The bottom row shows the leaves and male and female flowers of waterhemp (left) and palmer amaranth (right).Smooth pigweed and redroot pigweed are difficult to differentiate from each other, especially when plants are young and actively growing.
Erect, branched plant reaching heights of 6 ft.Leaves are oval with a tapering point, occasionally tinted red.Despite similarities across species, there are traits/combinations of traits that can be used to distinguish among the pigweeds to.
Redroot pigweed is widely distributed.With little other vegetative competition, it can reach heights much greater.
Smooth pigweed flower heads (right) have many, slender branches.Redroot pigweed is a prolific seeder and is associated with late summer allergies.Redroot pigweed flower heads have short, stubby branches (left).
The dull green and wavy leaf margins of a 10 leaf seedling plant.It develops lateral shoots that allow it to form tall clumps.
Flowers are green with a pinkish tint.Weeds such as canada thistle, red root pigweed, and lamb's quarters have shown late flushes.The short compact finger like spikes of the mature seed head.
The leaves of redroot pigweed are ovate (wider in the middle), shiny and very thin.Densely clustered flowers appear on a spike at the tip of branches.
Last update images today Red Root Pigweed Cotyledon