Knowledgebase

Name my weed please. #930262

Asked May 01, 2026, 10:56 AM EDT

This weed seems to be spreading like crazy in our area.

Douglas County Oregon

Expert Response

Erodium moschatum is a species of flowering plant in the geranium family known by the common names musky stork's bill and whitestem filaree. This is a weedy annual or biennial herb which is native to much of Eurasia and North Africa but can be found on most continents where it is an introduced species. The young plant starts with a flat rosette of compound leaves, each leaf up to 15 centimeters long with many oval-shaped highly lobed and toothed leaflets along a central vein which is hairy, white, and stemlike. The plant grows to a maximum of about half a meter in height with plentiful fuzzy green foliage. The small flowers have five sepals behind five purple or lavender petals, each petal just over a centimeter long. The filaree fruit has a small, glandular body with a long green style up to 4 centimeters in length. Remove young plants in fall or early spring when roots are shallow. If mature, use a tool to remove the entire taproot, as it can resprout. Cultivate soil in spring and fall to destroy seedlings but minimize deep digging to avoid bringing up buried seeds. Apply a 2–3-inch layer of mulch in garden beds to prevent seed germination. Increase lawn density by mowing regularly (to prevent seeding), irrigating, and fertilizing to prevent bare spots. Use cardboard, followed by soil and new turf, to smother large infestations in landscapes.

Chris Rusch Replied May 01, 2026, 10:33 PM EDT

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