Alisma plantago-aquatica var. orientale("Sajiomodaka")
Japanese name: サジオモダカ（匙面高） Scientific name:Alisma plantago-aquatica var. orientale
[Overview]
An emergent perennial up to 80 cm tall, growing in shallow water such as rice paddies and ponds.
It has tubers.
The leaves are basal and are only emergent leaves, though rarely it produces linear, stalkless submerged leaves.
The emergent leaves are spoon-shaped, 5–20 cm long and 3–10 cm wide, with long petioles.
The boundary between leaf blade and petiole is distinct.
The flowers are usually borne in whorls of 3 at the nodes of the flower stalk, forming a panicle overall.
The flowers are white with 3 petals, often tinged with pale pink.
The fruit is an achene.
[Uses]
The tubers are used medicinally.
[Cultivation]
Propagate from seed.
Use heavy soil such as Arakida soil and plant in a sunny place.
Keep the roots always submerged, with a water depth of at most about 10 cm.
From spring to autumn, bury oil cake in the soil as fertilizer.
There are no particular pests or diseases.
