Echinodorus uruguayensis
Encyclopedia
In Rataj's taxonomy E. uruguayensis is in Section Uruguayensii, Subgenus Echinodorus
In the aquarium
trade E. horemanii seems often to be really E. uruguayensis.
(5)-30-50 cm long, blades ribbon-shaped, green or darkly red-brown having undulate margins, (9)-20-30 cm long x 1 - 2 - (3) cm wide, trimmed with distinct pellucid lines. Emersed leaves
rare, 20 - 50 cm long, petioles longer than the blades. Blades regularly ovate or oval, on the tip blunt, 7.5 - 13 cm long x 2 - 4.5 cm wide, having distinct pellucid lines.
Srem upright or deflexed, (20)-30-(45) cm long, proliferous. Inflorescence
racemose, rarely branching in the lower whorl, having (2)-4-(6) whorls containing 6 -12 flowers each. Bracts lanceolate, usually shorter than the pedicels, shallowly connate, 1 - 1.5 cm long. Pedicels 1.5 - 2 - 3 cm long. Corolla white, 1 - 1.5 cm in diameter, stamens 18, achenes 1 - 1.5 mm long, having usually 3 glands in oblique row in the upper part of the body.
Distinct varieties are sold in the trade which may or may not be this plant. Young growth is often reddish in colour.
Often confused with E. maior.
It will bloom readily if grown emerse, but takes a while to form a new set of emerse leaves. This change from submerse to emerse growth is best done gradually.
Synonyms
E. subulatus Niederlein; E. martii var. uruguayensis (Arech.) Hauman; E. grandiflorusIn the aquarium
Aquarium
An aquarium is a vivarium consisting of at least one transparent side in which water-dwelling plants or animals are kept. Fishkeepers use aquaria to keep fish, invertebrates, amphibians, marine mammals, turtles, and aquatic plants...
trade E. horemanii seems often to be really E. uruguayensis.
Description
Submersed 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...
(5)-30-50 cm long, blades ribbon-shaped, green or darkly red-brown having undulate margins, (9)-20-30 cm long x 1 - 2 - (3) cm wide, trimmed with distinct pellucid lines. Emersed 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...
rare, 20 - 50 cm long, petioles longer than the blades. Blades regularly ovate or oval, on the tip blunt, 7.5 - 13 cm long x 2 - 4.5 cm wide, having distinct pellucid lines.
Srem upright or deflexed, (20)-30-(45) cm long, proliferous. Inflorescence
Inflorescence
An inflorescence is a group or cluster of flowers arranged on a stem that is composed of a main branch or a complicated arrangement of branches. Strictly, it is the part of the shoot of seed plants where flowers are formed and which is accordingly modified...
racemose, rarely branching in the lower whorl, having (2)-4-(6) whorls containing 6 -12 flowers each. Bracts lanceolate, usually shorter than the pedicels, shallowly connate, 1 - 1.5 cm long. Pedicels 1.5 - 2 - 3 cm long. Corolla white, 1 - 1.5 cm in diameter, stamens 18, achenes 1 - 1.5 mm long, having usually 3 glands in oblique row in the upper part of the body.
Distinct varieties are sold in the trade which may or may not be this plant. Young growth is often reddish in colour.
Often confused with E. maior.
Cultivation
Not often available, which is a pity as it is well suited to submerse growth. Can be propagated by division, though ittends to grow slowly. Not fussy as to water conditions and will grow in sub-tropical temperatures, in which it seems to bloom more readily. Likes a nutriment rich substrate and good light levels. Additional CO2 helps growth.It will bloom readily if grown emerse, but takes a while to form a new set of emerse leaves. This change from submerse to emerse growth is best done gradually.