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Nymphae tetragona is
a perennial found in ponds or swamps; the rhizomes are thick and
short. Leaves emerge in bundles with long petioles, broadly
elliptical, deeply cleft in heart shape at their bases, 10-20cm in
length, and float on the water. The petioles set single white
flowers on the tops, each approximately 5cm in diameter, open in the
daytime and close in the nighttime. The flowers are 8-15-petaled
with four sepals. Round sap fruit ripens in the water as the flowers
have gone. Bloom time. June-September. |
Wild plants in and around Shimane
島根とその周辺の野生植物
