Common Name: redroot pigweed, carelessweedScientific Name: Amaranthus retroflexus L.Family Name: Amaranthaceae - Amaranth FamilyIdentification NotesLife Cycleintroduced annual, reproducing from seed Stemsupright, very hairy, branched Leavesalternate, ovate, sometimes purple below Flowers small, green flower; terminal panicles, compact, stiff, bristly