Pimelea spicata is a slender upright or decumbent shrub to 50 cm (20 in) high with smooth stems.

Flowering occurs mostly from August to December and the fruit is a small, green, narrowly egg-shaped nut about 2.5 mm (0.098 in) long.

[4][5] Pimelea spicata was first formally described in 1810 by Robert Brown and the description was published in Prodromus Florae Novae Hollandiae.

[8] This pimelea grows in grassland on shale soils in coastal locations from Landsdowne to Shellharbour and inland to Penrith.

[4][5] Invasive weeds which compete with the plant for resources include bridal creeper (Asparagus asparagoides), bitou bush (Chrysanthemoides monilifera), blackberry (Rubus fruticosus agg.