Annual forb, sprawling or to 15cm tall. Leaves in clusters on the stems, in opposite pairs, the bases of each pair of leaves joined and encircling the stem. Leaves 0.5-1.2cm long, linear, hairless, with stiff, somewhat sharp, straight points. Flowers tiny (less than 3mm across), with 5 green 'petals', in few flowered clusters at the bases of the leaves and on the ends of the stems.
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 page 304
PlantNet description with line drawing and photoof dried plants: http://plantnet.rbgsyd.nsw.gov.au/cgi-bin/NSWfl.pl?page=nswfl&lvl=sp&name=Scleranthus~minusculus
Dried plant. © copyright of the Board of Trustees of the Royal Botanic Gardens, Kew. Plant from the Wimmera, Vic, collected 1848.