Robert W. Freckmann Herbarium

Category type: Aquatic

Identification Guide Questionaire Form for Aquatic
Publication available from UW Extension - Lakes Program "Through The Looking Glass: A Field Guide to Aquatic Plants."
Total records: 175 Click Column head to change sort. - Sort order: Taxa
Taxon Family Common Name Photograph
Acorus calamus L. Acoraceae  sweet-flag Photograph of Acorus calamus L.
Alisma gramineum Lej. Alismataceae  grass-leaved water-plantain, narrow-leaved water-plantain Photograph of Alisma gramineum Lej.
Alisma subcordatum Raf. Alismataceae  American water-plantain, common water-plantain, southern water-plantain Photograph of Alisma subcordatum Raf.
Alisma triviale Pursh Alismataceae  northern water-plantain Photograph of Alisma triviale Pursh
Armoracia lacustris (A.Gray) Al-Shehbaz & V.M.Bates Brassicaceae  lake cress Photograph of Armoracia lacustris (A.Gray) Al-Shehbaz & V.M.Bates
Azolla caroliniana Willd. Azollaceae  Carolina mosquito-fern, eastern mosquito-fern Photograph of Azolla caroliniana Willd.
Azolla mexicana C.Presl Azollaceae  floating-fern, Mexican azolla, Mexican mosquito-fern Photograph of Azolla mexicana C.Presl
Bacopa rotundifolia (Michx.) Wettst. Scrophulariaceae  disc water-hyssop Photograph of Bacopa rotundifolia (Michx.) Wettst.
Berula erecta (Huds.) Coville Apiaceae  cut-leaved water-parsnip, low water-parsnip Photograph of Berula erecta (Huds.) Coville
Brasenia schreberi J.F.Gmel. Cabombaceae  water-shield Photograph of Brasenia schreberi J.F.Gmel.
Butomus umbellatus L. Butomaceae  flowering-rush Photograph of Butomus umbellatus L.
Calla palustris L. Araceae  water-arum, wild calla Photograph of Calla palustris L.
Callitriche hermaphroditica L. Callitrichaceae  autumnal water-starwort, northern water-starwort Photograph of Callitriche hermaphroditica L.
Callitriche heterophylla Pursh Callitrichaceae  large water-starwort Photograph of Callitriche heterophylla Pursh
Callitriche marginata Torr. Callitrichaceae  winged water-starwort Photograph of Callitriche marginata Torr.
Callitriche palustris L. Callitrichaceae  common water-starwort, vernal water-starwort Photograph of Callitriche palustris L.
Callitriche stagnalis Scop. emend Kütz. Callitrichaceae  pond water-starwort Photograph of Callitriche stagnalis Scop. emend Kütz.
Callitriche terrestris Raf. Callitrichaceae  terrestrial water-starwort Photograph of Callitriche terrestris Raf.
Caltha natans Pall. Ranunculaceae  floating marsh-marigold Photograph of Caltha natans Pall.
Catabrosa aquatica (L.) P.Beauv. Poaceae  brook grass, water whorl-grass Photograph of Catabrosa aquatica (L.) P.Beauv.
Ceratophyllum demersum L. Ceratophyllaceae  coon's-tail, hornwort Photograph of Ceratophyllum demersum L.
Ceratophyllum echinatum A.Gray Ceratophyllaceae  prickly hornwort, spiny hornwort Photograph of Ceratophyllum echinatum A.Gray
Didiplis diandra (Nutt. ex DC.) A.W.Wood Lythraceae  water-purslane Photograph of Didiplis diandra (Nutt. ex DC.) A.W.Wood
Echinodorus berteroi (Spreng.) Fassett Alismataceae  erect bur-head, tall bur-head, upright bur-head Photograph of Echinodorus berteroi (Spreng.) Fassett
Elatine minima (Nutt.) Fisch. & C.A.Mey. Elatinaceae  mud-purslane, small waterwort Photograph of Elatine minima (Nutt.) Fisch. & C.A.Mey.
