Plants in the genus Lechenaultia are glabrous shrubs or herbs with needle-shaped leaves, more or less sessile flowers with five sepals and five blue, white, or yellow and red petals in two unequal lobes, the fruit an elongated capsule.

[2][3][4] The genus Lechenaultia was first formally described in 1810 by Robert Brown in Prodromus Florae Novae Hollandiae et Insulae Van Diemen.

[5][6] The genus name honours Jean Baptiste Leschenault de la Tour, the botanist attached to the Baudin expedition to Australia.

Lechenaultia biloba grows in forests, and inland species occur in open grassland or woodland.

[10] The following is a list of Lechenaultia species accepted by the Australian Plant Census as at January 2022:[11] In 2021, Russell Lindsay Barrett and Richard W. Jobson described L. peregrina, a new species from northern Australia, New Guinea and the Moluccas, but as of January 2022, the name has not yet been accepted by the Australian Plant Census.