Water spinach
Ipomoea aquatica
Semi-aquatic leafy vegetable with hollow stems, widely grown in Asia in wet or flooded fields.
Family
Convolvulaceae
Temperature
15-35°C (absolute 10-40°C)
Rainfall
2000-2500mm (absolute 700-4200mm)
Soil pH
5-7 (absolute 4.3-7.5)
Soil types
Wet, fertile soils; tolerates waterlogging