Arrowhead
Sagittaria sagittifolia
Aquatic plant cultivated for its starchy edible corms, especially in China.
Family
Alismataceae
Temperature
16-24°C (absolute 12-28°C)
Rainfall
900-1200mm (absolute 600-1500mm)
Soil pH
6-7.5 (absolute 5.5-8.2)
Soil types
Waterlogged mud or paddy soils.