Echinodorus opacus
| Echinodorus opacus | |
|---|---|
| Scientific classification | |
| Kingdom: | Plantae |
| (unranked): | Angiosperms |
| (unranked): | Monocots |
| Order: | Alismatales |
| Family: | Alismataceae |
| Genus: | Echinodorus |
| Species: | E. opacus |
| Binomial name | |
| Echinodorus opacus Rataj in Folia geobot. phytotax. Praha, 5:215-6, 1970 | |
In Karel 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.
Description
Submersed leaves long-petioled, 16 to 22 cm long, petiole 10 to 15 cm long, blades shorter than the petioles, 5.5 to 7.5 cm long by 2.5 to 5.5 cm wide having five veins, heart-shaped, rarely lanceolate or oval, at the base usually lobate, rarely abrupt or acuminate, without pellucide markings.
Rhizome, short, upright. Infloresence unknown. The surface of the leaves is olive-green with lighter-coloured veins.
Distribution
- Brazil : Parana, Ponta Grossa, Santa Catarina
- Paraguay: Santa Maria
- Uruguay: Ibore
Cultivation
This plant is propagated by division or adventitious plantlets. It requires clear water, and can grow in tropical or rather cooler temperatures (down to about 14 °C and no higher than about 20 °C). It prefers bright light and a rich substrate. Rather slow growing, mainly by its creeping rhizome.
Collected by Thomas Horemann. Inflorescence so far unknown. Rare in the aquarium trade. Collected by Dierk Wanke. Upright inflorescence.