Leucopogon strongylophyllus is an erect shrub, its young branchlets sometimes softly-hairy. Its leaves are crowded, sometimes erect, egg-shaped with the narrower end towards the base, or round, on a distinct petiiole. The leaves are prominently striated and sometimes have a minute, rigid point on the tip. The flowers are arranged singly or in pairs in leaf axils on a down-curved peduncle with minute bracts and broad bracteoles somewhat less than half as long as the sepals. The sepals are about long, and the petals white, about long, and joined at the base to form a tube with lobes longer than the petal tube.
