Triphysaria eriantha is a species of flowering plant in the family Orobanchaceae, known by the common names johnny-tuck[1] and butter-and-eggs.

It is native to California and southwestern Oregon, where it grows in many types of habitats including chaparral, becoming quite common in some areas.

Triphysaria eriantha is an annual herb producing a hairy purple stem up to about 35 centimeters in maximum height.

Its green or purplish leaves are up to 5 centimeters long and are divided into a few narrow, pointed lobes.

eriantha has white and bright yellow pouches, and the less common coastal subsp.