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''Saururus'' is a genus of plants in the family
Saururaceae Saururaceae is a plant family comprising four genera and seven species of herbaceous flowering plants native to eastern and southern Asia and North America. The family has been recognised by most taxonomists, and is sometimes known as the "lizard ...
containing two species. ''
Saururus cernuus ''Saururus cernuus'' (lizard's tail, water-dragon, dragon's tail, swamp root) is a medicinal plant, medicinal and ornamental plant native to eastern North America. It grows in wet areas or shallow water, and can be up to about a meter tall. The ...
'' is native to North America, and ''
Saururus chinensis ''Saururus chinensis'', commonly known as Asian lizard's tail, is an herb that grows in low, damp places to more than 1 meter high, endemic to China, India, Japan (including the Ryukyu Islands), Korea, Philippines, and Vietnam. Its leaves are gre ...
'' is native to Asia.


Fossil record

Several
fossil A fossil (from Classical Latin , ) is any preserved remains, impression, or trace of any once-living thing from a past geological age. Examples include bones, shells, exoskeletons, stone imprints of animals or microbes, objects preserved ...
seeds A seed is an embryonic plant enclosed in a protective outer covering, along with a food reserve. The formation of the seed is a part of the process of reproduction in seed plants, the spermatophytes, including the gymnosperm and angiosperm pl ...
of †''Saururus bilobatus'' have been described from
middle Miocene The Middle Miocene is a sub-epoch of the Miocene Epoch made up of two stages: the Langhian and Serravallian stages. The Middle Miocene is preceded by the Early Miocene. The sub-epoch lasted from 15.97 ± 0.05 Ma to 11.608 ± 0.005 Ma (million y ...
strata In geology and related fields, a stratum ( : strata) is a layer of rock or sediment characterized by certain lithologic properties or attributes that distinguish it from adjacent layers from which it is separated by visible surfaces known as ei ...
of the Fasterholt area near
Silkeborg Silkeborg () is a Danish town with a population of 49,747 (1 January 2022).Jutland Jutland ( da, Jylland ; german: Jütland ; ang, Ēota land ), known anciently as the Cimbric or Cimbrian Peninsula ( la, Cimbricus Chersonesus; da, den Kimbriske Halvø, links=no or ; german: Kimbrische Halbinsel, links=no), is a peninsula of ...
,
Denmark ) , song = ( en, "King Christian stood by the lofty mast") , song_type = National and royal anthem , image_map = EU-Denmark.svg , map_caption = , subdivision_type = Sovereign state , subdivision_name = Danish Realm, Kingdom of Denmark ...
.Angiosperm Fruits and Seeds from the Middle Miocene of Jutland (Denmark) by
Else Marie Friis Else Marie Friis (born 18 June 1947) is a Danish botanist and paleontologist. She is Professor Emerita in the Department of Geoscience at Aarhus University. Her work has been fundamental in the phylogenetic analysis of angiosperms, with widespre ...
, The Royal Danish Academy of Sciences and Letters 24:3, 1985


References

{{Taxonbar, from=Q159789 Piperales genera Saururaceae