Nouvelle flore coloriée de poche des Alpes et des Pyrénées. Paris, Klincksieck, 1906-1912. Alps, plants, Pyrenees, The illustration features a detailed botanical depiction of **Juncus Jacquini**, commonly known as Jacquin's Rush. It displays the plant's slender green stalks, alongside a close-up view of its root system. The flowering spike, characterized by its unique brush-like structure, adds a delicate touch to the composition. The accompanying labels provide the name in both French and English, highlighting its scientific context. This representation emphasizes the intricacies of the plants growth, showcasing its habitat in marshy areas and alongside streams, at elevations ranging from 1500 to 2900 meters.