Shrubby Peppercress, Slender Peppercress
Shrub to 80cm tall. Leaves succulent, clustered, to 5cm long, about 1mm wide, linear to narrow cylindrical, hairless. Flowers yellow to white, with 4 petals, in short clusters at the tops 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 327
PlantNET description with line drawings of fruiting bodies: http://plantnet.rbgsyd.nsw.gov.au/cgi-bin/NSWfl.pl?page=nswfl&lvl=sp&name=Lepidium~leptopetalum
Flowering stem. Australian Plant Image Index, photographer Joe McAuliffe, Murray Sunset National Park, Vic