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Weed Identification in Nurseries and Landscapes

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Black medic - Medicago lupulina L.
Weed Identification in Nurseries and Landscapes > Black medic
Black medic fruit Black medic stipule
Black medic fruit. Black medic stipule.
Black medic plant
Black medic plant.
Life cycle: Prostrate, trailing summer annual.

Stems: Prostrate, trailing to ascending stems are wiry, usually hairy, multibranched from the base and up to 2 feet long.

Leaves: Alternate, compound – with three oval to egg-shaped leaflets – hairless to sparsely hairy, shallowly toothed along the upper half and tipped with a small point. The central leaflet is found on a definite stalk; the two lateral leaflets are nearly stalkless. A pair of stipules is present at the base of each petiole.

Flowers and fruit: Numerous, very small, yellow flowers are formed in dense, mostly globe-shaped, cloverlike clusters. Fruit are clusters of black, coiled, kidney- to bean-shaped, one-seeded pods.
Black medic flower Black medic leaf
Black medic flower. Black medic leaf.
The MSU IPM Program maintains this site as an access point to pest management information at MSU. The IPM Program is administered within the Department of Entomology, fueled by research from the Michigan Agricultural Experiment Station, delivered to citizens through MSU Extension, and proud to be a part of Project GREEEN.
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Updated: 10/12/07