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Weed Identification in Christmas Trees

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Wild Carrot (Queen Anne's lace) - Daucus carota L.
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Life cycle: Erect, fernlike biennial.

Leaves: First-year leaves originate from a basal rosette followed by an erect flowering stem with few leaves in the second year. Cotyledons are long, very narrow and thin. Leaves are doubly compound, fernlike and attached by long stalks inflated at the base. Damaged leaves will emit a carrotlike odor.

Stems:Erect, hollow, grooved, rough-hairy stems elongate during the second year, up to 5 feet tall with numerous branches.

Flowers and fruit: Numerous white flowers, often with a central purple flower, form terminal, 2- to 6-inch-wide, flat-topped clusters. Fruit have two egg-shaped sections; each section is yellow to grayish brown, flattened on one side and ridged with barbed spines.

Reproduction: Seeds.
Similar weeds: Common yarrow (Achillea millefolium L.) Differs by having a rhizomatous perennial nature, more finely dissected leaves that lack a carrotlike odor, and a shorter, bushier appearance at maturity.

Poison hemlock (Conium maculatum L.) Differs by having hairless, waxy, purple-spotted stems and dark, glossy green leaves that have a musty odor.
Wild carrot leaf Wild carrot flower Wild carrot seedling
Fernlike leaf of wild carrot. Wild carrot flower cluster. Wild carrot seedling.
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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02/07/08