Annual forb becoming woody at the base, to 50cm tall. Leaves alternating up the stems, 0.3-2.5cm long, 0.75-4mm wide, linear to flat, with scattered hairs, often becoming hairless. Flowers have a strong sweet aroma around sunset and sunrise. Flowers greenish or greenish yellow to white, tubular, with 4 lobes, in dense spherical to cylindrical clusters at the tops of the stems. Rare Vic (ssp. simplex).
Pimelea simplex ssp. simplex: Flower stalks to 16.5mm long, flower clusters remaining condensed or elongating to 10mm long at maturity. Slender plants with stems red at the base.
Pimelea simplex ssp. continua: Flower stalks to 35mm long, flower clusters elongating, usually 10-18mm long at maturity. Sturdy plants with stems green or brown at the base.
Differs from Pimelea trichostachya in that the flower clusters are 1-1.8cm long.
Description and photo in G.M. Cunningham, WE Mulham, PL Milthorpe and J H Leigh (1981 and later printings) Plants of Western New South Wales pages 507-508