Samolus junceus in the family Primulaceae is a species of water pimpernel native to Western Australia.

[2][3] Samolus junceus is an erect or straggling, perennial herb, which grows from 15 cm to 120 cm high, and is almost leafless.

Its flowers are white/pink, and may be seen from September to December or January to April.

It grows in wet places on sandy, peaty and clayey soils.

[2] The species was first described by Robert Brown in 1810.