Echinodorus argentinensis
Encyclopedia
In Rataj's classification Echinodorus argentinensis is in Section Cordifolii, Subgenus Echinodorus.
Other authorities question the specific rank of this species.
erect, long-petioled, 80-120 cm long. Blade ovate, at the tip shortly acuminate, at the base abrupt, or regularly oval, at the tip blunt or incised, 15 - 26 cm x 7 - 15 cm wide with 7 - 13 veins and distinct pellucid lines. Submersed leaves
on short petioles, blades oval or ovate, on both ends acuminate or blunt. This species has two forms.
Stem erect, 90 - 150 cm long, sparse and inconspicuously warted, infloresence paniculate, broadly branched in the lower whorl, having 5 - 12 whorls containing 6 - 12 flowers each. Bracts shorter or longer than the pedicels. Pedicels 1 - 2.5 cm long, sepals broadly ovate, ribbed, 4 - 6 mm long, petals white, corolla 3 - 4 cm in diameter. Stamens usually 24. Aggregate fruit
globular, shortly echinate, achenes compressed, 3 mm long x 1 mm wide, having 3 - 5 ribs and 3 glands placed usually in one row, beak 0.4 - 0.5 mm long.
Veins are often dark reddish-brown and the blade may have reddish-brown irregular spots.
soon growing out of the water. In the wild it grows in sticky mud along rivers. Rataj reports hybrids with E. grandiflorus and E. longiscapus which have mixed features. Supplement with iron and CO2 if possible. Seems to prefer soft to hard water.
Seems to bloom best in cooler water and in short-day conditions.
Apparently rarely found in the trade, the majority (if not all) specimens being offered being E. palaefolius.
Other authorities question the specific rank of this species.
Synonyms
E. grandiflorus ovatus Mich.; E. ellipticus var. latifolius Micheli sensu Hauman; Alisma grandiflora; E. longistylus hort.Description
Emerse leavesLeaves
-History:Vocalist Arnar Gudjonsson was formerly the guitarist with Mower, and he was joined by Hallur Hallsson , Arnar Ólafsson , Bjarni Grímsson , and Andri Ásgrímsson . Late in 2001 they played with Emiliana Torrini and drew early praise from the New York Times...
erect, long-petioled, 80-120 cm long. Blade ovate, at the tip shortly acuminate, at the base abrupt, or regularly oval, at the tip blunt or incised, 15 - 26 cm x 7 - 15 cm wide with 7 - 13 veins and distinct pellucid lines. Submersed leaves
Leaves
-History:Vocalist Arnar Gudjonsson was formerly the guitarist with Mower, and he was joined by Hallur Hallsson , Arnar Ólafsson , Bjarni Grímsson , and Andri Ásgrímsson . Late in 2001 they played with Emiliana Torrini and drew early praise from the New York Times...
on short petioles, blades oval or ovate, on both ends acuminate or blunt. This species has two forms.
Stem erect, 90 - 150 cm long, sparse and inconspicuously warted, infloresence paniculate, broadly branched in the lower whorl, having 5 - 12 whorls containing 6 - 12 flowers each. Bracts shorter or longer than the pedicels. Pedicels 1 - 2.5 cm long, sepals broadly ovate, ribbed, 4 - 6 mm long, petals white, corolla 3 - 4 cm in diameter. Stamens usually 24. Aggregate fruit
Fruit
In broad terms, a fruit is a structure of a plant that contains its seeds.The term has different meanings dependent on context. In non-technical usage, such as food preparation, fruit normally means the fleshy seed-associated structures of certain plants that are sweet and edible in the raw state,...
globular, shortly echinate, achenes compressed, 3 mm long x 1 mm wide, having 3 - 5 ribs and 3 glands placed usually in one row, beak 0.4 - 0.5 mm long.
Veins are often dark reddish-brown and the blade may have reddish-brown irregular spots.
Cultivation
Needs a deep rich substrate and good light. Will withstand sub-tropical - tropical temperatures. A strong grower, too big for the average aquarium, the leavesLeaves
-History:Vocalist Arnar Gudjonsson was formerly the guitarist with Mower, and he was joined by Hallur Hallsson , Arnar Ólafsson , Bjarni Grímsson , and Andri Ásgrímsson . Late in 2001 they played with Emiliana Torrini and drew early praise from the New York Times...
soon growing out of the water. In the wild it grows in sticky mud along rivers. Rataj reports hybrids with E. grandiflorus and E. longiscapus which have mixed features. Supplement with iron and CO2 if possible. Seems to prefer soft to hard water.
Seems to bloom best in cooler water and in short-day conditions.
Apparently rarely found in the trade, the majority (if not all) specimens being offered being E. palaefolius.