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| Pineapple weed - Matricaria discoidea DC. | |||||||||||||
| Weed Identification in Nurseries and Landscapes > Pineapple weed | |||||||||||||
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Life cycle: Pineapple-scented, fernlike winter or summer annual. Reproduction: Seeds. Flowers and fruit: Numerous greenish yellow flowers in a globe- to cone-shaped head are formed on the ends of branches. Light green bracts surround the base of the flower head. Damaged flowers emit a sweet pineapple odor. The seed is enclosed in a single-seeded, oblong and ribbed, light brown fruit. Leaves: Alternate, very finely dissected, feathery or fernlike leaves are hairless and 0.5 to 2 inches long. Leaves initially develop from a dense basal rosette. Damaged leaves emit a sweet pineapple odor. Stems: Short, hairless, erect or spreading stems with multiple branching from the base, up to 16 inches in height. |
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