Weed Identification in Nurseries and Landscapes
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| Common groundsel - Senecio vulgaris L. | |||||||||
| Weed Identification in Nurseries and Landscapes > Common groundsel | |||||||||
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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. |
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