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Family: Cyperaceae
  Genus: Eleocharis

    Eleocharis acicularis (L.) Roem. & Schult.*+

        needle spike-rush
             Eleocharis acicularis (L.) Roem. & Schult. f. acicularis
             Eleocharis acicularis (L.) Roem. & Schult. f. fluitans (Döll ex Glück) Svenson
             Eleocharis acicularis (L.) Roem. & Schult. f. inundata Svenson
             Eleocharis acicularis (L.) Roem. & Schult. f. longicaulis (Desm.) Hegi
             Eleocharis acicularis (L.) Roem. & Schult. var. acicularis
             Eleocharis acicularis (L.) Roem. & Schult. var. gracilescens Svenson
             Eleocharis acicularis (L.) Roem. & Schult. var. occidentalis Svenson
             Eleocharis acicularis (L.) Roem. & Schult. var. porcata S.G.Sm.
             Eleocharis acicularis (L.) Roem. & Schult. var. submersa (Nilsson) Svenson
             Eleocharis acicularis (L.) Roem. & Schult. var. typica Svenson
             Eleocharis acicularis (L.) Roem. & Schult. f. inundata Svenson var. typica Svenson
             Scirpus acicularis L.
    Eleocharis compressa Sull.
        flat-stemmed spike-rush
    Eleocharis compressa Sull. var. compressa *+

        flat-stemmed spike-rush
             Eleocharis acuminata (Muhl.) Nees
             Eleocharis elliptica Kunth var. compressa (Sull.) Drapalik & Mohlenbr.
    Eleocharis elliptica Kunth*+

        elliptic spike-rush
             Eleocharis capitata (L.) R.Br. var. borealis Svenson
             Eleocharis compressa Sull. var. atrata Svenson
             Eleocharis compressa Sull. var. borealis (Svenson) Drapalik & Mohlenbr.
             Eleocharis elliptica Kunth f. atrata (Svenson) Drapalik & Mohlenbr.
             Eleocharis elliptica Kunth var. atrata (Svenson) S.G.Sm.
             Eleocharis elliptica Kunth var. elliptica
             Eleocharis tenuis (Willd.) Schult. var. atrata (Svenson) B.Boivin
             Eleocharis tenuis (Willd.) Schult. var. borealis (Svenson) Gleason
    Eleocharis engelmannii Steud.
        Engelmann's spike-rush
    Eleocharis engelmannii Steud. var. detonsa A.Gray+

        Engelmann's spike-rush
             Eleocharis engelmannii Steud. f. detonsa (A.Gray) Svenson
             Eleocharis obtusa (Willd.) Schult. var. detonsa (A.Gray) Drapalik & Mohlenbr.
    Eleocharis engelmannii Steud. var. engelmannii
        Engelmann's spike-rush
             Eleocharis engelmannii Steud. var. monticola (Fernald) Svenson
             Eleocharis engelmannii Steud. var. robusta Fernald
             Eleocharis monticola Fernald
             Eleocharis monticola Fernald var. pallida H.St.John
             Eleocharis obtusa (Willd.) Schult. var. engelmannii (Steud.) Gilly
             Eleocharis ovata (Roth) Roem. & Schult. var. engelmannii (Steud.) Britton
    Eleocharis equisetoides (Elliott) Torr.*+

        horsetail spike-rush, jointed spike-sedge, knotted spike-rush
             Eleocharis elliottii A.Dietr.
             Scirpus equisetoides Elliott
    Eleocharis erythropoda Steud.*+

        bald spike-rush
             Eleocharis calva Torr.
             Eleocharis glaucescens (Willd.) Roem. & Schult.
             Scirpus glaucus Torr.
             Trichophyllum palustre (L.) Farw. var. calvum (Torr.) House
    Eleocharis erythropoda Steud. X E. palustris (L.) Roem. & Schult.
        
