
Appearance
Umbels borne in dichasial cymes or in a compound umbel of dichasial cymes; subtended by tri-fid to simple, entire bracts, each umbel 20–45 mm diam., c. 100–200 flowered; peduncle 2.5–11 cm long, glabrous or sparsely hairy towards base; bracts 20–35, 4–7 mm long. Flowers bisexual. Petals 1.5–2.5 mm long, white. Ovary unilocular or 2-locular.Fruit broad ovate to semicircular, 2.5–4 mm long, brown; one or both mericarps maturing. Mericarps 2.1–3.0 mm wide. Carpophores entire, 1–2 mm long.
lowering: Flowers October–April

Distribution
Distribution and occurrence: Grows in disturbed or swampy areas; south from Tweed R. area.Australian NSW subdivisions: NC, CC, SC, NT, CT, ST, CWS, NWS
References:
Some text fragments are auto parsed from Wikipedia.
http://plantnet.rbgsyd.nsw.gov.au/cgi-bin/NSWfl.pl?page=nswfl&lvl=sp&name=Trachymene~composita