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Weed Identification in Nurseries and Landscapes

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Liverworts
Weed Identification in Nurseries and Landscapes > Liverworts
Life cycle: Mat-forming, annual spore-producing plants.

General description: Prostrate and spreading plants that often grow together to form thick mats on the surface of excessively moist soils. The foliage is not obviously differentiated into true leaves, stems or roots. Plants have rootlike rhizoids, which are not true roots but have similar functions. Small, round to crescent-shaped cups are formed on the foliage. These cups produce budlike structures that are dispersed by water to form new plants. Reproduction also occurs by spores released from palm-treelike structures. No true flowers or fruit are produced.

Foliage: Thick, dull green, ribbonlike foliage with lobed to forked margins.

Reproduction: Vegetatively and by spores.
Liverwort on a soil surface.
Liverwort on a soil surface.
Liverwort spore stalks. Liverwort foliage. Liverwort foliage with cups.
Liverwort spore stalks. Liverwort foliage. Liverwort foliage with cups.

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: 10/18/07