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How to Manage Pests

Identification: Weed Photo Gallery

Dandelion

Scientific name: Taraxacum officinale (Family Asteraceae)

Life stages of Dandelion top picture bottom left picture bottom right picture

Click on image to enlarge

DESCRIPTION:
Dandelion is a widely distributed perennial weed. The mature plant arises from a strong, deep taproot that exudes a milky substance when cut. There is no visible stem. Leaves are sparsely hairy or without hairs, have deeply serrated margins, and are clustered in a rosette at the base of the plant. Dandelion can reproduce from seed almost year-round or it can regrow from its taproot. Bright yellow flower heads, 1 to 2 inches (2.5 - 5 cm) across, consist of petal-like ray flowers and are borne singly on the tip of a hollow stalk, 3 to 12 inches (7.5 - 30 cm) long. Seeds are enclosed singly within fruiting bodies and are attached to a long slender stalk that terminates in a parachute-like structure called a pappus. Seeds are transported in the wind. The bristles on the seeds can clog cultivation equipment.

See UC IPM's Dandelions Pest Note for more information.

Broadleaf ID illustration.


Statewide IPM Program, Agriculture and Natural Resources, University of California
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For noncommercial purposes only, any Web site may link directly to this page. FOR ALL OTHER USES or more information, read Legal Notices. Unfortunately, we cannot provide individual solutions to specific pest problems. See How to manage pests, or in the U.S., contact your local Cooperative Extension office for assistance. /PMG/WEEDS/dandelion.html revised: March 11, 2008. Contact webmaster.