flowers are either male or female, and sometimes both exist on the same plant. It blooms in the spring and the seeds ripen in the summer. It thrives along sandy beaches, especially on dunes. It’s long underground root system helps keep Jetty Island from eroding away. Spot upland in drier portions of the island. (Annie Mulligan / For The Herald)

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