Boronia thujona A.R.Penfold & M.B.Welch

Leaflets serrulate with distant serrations marked by a marginal oil gland, up to 30 mm long, thin, 9–15 per leaf. Flowers in loose axillary corymbose cymes. Petals deep pink. Style sometimes slightly dilated. Glabrous shrub 1–4 m high with a very strong odour. Woronora and Hornsby Plateaus; Blue Mts on King’s Tableland. Creek banks and damp shady situations. Ss. Fl. spring–summer