Prostrate pigweed
August 10, 2015
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EmailAmaranthus blitoides S. Wats.
Life cycle
Prostrate, mat-forming summer annual.
Leaves
Alternate and pale green to shiny, dark green leaves are oblong, oval to egg-shaped with pointed, rounded to slightly indented leaf tips. Leaf margins are smooth and usually whitish. Leaves are numerous at the stem ends.
Prostrate pigweed seedling.
Stems
Prostrate and nearly smooth, light green to reddish stems form thick, circular mats. Stems may be 1 to 3 feet long and mostly erect at the tip.
Prostrate stem and shiny green foliage of prostrate pigweed.
Flowers and fruit
Small, greenish flowers are found in dense clusters in the leaf axils. Flowers have bracts as long as the sepals and yield small, round, shiny black seeds.
Prostrate pigweed foliage and flower clusters.
Reproduction
Seeds.
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