Chenopodium murale, a non-native plant, is named for the shape of the leaf, which apparently resembles the shape of the foot of a goose. It also resembles Verbesina but the leaf margins have less regular dentition (teeth) and lack the fine hairs found on the upper surface of Verbesina. The largest Chenopodium murale leaves are also much smaller than most Verbesina leaves.
Chenopodium cotyledons are linear to lanceolate (lance-shaped) and broadest near the base. The first true leaves readily show the dentition (teeth) of mature Chenopodium leaves.
Chenopodium (below left), Ciclospermum (middle), and Amaranthus (right) all have long narrow cotyledons. Ciclospermum at this stage have an obvious raised central vein. Chenopodium and Amaranthus are difficult to discriminate until the first true leaves erupt, at which point the dentate (toothed) margins of Chenopodium are obvious.
Description: Annual herbs; stems erect or ascending, 3-10 dm long, usually many-branched, mealy pubescent especially on young parts, rarely densely so. Leaves variable, usually rhombic-ovate, 1.5-9 cm long, 0.8-5 (-7) cm wide, mealy pubescent at least on the lower surface, margins with 5-15 coarse, more or less irregular, ascending teeth on each side. Flowers in small, dense glomerules grouped into leafy, terminal and axillary, divaricately branched cymes up to ca. 5 cm long; calyx ca. 1 mm long, not completely enclosing the fruit at maturity, papillose and with a raised keel toward apex. Seed black, not especially shiny, horizontal, 1.2-1.5 mm in diameter, acutely keeled, the surface under high magnification marked with minute rounded pits.” (Wagner et al., 1999; p. 538).