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Casp.</FullName><PartialName>Elodea densa</PartialName><CanonicalName>densa</CanonicalName><Rank>species</Rank></Name><Publication><ReferenceId>81ee01ea-86f1-4f1c-a6df-7907677c1b20</ReferenceId><Type>Generic</Type><Citation>NZFLORA (2012-) New Zealand Plant Names - Name based concepts</Citation></Publication></Concept><Type>has synonym of</Type><IsActive>true</IsActive><InUseByProviders /></Relationship></Relationships><Applications><Application><Type>has vernacular of</Type><Gender /><PartOfTaxon /><LifeStage /><Concept><ConceptId>f67f28f1-6ca0-4953-8d3d-6c7f6e501f67</ConceptId><Name><NameId>d270a695-674a-441e-8126-511462c6e5a6</NameId><FullName>Dense waterweed</FullName><PartialName>Dense waterweed</PartialName><CanonicalName /><Rank>none</Rank></Name><Publication><ReferenceId>75f23e1d-07a9-4ca0-a611-5d1069af5a59</ReferenceId><Type>Book</Type><Citation>Nicol, E. R. 1997: &lt;I&gt;Common Names of Plants in New Zealand.&lt;/I&gt; Lincoln,  Manaaki Whenua Press.</Citation></Publication></Concept></Application><Application><Type>has vernacular of</Type><Gender /><PartOfTaxon /><LifeStage /><Concept><ConceptId>e21003ff-895c-4523-9ac1-70867193d539</ConceptId><Name><NameId>cd9b5424-16b9-49b5-a60d-22ffa8801829</NameId><FullName>Egeria oxygen weed</FullName><PartialName>Egeria oxygen weed</PartialName><CanonicalName /><Rank>none</Rank></Name><Publication><ReferenceId>75f23e1d-07a9-4ca0-a611-5d1069af5a59</ReferenceId><Type>Book</Type><Citation>Nicol, E. 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R. 1997: &lt;I&gt;Common Names of Plants in New Zealand.&lt;/I&gt; Lincoln,  Manaaki Whenua Press.</Citation></Publication></Concept></Application></Applications><AddedDate>2012-02-29T12:35:52.25</AddedDate><ModifiedDate>2026-04-18T06:44:42.29</ModifiedDate></Concept><Concept><ConceptId>421674ec-5a35-47e9-880c-85ace06efa35</ConceptId><Name><NameId>cde7036b-b4cd-4cf7-b644-a2cec9cb835a</NameId><FullName>Egeria densa Planch.</FullName><PartialName>Egeria densa</PartialName><CanonicalName>densa</CanonicalName><Rank>species</Rank></Name><Publication><ReferenceId>a6b28f0c-c7af-4460-b423-54eaff5d6b46</ReferenceId><Type>Article</Type><Citation>Howell, C. 2008: Consolidated list of environmental weeds in New Zealand. &lt;I&gt;DOC Research &amp; Development Series&lt;/I&gt;&lt;I&gt; 292&lt;/I&gt;-42.</Citation></Publication><Orthography /><Rank /><HigherClassification /><Relationships><Relationship><Concept><ConceptId>421674ec-5a35-47e9-880c-85ace06efa35</ConceptId><Name><NameId>cde7036b-b4cd-4cf7-b644-a2cec9cb835a</NameId><FullName>Egeria densa Planch.</FullName><PartialName>Egeria densa</PartialName><CanonicalName>densa</CanonicalName><Rank>species</Rank></Name><Publication><ReferenceId>a6b28f0c-c7af-4460-b423-54eaff5d6b46</ReferenceId><Type>Article</Type><Citation>Howell, C. 2008: Consolidated list of environmental weeds in New Zealand. &lt;I&gt;DOC Research &amp; Development Series&lt;/I&gt;&lt;I&gt; 292&lt;/I&gt;-42.</Citation></Publication></Concept><Type>is synonym of</Type><IsActive>false</IsActive><InUseByProviders /></Relationship></Relationships><Applications /><AddedDate>2012-02-29T12:35:52.25</AddedDate><ModifiedDate xsi:nil="true" /></Concept><Concept><ConceptId>45d74bbe-9ad9-485e-8dd1-96b8fec6afa6</ConceptId><Name><NameId>cde7036b-b4cd-4cf7-b644-a2cec9cb835a</NameId><FullName>Egeria densa Planch.