common groundsel plant

Common groundsel – Senecio vulgaris

Senecio vulgaris L.

Asteraceae (Aster family)

Life cycle

Summer or winter annual capable
of multiple generations per year.

Leaves

Alternate, sparsely hairy to smooth with variable leaf shape. Young leaf
margins may be smooth to slightly wavy; older leaves have deep, irregular lobes and
coarsely toothed margins. Lower leaves have short stalks; upper leaves are stalkless.

Stems

Smooth, erect and multiple-branched. Usually no taller than 12 inches.

Flowers and fruit

Numerous yellow, cylinder- to cone-shaped flower heads are produced in clusters at the stem ends. The seed is enclosed in a single-seeded, wind-disseminated fruit that forms in a white, approximately 0.5-inch-wide puffball collection.

Reproduction

Seeds.

Common groundsel plant
Common groundsel plant
Common groundsel flower head
Common groundsel flower head
Common groundsel mature seedhead
Common groundsel mature seedhead
Common groundsel seedhead
Common groundsel seedhead
Common groundsel seedling
Common groundsel seedling

Tags: annuals, msu plant & pest diagnostics, weed


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