Common Name
Water Buttons, Button Weed
Family
Asteraceae
Notes
Introduced annual or perennial forb, mat-forming, to 60cm tall. Succulent stems. Leaves somewhat fleshy, alternating along the stems, with a sheathing or stem-clasping base. Leaves 1-8cm long, linear to flat, hairless, edges entire or toothed or lobed. Upper leaves smaller, entire. Flower heads yellow, with 0 petals, hemispherical, at the ends of the stems, on stalks 2-8cm long.
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 670
PlantNET description: http://plantnet.rbgsyd.nsw.gov.au/cgi-bin/NSWfl.pl?page=nswfl&lvl=sp&name=Cotula~coronopifolia