Ruppia maritima flower

Pliocene

Rita Blanca Formation

Oldham County, TX USA.

32mm widgeon grass flower on 62mm slab.  Only one we have ever seen.

Ruppia is a genus of aquatic plants commonly known as widgeonweeds, widgeon grasses, or ditch grasses.  It dates back to the Eocene

R. maritima is commonly called the beaked tasselweed or widgeon grass.  It is found all over the world in brackish water environments.