water lettuce - thai called "dok jok" is a small water weed. live together as a group floating on the water surface.

abstract aquatic background beautiful beauty botany bright cabbage close closeup color decoration detail dew duckweed environment field float floating flower foliage fresh garden green growth lake leaf leaves lettuce natural nature nobody organic outdoor pattern pistia plant pond salvinia season space spring stratiotes summer surface texture tropical up water weed thai people call dok jok small live together group trunk parallel has plump appearance there many roots