Tidal Spikesedge, Eleocharis aestuum, is an annual, aquatic, grass-like plant found in freshwater tidal communities in the Northeastern United States and Quebec, Canada. Like many sedges, it grows as a clump of skinny, non-branched leaves. The flowers are produced in a spike (a tight cluster of flowers) at the tips of the leaves. Eleocharis aestuum was only recently classified as distinct from E. diandra and E. ovata. Eleocharis diandra has pointed floral scales (tiny leaves) whereas E. aestuum has round floral scales. Eleocharis ovata typically has three stamens (stalks that produce pollen in the flower) whereas E. aestuum typically has two. Tidal Spikesedge is of conservation concern because of its very restricted global range and specific habitat requirements.
Copyright © 2017 Donald Cameron Photo Credit: Copyright © 2017 Donald Cameron
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