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Weed Identification in Christmas Trees

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Tumble pigweed - Amaranthus albus L.
Home > tumble pigweed
Tumble pigweed leaf.
Tumble pigweed leaf.
Tumble pigweed stem. Tumble pigweed stem.
Whitish stems of tumble pigweed. Tumble pigweed seedling.
TUmble pigweed foliage and flowers.
Tumble pigweed foliage and flowers.
Life cycle: Bushy-branched summer annual.

Leaves: Alternate, oval- to spatula-shaped, light green leaves have wavy margins and notched leaf tips.

Stems: Mostly erect and usually hairless, pale green to whitish stems with multiple branches create a bushy appearance. Stems, up to 4 feet tall, break off at the soil surface when mature and tumble with the wind.

Reproduction: Seeds.

Flowers and fruit: Small, greenish flowers are found in dense clusters in the leaf axils. Flowers have long bracts two to four times the length of the sepals and yield small, round, shiny black seeds.
Tumble pigweed flowers.
Tumble pigweed flowers.
The MSU IPM Program maintains this site as an access point to pest management information at MSU. The IPM Program is administered within the Department of Entomology, fueled by research from the Michigan Agricultural Experiment Station, delivered to citizens through MSU Extension, and proud to be a part of Project GREEEN.
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02/08/08