Chenopodium L.
Stamens 4–5 Chenopodium
Plants decumbent or with trailing stems
Leaves green on both surfaces or slightly mealy underneath
Leaves coarsely sinuately lobed, 1–4 cm long, green on both surfaces but with glandular hairs, oblong or ovate in outline. Flowers in short axillary clusters. Perianth less than 1 mm long. Annual, decumbent herbs
Perianth segments keeled, pubescent, dorsally broadening towards the apex and thus triangular in outline. Coast, Blue Mts, Hornsby Plateau. Weed of gardens and waste places. Fl. chiefly summer. Green Crumbweed Chenopodium carinatum
Perianth segments concave but not keeled, with a few scattered hairs, curved in outline. Widespread. Weed of gardens, waste places, forests and woodlands. Fl. chiefly summer. Small Crumbweed Chenopodium pumilio