    Eleocharis flavescens (Poir.) Urban
        pale spike-rush, wrinkle-sheathed spike-rush, yellow spike-rush
    Eleocharis flavescens (Poir.) Urban var. olivacea (Torr.) Gleason*+

        bright green spike-rush, capitate spike-rush, green spike-rush
             Eleocharis flaccida (Rchb.) Urb. var. olivacea (Torr.) Fernald & Griscom
             Eleocharis olivacea Torr.
             Eleocharis olivacea Torr. var. olivacea
             Eleocharis olivacea Torr. var. reductiseta (Schuyler & Ferren) Schuyler & Ferren
    Eleocharis intermedia Schult.*+

        matted spike-rush
             Eleocharis intermedia Schult. var. habereri Fernald
             Eleocharis reclinata Kunth
             Scirpus intermedius Muhl.
    Eleocharis macrostachya Britton
        
             Eleocharis perlonga Fernald & Brackett
             Eleocharis xyridiformis Fernald & Brackett
    Eleocharis mamillata (H.Lindb.) H.Lindb.
        mamillate spike-rush
    Eleocharis mamillata (H.Lindb.) H.Lindb. subsp. mamillata*+

        mamillate spike-rush
             Scirpus mamillatus H.Lindb.
    Eleocharis nitida Fernald*+

        neat spike-rush, quill spike-rush, slender spike-rush
    Eleocharis obtusa (Willd.) Schult.*+

        blunt spike-rush
             Eleocharis obtusa (Willd.) Schult. var. ellipsoidalis Fernald
             Eleocharis obtusa (Willd.) Schult. var. gigantea Fernald
             Eleocharis obtusa (Willd.) Schult. var. jejuna Fernald
             Eleocharis obtusa (Willd.) Schult. var. peasei Svenson
             Eleocharis ovata (Roth) Roem. & Schult. var. obtusa (Willd.) Kük. ex Skottsb.
             Scirpus obtusus Willd.
    Eleocharis ovata (Roth) Roem. & Schult.+

        oval spike-rush
             Eleocharis annua House
             Eleocharis obtusa (Willd.) Schult. var. heuseri Uechtr.
             Eleocharis obtusa (Willd.) Schult. var. ovata (Roth) Drapalik & Mohlenbr.
             Scirpus ovatus Roth
    Eleocharis palustris (L.) Roem. & Schult.*+

        common spike-rush, marsh spike-rush
             Eleocharis calva Torr. var. australis (Nees) H.St.John
             Eleocharis mamillata auct. non H.Lindb.
             Eleocharis palustris (L.) Roem. & Schult. var. australis Nees
             Eleocharis palustris (L.) Roem. & Schult. var. major Sond.
             Eleocharis smallii Britton
             Eleocharis smallii Britton var. major (Sond.) F.Seym.
             Scirpus palustris L.
    Eleocharis parvula (Roem. & Schult.) Link ex Bluff, Nees & Schauer
        dwarf spike-rush
             Scirpus nanus Spreng.
    Eleocharis quadrangulata (Michx.) Roem. & Schult.*+

        angled spike-rush, square-stem spike-rush
             Eleocharis quadrangulata (Michx.) Roem. & Schult. var. crassior Fernald
             Scirpus albomarginatus Schult.
             Scirpus marginatus Muhl.
             Scirpus quadrangulatus Michx.
    Eleocharis quinqueflora (Hartmann) Schwarz*+

        few-flowered spike-rush
             Eleocharis fernaldii (Svenson) A.Löve
             Eleocharis pauciflora (Lightf.) Link
             Eleocharis pauciflora (Lightf.) Link var. fernaldii Svenson
             Eleocharis quinqueflora (Hartmann) Schwarz subsp. fernaldii
             Scirpus pauciflorus Lightf.
             Scirpus quinqueflorus Hartmann
    Eleocharis robbinsii Oakes*+

        Robbins' spike-rush
    Eleocharis rostellata (Torr.) Torr.*+

        beaked spike-rush, walking sedge
             Eleocharis rostellata (Torr.) Torr. var. congdonii Jeps.
             Eleocharis rostellata (Torr.) Torr. var. occidentalis S.Watson
             Scirpus rostellatus Torr.
    Eleocharis tenuis (Willd.) Schult.
        dog's hair, slender spike-rush
    Eleocharis tenuis (Willd.) Schult. var. verrucosa (Svenson) Svenson+

        dog's hair, slender spike-rush
             Eleocharis capitata (L.) R.Br. var. verrucosa Svenson
             Eleocharis verrucosa (Svenson) L.J.Harms
    Eleocharis wolfii (A.Gray) A.Gray ex Britton*+

        Wolf's spike-rush
             Scirpus wolfii A.Gray

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