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.[2][3][4]
Cultivationedit
Propagated by division or adventitious plantlets. Seeds germinate freely. Easy to cultivate and seems to withstand a wide range of water conditions and temperatures.[citation needed]
Referencesedit
^ ab"World Checklist of Selected Plant Families: Royal Botanic Gardens, Kew". apps.kew.org. Retrieved 2017-01-27.
^Arechavaleta y Balpardo, José. 1903. Anales del Museo Nacional de Montevideo 4(1): 67–68, t. 2
^Rataj, K. 1969. Echinodorus longiscapus Arech. y su dispersión en la América latina. Darwiniana 15:183–188.
^Caccavari, M. 1983. Boletín de la Sociedad Argentina de Botánica 22(1–4): 247, figs. 1–2.
External linksedit
April 14, 2024
echinodorus, longiscapus, perennial, aquatic, plant, alismataceae, native, south, america, brazil, paraguay, uruguay, argentina, cultivated, pond, aquarium, plant, scientific, classificationkingdom, plantaeclade, tracheophytesclade, angiospermsclade, monocotso. Echinodorus longiscapus is a perennial aquatic plant of the Alismataceae native to South America Brazil Paraguay Uruguay and Argentina 1 It is cultivated as a pond or aquarium plant Echinodorus longiscapusScientific classificationKingdom PlantaeClade TracheophytesClade AngiospermsClade MonocotsOrder AlismatalesFamily AlismataceaeGenus EchinodorusSpecies E longiscapusBinomial nameEchinodorus longiscapusArchavaletaSynonyms 1 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 Contents 1 Description 2 Cultivation 3 References 4 External linksDescription editLeaves 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 2 3 4 Cultivation editPropagated by division or adventitious plantlets Seeds germinate freely Easy to cultivate and seems to withstand a wide range of water conditions and temperatures citation needed References edit a b World Checklist of Selected Plant Families Royal Botanic Gardens Kew apps kew org Retrieved 2017 01 27 Arechavaleta y Balpardo Jose 1903 Anales del Museo Nacional de Montevideo 4 1 67 68 t 2 Rataj K 1969 Echinodorus longiscapus Arech y su dispersion en la America latina Darwiniana 15 183 188 Caccavari M 1983 Boletin de la Sociedad Argentina de Botanica 22 1 4 247 figs 1 2 External links editSouth American distribution Retrieved from https en wikipedia org w index php title Echinodorus longiscapus amp oldid 1180799836, wikipedia, wiki, book, books, library,
