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How to Manage Pests

Identification: Weed Photo Gallery

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Pineappleweed

Scientific name: Chamomilla suaveolens (Sunflower Family: Asteraceae)

Life stages of Pineapple-weed top picture bottom picture

Click on image to enlarge
DESCRIPTION:
Piineappleweed is a very common summer annual broadleaf weed. Mature pineapple-weed is 3 to 12 inches (7.5 - 30 cm) high. Seedlings have bright green,
narrow cotyledons (seed leaves) that are thick and fleshy. The first leaf pair are hairless, opposite one another on the stem, and range from smooth-margined to lobed. Early leaves are finely divided into narrow, fingerlike lobes. Subsequent leaves alternate along the stem, are deeply lobed to fully subdivided, and form a rosette. The small, yellowish green flowers at the ends of stems do not have showy petals. The foliage of pineapple-weed is finely divided and gives off a strong, sweet smell when crushed. Plants look similar to Mayweed chamomile, but leaves are less finely divided and do not appear to clasp the stem. Also Mayweed chamomile's odor is less pleasant.

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/pineapple_weed.html revised: November 17, 2008. Contact webmaster.