Eleocharis geniculata
annual spikerush, pantropic spikerush

Native to Florida

This spikerush is bigger than some forms of E. baldwinii, but smaller than other spikerushes; similar to E. flavescens. It might be found growing in single clumps in the shore water of a lake. This species is one of 30 Eleocharis in Florida (Wunderlin, 1998). Annual spikerush is sporadically distributed in the U.S. along the Pacific Coast, in the northeast, and among the southern states (Kartesz, 1999).

Annual spikerush is a sedge. Stems erect, wiry, to 16 in. tall; leaf blades none, just sheaths; sheath top pointed; inflorescence a single spikelet; spikelet ovoid, to 3/16 in. long, scales rounded; nutlets tiny, shiny, dark.

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