North America (eastern, western coast) ... Name Authority; Ceratophyllum demersum var. Synonym Full Citation Basionym Type; Dichotophyllum Dichotophyllum Moench, Methodus 345. Educational Projects & Seminars Materials, Proposals, Business Plan, Feasibility Studies, Career Jobs, Finance, Technology & School Admission 1794. elata. Scientific Name Common Name Herbarium Specimens Photos; Ceratophyllum australe: PRICKLY HORNWORT: Ceratophyllum demersum: COONTAIL: Ceratophyllum echinatum: SPINY HORNWORT: Identification Key. Ceratophyllum echinatum smooth hornwort Ceratophyllaceae R1. Ceratophyllum demersum: leaves mostly 1-time or 2-times forked and achenes with only 2 basal spines (vs. C. echinatum, with leaves mostly 3-times or 4-times … Spiny hornwort can be found in ponds and lakes, principally in eastern North America.It is the only species of its genus endemic to North America. The website also provides access to a database and images of herbarium specimens found at the University of South Florida and other herbaria. Its name comes from fruits, which have a warty surface and long spines. Ceratophyllum is a cosmopolitan genus of flowering plants including four accepted living species in 2016, commonly found in ponds, marshes, and quiet streams in tropical and in temperate regions. spineless hornwort in English cornifle échinée in French Name Synonyms Ceratophyllum demersum var. echinatum (A.Gray) A.Gray Ceratophyllum submersum var. echinatum (Gray) Wilmot-Dear: Common names. It most closely resembles C. echinatum (Spiny Coontail), which is much less common, has 5 or more leaves in a whorl, most leaves are forked 3 or 4 times and have few if any teeth, the leaf segments are more thread-like and limp, and fruit has spines along the edges as well as the tip and base. Cimicifuga elata var. Clallam County Rare Plants County list. View updates and changes made since May 2019 here. Ceratophyllum demersum coontail, horwort Ceratophyllum echinatum spineless hornwort Macroalgae from the family Characeae (Nitella, Chara) charaphyte(s) Sedges from the family Cyperaceae (Cyperus, Carex) sedge(s) Decodon verticillatus swamp loosestrife Egeria densa Brazilian elodea, Brazilian waterweed, common waterweed, South American waterweed HORNWORTS Ceratophyllum demersum and Ceratophyllum echinatum NATIVE TO MAINE. Habitat:Maine is home to two hornwort species: coontail (Ceratophyllum demersum) and prickly hornwort (Ceratophyllum echinatum), coontail being the more common of the two.Hornworts are found in the submersed plant community from shore to depths of several meters. Hornwort specimen. *The database used to provide updates to the Online Inventory is under construction. Native Introduced Native and Introduced. Click below on a thumbnail map or name for species profiles. Preferred name: Ceratophyllum echinatum ; Authority: Gray ; Notes. It is the only extant genus in the family Ceratophyllaceae, itself the only extant family in the order Ceratophyllales. The Plants Database includes the following 4 species of Ceratophyllum . Ceratophyllum echinatum, known as prickly hornwort, spiny hornwort, or spiny coontail, is an aquatic, perennial plant found in North America. ... Scientific Name Common Name Habitat Family Name. The Atlas of Florida Plants provides a source of information for the distribution of plants within the state and taxonomic information. Dryas drummondii var. Genus Synonyms. echinatum (A.Gray) Wilmot-Dear Homonyms Ceratophyllum echinatum A.Gray Common names Spineless hornwort in language. State Status Federal Status Scientific Name Common Name Habitat Family Name. Eastern, western coast )... Name Authority ; Ceratophyllum demersum var the state and taxonomic information of... 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