Tidal Spikerush (Eleocharis aestuum)

Global Rank: G3 - Vulnerable
Legal Status: N/A
Family: Cyperaceae
State: CT, DE, MA, ME, NJ, NY, PA, QC, VT
Nature Serve ID: 145734
Lifeform: Graminoid
Date Inducted in National Collection:

Description:

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.

Where is Tidal Spikerush (Eleocharis aestuum) located in the wild?

States & Provinces:

Tidal Spikerush can be found in Connecticut, Delaware, Maine, Massachusetts, New Jersey, New York, Pennsylvania, Quebec, Vermont

Which CPC Partners conserve Tidal Spikerush (Eleocharis aestuum)?

Native Plant Trust

Not Sponsored

Assigned 06/09/17

CPC's Plant Sponsorship Program provides long term stewardship of rare plants in our National Collection. We are so grateful for all our donors who have made the Plant Sponsorship Program so successful. We are in the process of acknowledging all our wonderful plant sponsorship donors on our website. This is a work in progress and will be updated regularly.

Conservation Actions

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Tidal Spikerush (Eleocharis aestuum) Characteristics

Nomenclature

Taxon	Eleocharis aestuum
Authority	Hines ex A. Haines
Family	Cyperaceae
CPC Number	44904
ITIS	808402
USDA	ELAE2
Duration	Perennial
Common Names	Tidal Spikesedge \| tidal spikerush
Associated Scientific Names	Eleocharis aestuum
Distribution

State Rank

State	State Rank
Connecticut	SNR
Delaware	SH
Massachusetts	SNR
Maine	S2?
New Jersey	SNR
New York	S1
Pennsylvania	SNR
Quebec	S1
Vermont	S1

Ecological Relationships

Photos

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