 The "Plantarum seu stirpium historia" of 1576 was intended as a companion piece, and was published in conjunction with a re-issue of "Stirpium aduersaria noua", as "Nova stirpium adversaria" In 1571 l'Obel published his Flemish translation of "Plantarum", as "Kruydtboeck" (Herb book), and in 1605 he reissued the "Stirpium".The "Plantarum" deals with several subjects, including descriptions and illustrations (more than 2,000) of plants known to l'Obel, with plant names given in Latin, German, English, French, Flemish, Italian, and Spanish.It also includes a history of botany and the use of plants in treating diseases.