 "D. tenuifolia" is a small shrub, to 1 metre, it produces orange-yellow and red pea-flowers

It is found around Sydney, on the Cumberland Plain from Windsor to Penrith east to Deans Park.Other populations in western Sydney are recorded from Voyager Point and Kemps Creek, Ludenham, South Maroota.Other populations are known from the Bulga Mountains, Kurrajong Heights and Woodford in the Lower Blue Mountains.