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How to Manage Pests

Identification: Weed Photo Gallery

Mayweed chamomile (Sunflower Family: Asteraceae)

Scientific name: Anthemis cotula

Life stages of Mayweed chamomile top picture bottom left picture bottom right picture

Click on image to enlarge

DESCRIPTION:
Mayweed chamomile, often called dog fennel, is an annual bushy broadleaf plant that germinates in early spring. Common throughout California, it is adaptable to many conditions. Cotyledons (seed leaves) are very small and oval; they dry up rapidly and are seldom seen. First true leaves are deeply divided and pointed. The mature plant is 6 inches to 3 feet (15 - 90 cm) tall. Flower heads are white with yellow centers. Plants look similar to pineapple-weed, but leaves are more finely divided and appear to clasp the stem. Pineapple-weed smells like pineapple whereas mayweed's odor is less pleasant.

Broadleaf ID illustration.


Statewide IPM Program, Agriculture and Natural Resources, University of California
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