Cleaver (geology), in descriptive geology, is a ridge of rock that separates a unified flow of glacial ice from its uphill side into two glaciers flanking, and flowing parallel to, the ridge.
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Cleavers — Galium aparine — has been the subject of a great deal of research, partly because of the significance of the plant as an arableweed, but also because of the interesting biology and ecology of the species.
Cleaversseeds in the soil decay relatively quickly, lasting only 3 to 4 years, so the successful production of seeds each year is of increased importance.
Cleavers, except in extreme conditions, appear not to influence crop growth until at least the end of April.
Cleavers is an annual plant found in moist or grassy places and along river banks and fences in Canada, the eastern half of the U.S., and the Pacific Coast.
Cleavers can be used for lymphatic problems, such as lymphatic congestion and swollen lymph glands, congestion of the breasts, and is said to have anti-tumor activity, particularly when in the skin or breasts, and the lymphatic system.
A valuable diuretic, cleavers is often taken for skin diseases such as seborrhea, eczema, and psoriasis; for swollen lymph glands and as a general detoxifying agent in serious illnesses such as cancer.