Eutrema

Eutrema
	Eutrema tenue in bloom
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Eudicots
Clade:	Rosids
Order:	Brassicales
Family:	Brassicaceae
Genus:	Eutrema; R.Br. (1824)
Species
	45; see text
Synonyms
	Chalcanthus Boiss. (1867); Cordatifolium Y.Z.Zhao (2018); Esquiroliella H.Lev. (1916); Glaribraya H.Hara (1978); Hengduanshania Y.Z.Zhao (2018); Martinella H.Lev. (1904), nom. illeg.; Neomartinella Pilg. (1906); Pegaeophyton Hayek & Hand.-Mazz. (1922); Platycraspedum O.E.Schulz (1922); Taphrospermum C.A.Mey. (1831); Thellungiella O.E. Schulz (1924); Wasabia Matsum. (1899);

Eutrema is a genus of flowering plants of the family Brassicaceae, native to the Holarctic. Its best known member is wasabi, Eutrema japonicum. The name comes from the Greek εὐ- (eu-) 'well' et τρῆμα (trêma) 'hole', because of a hole in the septum of the fruit.^[3]

It is native to subarctic and subalpine regions of Eurasia and North America and to temperate Asia.^[2]

Species

Species accepted by the Plants of the World Online as of April 2024:^[2]

Eutrema altaicum (C.A.Mey.) Al-Shehbaz & Warwick
Eutrema angustiseptatum (Al-Shehbaz, T.Y.Cheo, L.L.Lu & G.Yang) Al-Shehbaz
Eutrema baimashanicum Al-Shehbaz, G.Q.Hao & J.Quan Liu
Eutrema botschantzevii (D.A.German) Al-Shehbaz & Warwick
Eutrema boufordii Al-Shehbaz
Eutrema bulbiferum Y.Xiao & D.K.Tian
Eutrema cordifolium Turcz. ex Ledeb.
Eutrema deltoideum (Hook.f. & Thomson) O.E.Schulz
Eutrema edwardsii R.Br.
Eutrema fontanum (Maxim.) Al-Shehbaz & Warwick
Eutrema giganteum G.Q.Hao, Al-Shehbaz & J.Quan Liu
Eutrema grandiflorum (Al-Shehbaz) Al-Shehbaz & Warwick
Eutrema halophilum (C.A.Mey.) Al-Shehbaz & Warwick
Eutrema heterophyllum (W.W.Sm.) H.Hara
Eutrema himalaicum Hook.f. & Thomson
Eutrema integrifolium (DC.) Bunge
Eutrema japonicum (Miq.) Koidz. – Japan; "wasabi"; common condiment
Eutrema lowndesii (H.Hara) Al-Shehbaz & Warwick
Eutrema minutissimum (O.E.Schulz) D.A.German & Al-Shehbaz
Eutrema nanum G.Q.Hao, J.Quan Liu & Al-Shehbaz
Eutrema nepalense (Al-Shehbaz, Kats.Arai & H.Ohba) Al-Shehbaz, G.Q.Hao & J.Quan Liu
Eutrema parviflorum Turcz. ex Ledeb.
Eutrema penlandii Rollins – Colorado, United States; "Mosquito Range mustard"
Eutrema platypetalum (Schrenk) Al-Shehbaz & Warwick
Eutrema pseudocordifolium Popov
Eutrema purii (D.S.Rawat, L.R.Dangwal & R.D.Gaur) Al-Shehbaz, G.Q.Hao & J.Quan Liu
Eutrema racemosum Al-Shehbaz, G.Q.Hao & J.Quan Liu
Eutrema renifolium (Boiss. & Hohen.) Al-Shehbaz, G.Q.Hao & J.Quan Liu
Eutrema salsugineum (Pall.) Al-Shehbaz & Warwick – Central Asia to North America; "saltwater cress"; extreme halophyte, model organism for salt tolerance
Eutrema scapiflorum (Hook.f. & Thomson) Al-Shehbaz, G.Q.Hao & J.Quan Liu
Eutrema schulzii Al-Shehbaz & Warwick
Eutrema sherriffii Al-Shehbaz & Warwick
Eutrema sinense (Hemsl.) G.Q.Hao, J.Quan Liu & Al-Shehbaz
Eutrema sulphureum (Al-Shehbaz) Al-Shehbaz
Eutrema tenue (Miq.) Makino – Japan; "yuriwasabi"; probably paraphyletic: some samples are closer to E. yunnanense, others closer to E. japonicum^[4]
Eutrema thibeticum Franch.
Eutrema tianshanense G.Q.Hao, J.Quan Liu & Al-Shehbaz
Eutrema verticillatum (Jeffrey & W.W.Sm.) Al-Shehbaz & Warwick
Eutrema violifolium (H.Lév.) Al-Shehbaz & Warwick
Eutrema watsonii (Al-Shehbaz) Al-Shehbaz
Eutrema wuchengyii (Al-Shehbaz, T.Y.Cheo, L.L.Lu & G.Yang) Al-Shehbaz & Warwick
Eutrema xingshanense (Z.E.Chao, Z.L.Ning & X.W.Hu) G.Q.Hao, Al-Shehbaz & J.Quan Liu
Eutrema yungshunense (W.T.Wang) Al-Shehbaz & Warwick
Eutrema yunnanense Franch.
Eutrema zhuxiense Q.L.Gan & Xin W.Li

References

^ Chloris Melvilliana a list of plants collected in Melville Island (latitude 74-75 N., longitude 110-112 W.) in the year 1820; by the officers of the voyage of discovery under the orders of Captain Parry, with characters and descriptions of the new genera and species 9–10, pl. A. 1823.
^ ^a ^b ^c ^d "Eutrema R.Br". Plants of the World Online. Royal Botanic Gardens, Kew. 2022. Retrieved 3 April 2024.
^ "Eutrema R. Brown". Flora of North America. 5 November 2020. Retrieved 28 January 2023..
^ Haga, Natsuko; Kobayashi, Masaaki; Michiki, Nana; Takano, Tomoyuki; Baba, Fujio; Kobayashi, Keiko; Ohyanagi, Hajime; Ohgane, Jun; Yano, Kentaro; Yamane, Kyoko (7 October 2019). "Complete chloroplast genome sequence and phylogenetic analysis of wasabi (Eutrema japonicum) and its relatives". Scientific Reports. 9 (1): 14377. Bibcode:2019NatSR...914377H. doi:10.1038/s41598-019-49667-z. PMC 6779752. PMID 31591417.

[1] Chloris Melvilliana a list of plants collected in Melville Island (latitude 74-75 N., longitude 110-112 W.) in the year 1820; by the officers of the voyage of discovery under the orders of Captain Parry, with characters and descriptions of the new genera and species 9–10, pl. A. 1823.

[powo-2] "Eutrema R.Br". Plants of the World Online. Royal Botanic Gardens, Kew. 2022. Retrieved 3 April 2024.

[FNA-3] "Eutrema R. Brown". Flora of North America. 5 November 2020. Retrieved 28 January 2023..

[4] Haga, Natsuko; Kobayashi, Masaaki; Michiki, Nana; Takano, Tomoyuki; Baba, Fujio; Kobayashi, Keiko; Ohyanagi, Hajime; Ohgane, Jun; Yano, Kentaro; Yamane, Kyoko (7 October 2019). "Complete chloroplast genome sequence and phylogenetic analysis of wasabi (Eutrema japonicum) and its relatives". Scientific Reports. 9 (1): 14377. Bibcode:2019NatSR...914377H. doi:10.1038/s41598-019-49667-z. PMC 6779752. PMID 31591417.

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