This Echinodorus hybrid is found in trade under the name of Echinodorus 'Rubin' var. lancifolius. Scientific variety terms (var.) are not permissible for cultivar names, though.
This plant may not be the same as the variety Echinodorus 'Rubin' "narrow leaf" (please see Kasselmann (2010), Aquarienpflanzen). We'd be happy to receive further information regarding this subject.
- to be continued -
<a href="https://www.flowgrow.de/db/aquaticplants/echinodorus-rubin-var-lancifolius" target="_blank"><img alt="Echinodorus 'Rubin var. lancifolius'" title="Echinodorus 'Rubin var. lancifolius'" src="https://www.flowgrow.de/db/widget/aquaticplants/echinodorus-rubin-var-lancifolius" /></a>
[url=https://www.flowgrow.de/db/aquaticplants/echinodorus-rubin-var-lancifolius][img]https://www.flowgrow.de/db/widget/aquaticplants/echinodorus-rubin-var-lancifolius[/img][/url]
[widget=aquaticplants/echinodorus-rubin-var-lancifolius]Echinodorus 'Rubin var. lancifolius'[/widget]