'' illustration from
Johannes Mildbraed's 1908 monograph on the Stylidiaceae. The genus is known to be closely related to the genus
Stylidium. Specifically, the
subgenus Centridium is the subgeneric taxonomy in the genus
Stylidium that appears to be most closely related to
Levenhookia and most suggests an ancestral relationship. Several species of
Stylidium have also been noted to mimic flower morphology of certain
Levenhookia species to utilize similar available pollinators. Specifically,
S. xanthopis mimics
L. leptantha and
S. ecorne mimics
L. pauciflora. Section
Estipitatae consists of
L. dubia,
L. leptantha, and
L. sonderi, which was considered by Mildbraed to be a
variety of
L. dubia. Section
Levenhookia consists of
L. pusilla and
L. pauciflora, though it could also contain
L. pulcherrima, which Carlquist described in 1969 and noted its close association to the other two species in section
Levenhookia but neglected to place it within a section. ==References==