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Prostrate spurge - Chamaesyce humistrata (Engelm. ex Gray) Small
Weed Identification in Nurseries and Landscapes > Prostrate spurge
Prostrate spurge seedling
Prostrate spurge seedling.
Prostrate spurge fruit Prostrate spurge milky sap
Prostrate spurge fruit. Milky sap of prostrate spurge.

Similar weeds: Spotted spurge [Chamaesyce maculata (L.) Small] Differs by having stems that do not root at the nodes, narrow oval to oblong leaves, and ridged, not wrinkled, seeds.
Life cycle: Prostrate summer annual.

Leaves: Cotyledons are oval with maroon undersides and short petioles. Opposite, pale green, egg-shaped leaves with rounded tips have small, irregular teeth along the margins and short petioles. The upper leaf surface often has a maroon watermark.

Stems: Prostrate, densely hairy stems are highly branched from the base, forming circular mats up to 16 inches in diameter. Stems may root at the lower nodes and exude a milky sap when damaged.

Flowers and fruit: Inconspicuous flowers are formed in the leaf axils. Fruit are hairy, three-lobed capsules that contain three wrinkled, three-sided, pale brown seeds.

Reproduction: Seeds.
 
Prostrate spurge seedling
Prostrate spurge seedling.
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: 10/22/07