In Rataj's taxonomy Echinodorus opacus is in Section Portalegrensii, Subgenus Echinodorus.
Other authorities place this species like E. portoalegrensis as a synonym of Echinodorus uruguayensis.
Rhizome, short, upright. Infloresence unknown. Surface of the leaves is olive-green with lighter-coloured veins.
Santa CatarinaParaguay: Santa Maria Uruguay: Ibore
Collected by Thomas Horemann. Inflorescence so far unknown. Rare in the aquarium trade. Collected by Dierk Wanke. Upright inflorescence.
Investigators at Massachusetts Institute of Technology, Institute of Technology publish new data on rhodococcus.(Report)
Nov 16, 2010; New research, 'The Rhodococcus opacus PD630 heparin-binding hemagglutinin homolog TadA mediates lipid body formation,' is...