Amaranthaceae

Perianth segments scarious; filaments often connate at the base Amaranthaceae
Leaves alternate
Erect or prostrate herbs. Fruit dry, membranous Amaranthus
Bracts with short points or none, shorter or not much longer than the perianth. Perianth segments usually 3, if 5 then fruit with 3 swollen styles. Fruit indehiscent or bursting irregularly.
Flowers in axillary clusters.
Perianth segments 5, 2–3 mm long; spathulate, mucronate. Styles 3, swollen. Fruit wrinkled and swollen below, slightly longer than perianth. Uncommon. Introd. from NW NSW. Boggabri Weed Amaranthus mitchelli
Perianth segments 3, 5 mm long, spathulate, acuminate or emarginate. Bracts and bracteoles shorter than the perianth Fruit oblong, much longer than the perianth, wrinkled, indehiscent, with 2–3 prominent styles