The red cynomorium (Cynomorium coccineum) is a rare, holoparasitic plant that does not produce its own food. Unlike most plants, it lacks chlorophyll and cannot perform photosynthesis. Instead, it survives by attaching itself to the roots of other plants, such as salt-tolerant species like Halimione portulacoides or tamarisks, and drawing nutrients from them. This unusual lifestyle often leads people to mistake it for a fungus, as it has no visible leaves and a fleshy, root-like structure. The red cynomorium was only officially classified in 2016, when genetic sequencing placed it in the Saxifragales order, a group that includes flowering plants like the familiar saxifrage. Historically, the red cynomorium has played a role in Mediterranean medicine, with its use dating back to ancient times. It was believed to have aphrodisiac and energizing properties, and was used to enhance vitality. The plant spends most of its life hidden underground as a thick, unbranched rhizome, emerging only in spring to reproduce. When it does surface, it produces a dense, club-shaped inflorescence—its flowering structure—that can grow between 15 and 30 centimeters tall. Its unique appearance has earned it a variety of local names, including "Maltese mushroom" and "desert thumb." In Malta, it is known as "Għerq tal-Ġeneral," a name linked to its historical use by the Maltese military. In the Arab world, it is called tarthuth, reflecting its traditional medicinal applications. The red cynomorium is found in several Mediterranean regions, including southern Portugal, Corsica, Sardinia, Sicily, Malta, Morocco, Tunisia, and even parts of Central Asia, where it grows in high-altitude soils above 1,600 meters. In France, it is particularly rare, with only a few rocky islets in Corsica providing the saline conditions and suitable host plants needed for its survival. Recent genetic studies have revealed an intriguing phenomenon: the plant has acquired large portions of its genome through horizontal gene transfer, a rare process in which genetic material is transferred directly from one organism to another, rather than through traditional inheritance. This has puzzled scientists and raised questions about how such a parasitic plant has evolved and adapted over time. The red cynomorium has a specific and delicate survival strategy. It detects and attaches to the roots of very particular host plants, and once it emerges to flower, it relies on flies attracted by a sweet, cabbage-like scent for pollination. After pollination, its bright red inflorescence gradually turns black, signaling the end of its reproductive cycle. Today, the plant is drawing renewed interest from the biomedical field, with researchers exploring its potential pharmacological properties. Some studies are investigating its possible applications in oncology, highlighting the need for further research into this enigmatic and historically significant species.