Layiadiscoidea is a rare species of flowering plant in the family Asteraceae known by the common name rayless tidytips, or rayless layia. Layia discoidea...
type of speciation has been found in several plant species pairs: Layiadiscoidea and L. glandulosa, Clarkia lingulata and C. biloba, and Stephanomeria...
Camissonia benitensis, the previously ranked strict serpentine endemic Layiadiscoidea also has several populations that occur on greywacke and chert outcrops...
including San Benito evening primrose (Camissonia benitensis), rayless layia (Layiadiscoidea), Guirado's goldenrod (Solidago guiradonis), and San Benito fritillary...