See text Roycea is a genus of plants formerly in the family Chenopodiaceae, and now in the Amaranthaceae.

The genus was first described in 1948 by Charles Austin Gardner,[1] and the genus name honours Robert Dunlop Royce (a helper at the Perth Herbarium).

[2] The entire genus is endemic to Western Australia.

[3] There are no synonyms.

[1][4] (listed by both Plants of the World online,[4] and FloraBase.