</FullName><PartialName>Egeria densa</PartialName><CanonicalName>densa</CanonicalName><Rank>species</Rank></Name><Publication><ReferenceId>ce43966f-1ab4-4e4c-b843-14bbc317364b</ReferenceId><Type>Electronic source</Type><Citation>Biosecurity New Zealand (2012) Regional Pest Management Strategies Database. http://www.biosecurityperformance.maf.govt.nz/</Citation></Publication><Orthography /><Rank /><HigherClassification /><Relationships><Relationship><Concept><ConceptId>45d74bbe-9ad9-485e-8dd1-96b8fec6afa6</ConceptId><Name><NameId>cde7036b-b4cd-4cf7-b644-a2cec9cb835a</NameId><FullName>Egeria densa Planch.</FullName><PartialName>Egeria densa</PartialName><CanonicalName>densa</CanonicalName><Rank>species</Rank></Name><Publication><ReferenceId>ce43966f-1ab4-4e4c-b843-14bbc317364b</ReferenceId><Type>Electronic source</Type><Citation>Biosecurity New Zealand (2012) Regional Pest Management Strategies Database. http://www.biosecurityperformance.maf.govt.nz/</Citation></Publication></Concept><Type>is synonym of</Type><IsActive>false</IsActive><InUseByProviders /></Relationship></Relationships><Applications /><AddedDate>2012-02-29T12:10:37.623</AddedDate><ModifiedDate xsi:nil="true" /></Concept><Concept><ConceptId>f70cad1e-80e7-4955-ade9-bdfe2420aef2</ConceptId><Name><NameId>cde7036b-b4cd-4cf7-b644-a2cec9cb835a</NameId><FullName>Egeria densa Planch.</FullName><PartialName>Egeria densa</PartialName><CanonicalName>densa</CanonicalName><Rank>species</Rank></Name><Publication><ReferenceId>ccda915e-46c6-427b-bb2a-f92e2667dfd1</ReferenceId><Type>Electronic source</Type><Citation>Ministry for Primary Industries 23 Feb 2017: Unwanted Organisms Register. Version 02.01.02. https://www1.maf.govt.nz/uor</Citation></Publication><Orthography /><Rank /><HigherClassification /><Relationships /><Applications /><AddedDate>2017-06-16T16:06:10.623</AddedDate><ModifiedDate>2026-04-18T06:44:42.29</ModifiedDate></Concept><Concept><ConceptId>aabc3958-4fcc-40ea-98e1-ccc61ae38668</ConceptId><Name><NameId>cde7036b-b4cd-4cf7-b644-a2cec9cb835a</NameId><FullName>Egeria densa Planch.</FullName><PartialName>Egeria densa</PartialName><CanonicalName>densa</CanonicalName><Rank>species</Rank></Name><Publication><ReferenceId>ce43966f-1ab4-4e4c-b843-14bbc317364b</ReferenceId><Type>Electronic source</Type><Citation>Biosecurity New Zealand (2012) Regional Pest Management Strategies Database. http://www.biosecurityperformance.maf.govt.nz/</Citation></Publication><Orthography /><Rank /><HigherClassification /><Relationships><Relationship><Concept><ConceptId>aabc3958-4fcc-40ea-98e1-ccc61ae38668</ConceptId><Name><NameId>cde7036b-b4cd-4cf7-b644-a2cec9cb835a</NameId><FullName>Egeria densa Planch.</FullName><PartialName>Egeria densa</PartialName><CanonicalName>densa</CanonicalName><Rank>species</Rank></Name><Publication><ReferenceId>ce43966f-1ab4-4e4c-b843-14bbc317364b</ReferenceId><Type>Electronic source</Type><Citation>Biosecurity New Zealand (2012) Regional Pest Management Strategies Database. http://www.biosecurityperformance.maf.govt.nz/</Citation></Publication></Concept><Type>is synonym of</Type><IsActive>false</IsActive><InUseByProviders /></Relationship></Relationships><Applications /><AddedDate>2016-09-07T15:23:39.713</AddedDate><ModifiedDate>2026-04-18T06:44:42.29</ModifiedDate></Concept><Concept><ConceptId>55fa7a44-a8b1-4810-91c9-ee7828b3070a</ConceptId><Name><NameId>cde7036b-b4cd-4cf7-b644-a2cec9cb835a</NameId><FullName>Egeria densa Planch.</FullName><PartialName>Egeria densa</PartialName><CanonicalName>densa</CanonicalName><Rank>species</Rank></Name><Publication><ReferenceId>04be2c9e-9490-4533-b060-9c0d5f603990</ReferenceId><Type>Electronic source</Type><Citation>Biosecurity New Zealand (4 Aug 2011) Unwanted Organisms Register. http://www.biosecurity.govt.nz/pests/registers/uor</Citation></Publication><Orthography /><Rank /><HigherClassification /><Relationships><Relationship><Concept><ConceptId>55fa7a44-a8b1-4810-91c9-ee7828b3070a</ConceptId><Name><NameId>cde7036b-b4cd-4cf7-b644-a2cec9cb835a</NameId><FullName>Egeria densa Planch.