Ұзын сабақты эхинодорус – су өсімдігінің сипаттамасы

Species of aquatic plant
speciesbox
| image = Echinodorus longiscapus. jpg
| genus = Echinodorus
| species = longiscapus
| authority = Archavaleta
| synonyms = *Echinodorus grandiflorus var. longiscapus (Arechav.) Hauman
Echinodorus sellowianus Buchenau in H. G. A. Engler
Echinodorus sellowianus var. major Buchenau in H. G. A. Engler
Echinodorus sellowianus var. minor Buchenau in H. G. A. Engler
Echinodorus sellowianus var. longiscapus (Arechav.) Buchenau in H. G. A. Engler
Echinodorus longiscapus var. major Herter
Echinodorus longiscapus var. minor (Buchenau) Tronc. Echinodorus aschersonianus var. nulliglandulosus Rataj
| synonyms ref = It is cultivated as a pond or aquarium plant.

Leaves long petioled, petioles 1.5 3 x longer than the blades. Blades oval, ovate or cordate, at the tip obtuse or shortly acuminate, at the base lobate or abrupt, 9 – 11 cm long x 7 – 8 cm wide, in the terrestrial forms often only 3 cm long x 2 cm wide. Submersed blades oval or ovate, often nearly rounded. Blades trimmed with pellucid lines to 2 mm long. Stem erect, longer than the leaves, glabrous or rarely scabrous, 30 – 80 cm long. Inflorescence racemose having 3 9 whorls containing 6 12 flowers each, proliferous. Bracts as long as the pedicels, or hardly longer, to 1.5 cm long, having 9 11 ribs and membraneous margins. Pedicels usually 1 (2.5) cm long, sepals 5 – 6 mm long having 16 20 undistinct ribs, petals white, 1.7 – 2 cm long, corolla 2.5 – 4 cm in diameter. Stamens 20 25, anthers as long as the filaments, pistils numerous. Aggregate fruit globular or ovate, 5 – 7 mm in diameter. Achenes 2 2.3 mm long x 0.9 – 1 mm wide having usually 4 lateral ribs and (1) 3 glands placed in a row in the upper half of the body. Beak erect or bent, 0.5 mm long.

Propagated by division or adventitious plantlets. Seeds germinate freely. Easy to cultivate and seems to withstand a wide range of water conditions and temperatures.