Abstract (Z)-Î²-ocimene has been found to occur in amounts of 85% in foliage of Homoranthus montanus Craven and S. R. Jones and 69â71% in H. flavescens Cunn. ex. Schauer. (E)-Î²-ocimene also occurred in amounts of 5â9% and 2â5% respectively. The oil yield in both cases was 0.3â0.5% based on fresh leaves.