is a monotypic plant genus in the buckwheat family
containing the single species Systenotheca vortriedei
, which is known by the common name Vortriede's spineflower
. This wildflower is endemic
to California, where it is native to the Santa Lucia Mountains
of the central coast
. This is a small annual plant growing to a maximum of 15 centimeters in height, and easily identifiable with its red stems and foliage and white flowers. This is an uncommon plant in its small native range where it grows in serpentine soil
at some elevation.