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Black medic: Medicago lupulina

Black medic is an annual, biennial or short-lived perennial. A legume, it is closely related to alfalfa. It is most often found in lawns having low fertility. Often called Japanese clover, this plant has small yellow flowers and a deep taproot. It can be pulled from moist soil without difficulty.

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Black Medic Flower

Keeping your lawn healthy and dense with proper watering, mowing,  and fertilization will discourage invasion by black medic.

Control

Triclopyr + 2,4-D combination herbicides or other 2,4-D combination herbicides are more effective than 2,4-D alone.

Photograph courtesy of Judy Sedbrook.

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Date last revised: 01/05/2010