Echinodorus subalatus
Encyclopedia
In Rataj's taxonomy E. subalatus is in Section Palaefolii, Subgenus Echinodorus
with canaliculate petioles, blades lanceolate, narrowly to broadly ovate, sharp on the tip, decumbent or rarely abrupt on the base, 18 – 24 cm long x 2 – 9 cm wide, with terrestrial forms usually only 10 x 2 cm having 5 - 7 veins and distinct pellucid lines.
Stem below cylindrical, between whorls triangular, often alate, 35 – 120 cm long. Inflorescence
racemose or paniculate having 4 - 15 whorls. Bracts on base connate, longer than the pedicels (up to 3.5 cm). Pedicels 0.5 – 2 cm long. Sepals 4 – 6 mm long, petals about twice as long, the diameter of the corolla 1.2 - 1.5 cm. Usually 12 stamens, achenes 2 x 1.5 mm with one, rarely 2 glands separated by a rib. Stylar beak bent back - reaching usually 1/4 of the body.
Vegetatively resembles E. andrieuxii, nut differs by having distinct pellucid lines, a usually paniculate infloresence and by achenes with beaks that are at most 1/3 as long as the body.
Synonyms
Alisma subalatum Mart. including majus, medium and minus; E, rubonervis Hort.; E. rangeri Hort.Description
LeavesLeaves
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with canaliculate petioles, blades lanceolate, narrowly to broadly ovate, sharp on the tip, decumbent or rarely abrupt on the base, 18 – 24 cm long x 2 – 9 cm wide, with terrestrial forms usually only 10 x 2 cm having 5 - 7 veins and distinct pellucid lines.
Stem below cylindrical, between whorls triangular, often alate, 35 – 120 cm long. 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 or paniculate having 4 - 15 whorls. Bracts on base connate, longer than the pedicels (up to 3.5 cm). Pedicels 0.5 – 2 cm long. Sepals 4 – 6 mm long, petals about twice as long, the diameter of the corolla 1.2 - 1.5 cm. Usually 12 stamens, achenes 2 x 1.5 mm with one, rarely 2 glands separated by a rib. Stylar beak bent back - reaching usually 1/4 of the body.
Vegetatively resembles E. andrieuxii, nut differs by having distinct pellucid lines, a usually paniculate infloresence and by achenes with beaks that are at most 1/3 as long as the body.