As far as I can tell, there is only one Pink Jacaranda (Stereospermum kunthianum) in the park.
Each spring I keep a look out for it tucked away – inconspicuously for most of the rest of the year – in a small dip just as you enter through the east gate.
The Pink Jacaranda is not just a pretty face. According to Wikipedia it is traditionally used for a number of medical ailments, including pharyngeal affections, leprosy, subcutaneous parasitic infections and other skin afflictions, venereal diseases, diarrhoea, dysentery, and as antiemetics. However, WebMD cautions that there is no real evidence to support any claims of its efficacy for these condidtions.
I'll Give You a Letter For That 