The common Hovea is a perennial short stemmed woody shrub 10 centimetres to 70 centimetres (28 in) tall. It is native to south-west Western Australia. The foliage has needle-like green leaves. The flowers are blue or purple (or very rarely white) and appear between May and November. Species of Hovea are the food plant for the caterpillar.
Meaning of name: Hovea honours Anton Pantaleon Hove, collector of plants for Kew on the West African coast, in the Crimea and India. Trisperma is from the Greek words treis, meaning three, and sperma, meaning seed. It refers to the 3-celled ovary, in contrast with the more usual 2- or 4-celled ovaries in this genus.