Syneilesis and Nymphoides are both what?
Syneilesis Syneilesis is a genus of East Asian plants in the groundsel tribe within the Asteraceae.
Nymphoides hydrophylla Nymphoides hydrophylla (crested floatingheart, white water snowflake, white snowflake ) is an aquatic plant of the family Menyanthaceae native to tropical Asia. It has cordate floating leaves that support a lax inflorescence of dainty white flowers with fringed petal margins. Its slim stem (spear) is edible, and is used as vegetable in Taiwan, mostly produced at Meinong District, Kaohsiung.