Schiedea membranacea is a rare species of flowering plant in the family Caryophyllaceae known by the common name valley schiedea.

[1] Plants in a population known from Kauai are actually members of other species.

It is a federally listed endangered species of the United States.

This plant is a subshrub growing 30 centimeters to nearly 2 meters tall.

[2] Conservation efforts include propagation of new plants from tissue culture.