Isoetes australis

Isoetes australis is quillwort (in the family, Isoetaceae) and was first described in 1943 by Samuel Williams.^[1][2]

Isoetes australis
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Lycophytes
Class:	Lycopodiopsida
Order:	Isoetales
Family:	Isoetaceae
Genus:	Isoetes
Species:	I. australis
Binomial name
Isoetes australis S.Williams[1]

It is endemic to south-west Western Australia,^[3] where it is found in ephemeral pools on granite outcrops.^[4] The plants begin to grow during winter when the pools fill with water and die back completely when the water dries up (late spring / summer).^[4]