Meaning of name: Acacia is from the Greek word acis, meaning a pointed instrument. Sessilis is a Latin word, meaning fit for sitting on, in botanical terms it means a flower or leaf growing direct from the stem without a stalk.
Distribution: Occurs from Geraldton to Yarloop.
Remarks: A shrub to 1 metre tall. The yellow flowers are produced from July to October.
References: Western Australian Plant Names and their Meanings, a Glossary. FA Sharp. 1996.
Flora of the Perth Region. NG Marchant, JR Wheeler, BL Rye, EM Bennett, NS Lander, TD Macfarlane. 1987.