Scientific NameAmaranthus hybridus
Other Common Names:
Synonyms (former Scientific Names):
This erect summer annual flowers from June through October.
The alternate leaves are oval to egg shaped. The leaves are green on the upper surface and light green to magenta on the lower surface. The stems are densely hairy with short hairs.
This plant can be distinguished from other pigweeds by it's smaller, less bristly, limp flower spikes.
Flower Seed Head
The small greenish flowers occur in terminal spikes. The male and female flowers occur in different places, the males on the terminal spikes, and the females in smaller spikes of flowers at the leaf axils.
The glossy black seeds each form inside a 2 mm long utricle that splits open at maturity.
This plant can be found in pastures, along roadsides, and other disturbed soils.
upright and nonwoody
Thorns or Spines
Dominant Flower Color
shorter than leaf
Stem Cross Section
round or oval