Amaranthus L.
Erect or prostrate herbs. Fruit dry, membranous Amaranthus
Bracts with long prominent or rigid points, usually exceeding the styles. Fruit circumsciss.
Bracts 10–15 mm long, spinescent, subtending the inflorescence branches. Bracteoles spinescent. Leaves ovate to lanceolate, 15–25 mm long occasionally more, paler and strongly reticulate underneath. Perianth segments 5. Coast. Weed. Hornsby Plateau. Introd. from trop. regions. Needle Burr Amaranthus spinosus
Bracts and bracteoles spinescent or not, less than 10 mm long