OTHER NAMES: Redroot, green amaranth, rough
pigweed, green pigweed. HABITAT: Cultivated fields,
gardens, roadsides, waste places. Most abundant on rich soils.
DESCRIPTION: A course, erect annual, 2 to 3 feet tall.
Lower stems are often red or red-striped, with color continuing down the taproot.
Leaves alternate, stalked, dull green, ovate, rough 3 to 4 inches long. Flowers are
numerous, small, green, tightly arranged in large, branched, spike-like, terminal
clusters. Flower clusters are full of stiff, spine-like scales.
SEEDS: Jet black, glossy, somewhat flattened.
CULTURAL
CONTROL PRACTICES:
Infested fields should be tilled shallowly in the fall or early
spring to place the pigweed seed in a position for germination. |