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Besides its religious importance, the Bible, because of its ancient origin represents a relevant witness of the way of life of the people mentioned in it. The Holy Scripture is also the first text revealing the utility of plants for man, as natural sources of food, wood, fibers, oils and medicinal herbs. In the last 60 years, several distinguished botanists have attempted to identify the scientific names of the plants cited in the Bible. Nonetheless, these scholars have provided different lists of plants appearing in the Bible, none of which could be accepted as indisputable. The authors have combined their expertise to focus on the identification of the diuretic plants, through an historical analysis of the literature on this issue.

Joseph Andreas Jacobus Plenck was born in 1735 in Vienna where he studied surgery with Johan Christian Retter. At age 35 he was appointed Professor of Surgery and Obstetrics by Maria Theresia. Subsequently he became professor and life long secretary of the Medical Military Academy know as the Josephinum where he worked up to 1807. He was one of the most brilliant scientific writers of his time. Here we analyze his medical treatise, Icones Plantarum Medicinalium secundum systema Lynnaei cum enumeratione virium et usus medici, chirurgici et diaetetici, published in folio in Latin and German. This is a therapy based on plants in which the author discusses the medical use of 758 plants. This article is centered on 111 plants with diuretic properties which still appear in many pharmacopoeias., (Copyright 2002 S. Karger AG, Basel)

The De Materia Medica of the Greek Dioscorides reports about 200 plants used for the treatment of pathologies of the urogenital tract during the 1st century AD. On the basis of explicit and implicit affirmations by Dioscorides, a theoretical system concerning the specific properties of these plants has been attempted. Comparison of the species reported by Dioscorides and Pliny the Elder for renal affections does not support the thesis of a close relationship between De Materia Medica and the Naturalis Historia.

The Naturalis Historia of Pliny the Elder consists of 37 books, of which 16 are devoted to botany. About 900 plants are named, but many names are synonyms and identification is often impossible. Where identification is possible it is achieved by comparison of the actual names with the vernacular names in related languages or by indirect evidence from their medical use. In this way 130 plants used in renal therapy during Roman times can be identified. Many were eaten as part of the diet, and the distinction between medicinal and edible plants was not clearcut. Pliny was also the first author to comment that wild species are more active than cultivated ones. Most of the plants reported by Pliny are also mentioned by Dioscorides, and more than 30 of them were also listed by Plenck. Several are still quoted in modern pharmacopeias.

Joseph Jacob Plenck (1735-1807) is considered to be the forerunner of modern European dermatology, who also compiled a list of about 800 plants with medicinal uses. Of these about 115 have diuretic properties and are currently included in various pharmacopeias. They were traditionally used to cure ascites of various causes, in urolithiasis, nephritis, cystitis, bladder ulcers, strangury, urinary retention and incontinence. Few of these plants have been fully investigated by modern medicinal chemists, and many are worthy of further study.