</FullName><PartialName>Egeria densa</PartialName><CanonicalName>densa</CanonicalName><Rank>species</Rank></Name><Publication><ReferenceId>04be2c9e-9490-4533-b060-9c0d5f603990</ReferenceId><Type>Electronic source</Type><Citation>Biosecurity New Zealand (4 Aug 2011) Unwanted Organisms Register. http://www.biosecurity.govt.nz/pests/registers/uor</Citation></Publication></Concept><Type>is synonym of</Type><IsActive>true</IsActive><InUseByProviders /></Relationship></Relationships><Applications /><AddedDate>2012-02-29T12:35:52.25</AddedDate><ModifiedDate xsi:nil="true" /></Concept><Concept><ConceptId>507f0854-5c1f-43d4-9fb8-f72cc43d65ce</ConceptId><Name><NameId>cde7036b-b4cd-4cf7-b644-a2cec9cb835a</NameId><FullName>Egeria densa Planch.</FullName><PartialName>Egeria densa</PartialName><CanonicalName>densa</CanonicalName><Rank>species</Rank></Name><Publication><ReferenceId>04be2c9e-9490-4533-b060-9c0d5f603990</ReferenceId><Type>Electronic source</Type><Citation>Biosecurity New Zealand (4 Aug 2011) Unwanted Organisms Register. http://www.biosecurity.govt.nz/pests/registers/uor</Citation></Publication><Orthography /><Rank /><HigherClassification /><Relationships><Relationship><Concept><ConceptId>507f0854-5c1f-43d4-9fb8-f72cc43d65ce</ConceptId><Name><NameId>cde7036b-b4cd-4cf7-b644-a2cec9cb835a</NameId><FullName>Egeria densa Planch.</FullName><PartialName>Egeria densa</PartialName><CanonicalName>densa</CanonicalName><Rank>species</Rank></Name><Publication><ReferenceId>04be2c9e-9490-4533-b060-9c0d5f603990</ReferenceId><Type>Electronic source</Type><Citation>Biosecurity New Zealand (4 Aug 2011) Unwanted Organisms Register. http://www.biosecurity.govt.nz/pests/registers/uor</Citation></Publication></Concept><Type>is synonym of</Type><IsActive>false</IsActive><InUseByProviders /></Relationship></Relationships><Applications /><AddedDate>2016-09-07T15:23:39.713</AddedDate><ModifiedDate>2026-04-18T06:44:42.29</ModifiedDate></Concept></Concepts><ProviderNames><ProviderNameLink><NameId>66da2f61-bb75-47bc-a237-06a4d5e38e19</NameId><FullName>Egeria densa Planch.</FullName><ProviderCode>NZFLORA</ProviderCode><ProviderRecordId>265599A7-A6A6-445B-8209-1E555F7DB8A0</ProviderRecordId></ProviderNameLink></ProviderNames><Biostatuses><Biostatus><Biome><Value>Terrestrial</Value></Biome><EnvironmentalContext><Value>Wild</Value></EnvironmentalContext><Origin><Value>Exotic</Value></Origin><Occurrence><Value>Present</Value></Occurrence><GeoRegion><Value>New Zealand</Value></GeoRegion><GeoSchema><Value>ISO Country</Value></GeoSchema><IsActive><Value>true</Value></IsActive></Biostatus></Biostatuses><Annotations><Annotation><AnnotationId>c0278340-2b1d-40ae-997f-08dda9b2020b</AnnotationId><AnnotationType>editorial</AnnotationType><AnnotationText>We are aware that POWO is currently using the name Elodea densa. According to their website, this choice follows a 2021 Spanish publication on alien species (https://dx.doi.org/10.5209/bocm.75354
). However, this seems like an unusual source to base such a taxonomic decision on, particularly as the paper provides no supporting rationale for the change.

For our purposes, we prefer to continue using Egeria densa, as this remains the more widely recognised and familiar name within the scientific community, especially in New Zealand. It is also the name adopted in most floras, databases, and management plans, which ensures consistency and helps to avoid unnecessary confusion.</AnnotationText></Annotation></Annotations><DeprecatedNames /><IsSupported>true</IsSupported><AddedDate>2012-02-29T12:10:37.623</AddedDate><ModifiedDate>2026-04-18T06:44:22.587</ModifiedDate></Name></Names></Response>