Lobed Twinleaf; Notched Twinleaf
Annual forb to 25cm tall or sprawling. Leaves opposite each other, with two succulent leaflets (with an obvious junction between the basal section of the leaf and the leaflets), each 1-2cm long, 3-11mm wide, flat, hairless, with three lobes or teeth at the tip. Flowers yellow, with 4 petals, borne singly at the bases of the leaves. Fruiting body with 4 angles.
Description and photo (page 440), and line drawing of fruiting body (Fig. 53e page 440) in G.M. Cunningham, WE Mulham, PL Milthorpe and J H Leigh (1981 and later printings) Plants of Western New South Wales
PlantNET description with line drawings and photo of dried specimens: http://plantnet.rbgsyd.nsw.gov.au/cgi-bin/NSWfl.pl?page=nswfl&lvl=sp&name=Zygophyllum~crenatum