The Genus Eleocharis

Needle Spikerush: Eleocharis acicularis (Synonyms: Eleocharis acicularis var. acicularis, Eleocharis acicularis var. gracilescens, Eleocharis acicularis var. occidentalis, Eleocharis acicularis var. porcata, Eleocharis acicularis var. submersa, Scirpus acicularis)

Blunt Spikerush, Ovate Spikerush, Ovoid Spikerush: Eleocharis obtusa (Synonyms: Eleocharis obtusa var. ellipsoidales, Eleocharis obtusa var. gigantea, Eleocharis obtusa var. jejuna, Eleocharis obtusa var. obtusa, Eleocharis obtusa var. peasei, Eleocharis ovata, Scirpus ovatus, Scirpus ovatus var. heuseri, Scirpus obtusus)

Common Spikerush, Creeping Spikerush: Eleocharis palustris (Synonyms: Eleocharis macrostachya, Eleocharis mamilata, Eleocharis palustris var. major, Eleocharis palustris var. palustris, Eleocharis smallii, Eleocharis uniglumis, Scirpus palustris)