We owe to the german Dominican Albertus Magnus (†1280) a set of writings on natural sciences among the most important of the Middle Ages. His treatise De vegetabilibus and plantis is the comment of an apocryphal text which circulated in the XIIIth century under the name of Aristoteles. Its first 5 books are quite theoretical, whereas the VIth book gives a description of a great number of plants grouped together in sections following the letters of the alphabet. Edited in the XIXth century by Auguste Borgnet, it has never been translated into French; the present article gives a sample of this impressive work, that is to say a translation of the chapter on plants beginning with F, from Faba to Frumentum.Le dominicain allemand Albert le Grand ...