Introduced, warm-season, annual or perennial, prostrate to ascending herb. Stems are pubescent to woolly or hairless and to 25 cm tall. Leaves are opposite, oblong to more or less spathulate and 2–5 cm long; upper surface is sparsely hairy to hairless, lower surface is pubescent to woolly. Flowerheads are 1–4 cm long, 1–1.2 cm wide. Perianth segments are white, shining and papery. A native of America, it is a widespread weed.
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/73840284@N04">Harry Rose</a> from South West Rocks, Australia
CC BY 2.0
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/macleaygrassman/14440160038/">Gomphrena celosioides flowerhead6</a>