Unresolved name

Unresolved name: Plants » Ferns » Polypodiopsida » Equisetales » Horsetails » Horsetail «

Equisetum knowltoni Fontaine

Scientific Names

Preferred Names

Species recognized by GBIF classification

Species recognized by Paleobiology Database

Species recognized by GBIF data coverage

Common Names

There are no common names associated with this taxon.

Tracheophyta

Polypodiopsida

Equisetales

Equisetaceae

Equisetum L.

Equisetum knowltoni Fontaine (this page)

Equisetum abiquiense Fontaine

Equisetum alexanderi Brown

Equisetum alsaticum (H. P. Fuchs & Geissert) G. Philippi ex Lubienski & Bennert

Equisetum aquatile Becker

Equisetum arvense L.

Equisetum arvense × Equisetum fluviatile

Equisetum arvense × Equisetum fluviatile

Equisetum arvense × Equisetum palustre

Equisetum arvense × Equisetum palustre

Equisetum arvense × Equisetum pratense

Equisetum arvense × Equisetum sylvaticum

Equisetum ascendens Lubienski & Bennert

Equisetum bogotense Kunth

Equisetum boureaui

Equisetum bowmanii C. N. Page

Equisetum canaliculatum Knowlton 1899

Equisetum cascadensis Lapasha & Miller 1985

Equisetum collieri Knowlton

Equisetum coloradense Knowlton

Equisetum columnare Brongniart 1828

Equisetum deciduum Knowlton 1899

Equisetum dycei C. N. Page

Equisetum ferrissii Clute

Equisetum fluviatile L.

Equisetum fluviatile × Equisetum palustre

Equisetum fluviatoides Mc Iver & Basinger 1989

Equisetum font-queri Rothm.

Equisetum geissertii Lubienski & Bennert

Equisetum giganteum L.

Equisetum globulosum Lesquereux

Equisetum haguei Knowlton 1899

Equisetum haukeanum Mickel & A. R. Sm.

Equisetum haydenii Lesquereux

Equisetum hybridum Huter

Equisetum hyemale L.

Equisetum hyemale × Equisetum ramosissimum

Equisetum hyemale × Equisetum variegatum

Equisetum hyemale × Equisetum variegatum

Equisetum laevigatum A. Braun

Equisetum lapponicum Lubienski & Dörken

Equisetum lesquereuxii Knowlton 1898

Equisetum litorale Kuehlew. ex Rupr.

Equisetum lofotense Lubienski

Equisetum lyellii Mantell

Equisetum magnum Hickey 1977

Equisetum marylandicum Fontaine

Equisetum mchaffieae C. N. Page

Equisetum meridionale (Milde) Chiov.

Equisetum mildeanum Rothm.

Equisetum mokhotlongensis Ellenberger 1970

Equisetum montanensis Lapasha & Miller 1985

Equisetum montellii Hiitonen

Equisetum moorei Newman

Equisetum myriochaetum Cham. & Schltdl.

Equisetum naegelianum W. Koch ex Rothm.

Equisetum nelsonii J. H. Schaffn.

Equisetum oregonense Newberry

Equisetum palustre L.

Equisetum palustre × Equisetum pratense

Equisetum powelli Fontaine

Equisetum pratense Ehrh.

Equisetum pratense × Equisetum sylvaticum

Equisetum pratense × Equisetum sylvaticum

Equisetum ramosissimum Desf.

Equisetum ramosissimum × Equisetum variegatum

Equisetum robertsii Dines

Equisetum rogersi Schimper & Fontaine 1883

Equisetum rothmaleri C. N. Page

Equisetum schaffneri J. Milde

Equisetum scirpides × Equisetum variegatum

Equisetum scirpoides Michx.

Equisetum sergijevskianum C. N. Page & Gureeva

Equisetum sylvaticum L.

Equisetum telmateia Ehrh.

Equisetum tenggerense Hochr.

Equisetum texense Fontaine

Equisetum tipperarense Berry

Equisetum trachyodon (A. Br.) Koch

Equisetum variegatum Schleich.

Equisetum virginicum Fontaine

Equisetum wilmottii C. N. Page

Equisetum × arcticum Rothm.