Sagittaria sagittifolia L.

In European and N. Asian specimens, E in Siberia to long. 105°, the petals are white with a distinct, purple or carmine, basal spot, the anthers are purple or carmine, the sepals are appressed or spreading after anthesis, and the basal lobes of the leaves are blunt at the extreme tip.The South & East Asian and Malaysian specimens are distinct by pure white petals, yellow anthers, sepals reflexed after anthesis, and basal lobes of the leaves ending in a very acute, needlelike tip.

It grows in tropical and subtropical places. It occurs in swamps and muddy places, growing in ponds and rice-fields. It grows in wetlands. It suits hardiness zones 7-12. In Yunnan.

The tubers or corms are cooked and eaten. The starch is used in dishes and for bread. The tender shoots near the root and stem is boiled well then eaten with oil and salt.

Plants are normally grown from pieces of the corm which have side buds. It can be grown from seeds.