Goose Grass, Cleavers
Introduced annual forb, sprawling, scrambling or twining, stems to 2m long. Back-pointing prickles on the stems, hooked hairs on the leaves. Leaves in whorls of 6-9, 1-8cm long, 2-10mm wide, flat, bristly, margins bristly hairy and slightly curved down, with pointed tips. Flowers small (less than 3mm across), white, with a very short tube and 4 'petals', in open clusters of 1-7 on stalks originating at the bases of the leaves or at the ends of the stems. Fruiting body densely covered with hooked hairs.
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 623
PlantNET description: http://plantnet.rbgsyd.nsw.gov.au/cgi-bin/NSWfl.pl?page=nswfl&lvl=sp&name=Galium~aparine
Weeds of Australia Biosecurity Queensland description: http://keyserver.lucidcentral.org/weeds/data/03030800-0b07-490a-8d04-0605030c0f01/media/Html/Galium_aparine.htm