Broadleaf Weed – Venus’ Looking Glass

(Triodanis perfoliata)

Also commonly known as Round-leaved Triodanis or Clasping Bellwort, Venus’ Looking Glass is a winter or summer annual (and occasionally a perennial) broadleaf weed that is typically found in fields, sand prairies, lake borders, thin or bare lawns, and disturbed areas along railroads and roadsides where there is rocky or sandy soil. Triodanis perfoliata is found throughout much of the continental United States.

Identifying Venus’ Looking Glass -

Venus’ Looking Glass (or Clasping Bellwort) is identified by stems that are sparsely branched, rough and sometimes hairy on the lower portions. Its leaves are palmately veined, with heart-shaped bases that clasp the stem. Venus’ Looking Glass exudes a milky sap from its stems when they are broken or cut.

In bloom, Venus’ Looking Glass features Flowers in clusters of 1-3 in the leaf axils. The petals are long tubes that are deep purple to pale lavender in color. Reproduction is by seed.

Venus’ Looking Glass Control -

Proper cultural practices, such as proper mowing and watering, can help to prevent Venus’ Looking Glass by creating dense turf, which inhibits the weed’s ability to grow. Physical removal (i.e. “weed pulling”) can be effective, although you will run the risk of spreading the seeds to additional areas of your lawn.

Scotts LawnService uses a selective systemic weed control program to fight Venus’ Looking Glass in your lawn and landscaping, which ensures the weed control is moved throughout the weed, killing it completely root and all.

Scotts LawnService is the trusted industry leader for professional quality lawn care. Our exclusive lawn care products include premium grass seeds and professional-grade fertilizers; our lawn service teams consist of highly trained, industry-certified professionals. Contact a representative today for Venus’ Looking Glass control options available in your area and to learn how you can enjoy a lush, thicker lawn that only Scotts LawnService can deliver.