Elatine triandra Schkuhr Elatinaceae  greater waterwort, long-stem waterwort, water-purslane Photograph of Elatine triandra Schkuhr
Elodea canadensis Michx. Hydrocharitaceae  Canadian waterweed, common waterweed Photograph of Elodea canadensis Michx.
Elodea nuttallii (Planch.) H.St.John Hydrocharitaceae  free-flowered water-weed, slender water-weed Photograph of Elodea nuttallii (Planch.) H.St.John
Equisetum fluviatile L. Equisetaceae  pipes, river horsetail, water horsetail Photograph of Equisetum fluviatile L.
Eriocaulon aquaticum (Hill) Druce Eriocaulaceae  seven-angle pipewort, white buttons Photograph of Eriocaulon aquaticum (Hill) Druce
Glyceria borealis (Nash) Batch. Poaceae  northern manna grass Photograph of Glyceria borealis (Nash) Batch.
Glyceria canadensis (Michx.) Trin. Poaceae  rattlesnake grass, rattlesnake manna grass Photograph of Glyceria canadensis (Michx.) Trin.
Glyceria grandis S.Watson Poaceae  American manna grass, reed manna grass Photograph of Glyceria grandis S.Watson
Glyceria maxima (Hartm.) Holmb. Poaceae  English water grass, reed manna grass, tall manna grass Photograph of Glyceria maxima (Hartm.) Holmb.
Glyceria septentrionalis Hitchc. Poaceae  eastern manna grass, floating manna grass Photograph of Glyceria septentrionalis Hitchc.
Glyceria striata (Lam.) Hitchc. Poaceae  fowl manna grass, fowl meadow grass Photograph of Glyceria striata (Lam.) Hitchc.
Heteranthera dubia (Jacq.) MacMill. Pontederiaceae  water star-grass Photograph of Heteranthera dubia (Jacq.) MacMill.
Hippuris vulgaris L. Hippuridaceae  common mare's tail, mare's tail Photograph of Hippuris vulgaris L.
Hydrilla verticillata (L.f.) Royle Hydrocharitaceae  hydrilla, water-thyme Photograph of Hydrilla verticillata (L.f.) Royle
Iris pseudacorus L. Iridaceae  pale-yellow iris, water flag, yellow flag, yellow iris, yellow water flag, yellow water iris Photograph of Iris pseudacorus L.
Iris virginica L. var. shrevei (Small) E.S.Anderson Iridaceae  blue flag, Shreve's iris, southern blue flag, Virginia iris Photograph of Iris virginica L. var. shrevei (Small) E.S.Anderson
Isoetes echinospora Durieu Isoetaceae  spiny-spored quillwort, stiff quillwort Photograph of Isoetes echinospora Durieu
Isoetes lacustris L. Isoetaceae  deep-water quillwort, lake quillwort, large-spored quillwort Photograph of Isoetes lacustris L.
Isoetes X hickeyi W.C.Taylor & Luebke Isoetaceae  Hickey's quillwort NO Photograph available
Lemna aequinoctialis Welw. Lemnaceae  lesser duckweed, three-nerved duckweed Photograph of Lemna aequinoctialis Welw.
Lemna minor L. Lemnaceae  common duckweed, lesser duckweed, small duckweed Photograph of Lemna minor L.
Lemna obscura (Austin) Daubs Lemnaceae  little duckweed, purple duckweed Photograph of Lemna obscura (Austin) Daubs
Lemna perpusilla Torr. Lemnaceae  least duckweed, minute duckweed Photograph of Lemna perpusilla Torr.
Lemna trisulca L. Lemnaceae  forked duckweed, star duckweed Photograph of Lemna trisulca L.
Lemna turionifera Landolt Lemnaceae  perennial duckweed, Turion duckweed Photograph of Lemna turionifera Landolt
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