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Eleocharis equisetoides
Also called Horsetail Spike Rush, Horsetail Spikerush, Jointed Spike Rush, Jointed Spikerush, Knotted Spike Rush, Knotted Spikerush, Horse Tail Spikerush
Eleocharis equisetoides, with common names including horsetail spike-rush, jointed spike-rush, spikesedge, and knotted spike-rush, is a plant species native to the United States and Ontario, usually in freshwater wetland areas. It is known primarily from the Atlantic coastal plain from Texas to Massachusetts, and the Great Lakes region, with scattered populations elsewhere.
Eleocharis equisetoides and the related E. interstincta have hollow stems with complete transverse septa. This gives them a jointed appearance superficially resembling the stems of some species of Equisetum. The two species can be distinguished by the length of the perianth bristles subtending the achenes.
Needle spikerush · Sharp Spike Sedge · Purple spikerush · Glades spikerush · Bolander's spikerush · Eleocharis brassii · Eleocharis caespitosissima · Algal Bulrush · Drooping Spikerush · Eleocharis dietrichiana · Chinese water chestnut · Bald spikerush
Text excerpted from the Wikipedia article Eleocharis equisetoides by its contributors, under CC BY-SA 4.0; the excerpts are shared under the same licence.
Life form, climate and native range: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew (CC BY 3.0), reformatted; see Plants of the World Online.
