Important: Safety Warning
This page prescribes plants as medicine according to pre-modern medical theory. Several of the plants named are toxic, correct identification is difficult, and the doses given have no scientific basis. Do not ingest or apply any preparation described here.
This information has been left in for historical purposes but should not be acted upon.
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Pearl Trefoil
Description. It differs not from the common sort save only in this one particular, it has a white spot in the leaf, like a pearl. It is particularly under the dominion of the Moon, and its icon shews that it is of a singular virtue against the pearl, or pin and web, in the eyes.