Carthamus arborescens is a perennial herbaceous plant belonging to the Asteraceae family, commonly known as the tree safflower. This species is notable for its shrubby, tree-like growth habit, distinguishing it from many other members of the genus Carthamus, which are typically annuals. Its significance lies in its unique morphology and its presence within specific Mediterranean ecosystems. Physically, Carthamus arborescens presents as a woody shrub that can reach heights of up to 1.5 meters, sometimes exceeding this in favorable conditions. The stems are erect and branched, often giving the plant a somewhat spreading appearance. Its leaves are lanceolate to oblong, with entire or slightly toothed margins, and are typically arranged alternately along the stems. The foliage is generally a grayish-green, contributing to the plant's drought-tolerant aesthetic. The most striking feature of Carthamus arborescens is its capitula, or flower heads, which are solitary and terminal. These flower heads are large, resembling those of other safflowers, and are composed of numerous ray florets. The color of these ray florets is typically a vibrant yellow or orange, blooming during the late spring and summer months. Following flowering, the plant produces achenes, which are the characteristic dry fruits of the Asteraceae family, containing a single seed. The native distribution of Carthamus arborescens is primarily concentrated in the western Mediterranean region, with documented occurrences in parts of Spain, particularly in arid and semi-arid areas. It thrives in well-drained soils and prefers full sun exposure, making it well-suited to rocky slopes, garrigue, and open, dry habitats. While not widely cultivated, its adaptability to dry conditions suggests potential for xeriscaping and ornamental use in Mediterranean climates. Ecologically, Carthamus arborescens plays a role in its native habitats by providing a food source and shelter for local fauna. Its bright flowers attract pollinators, contributing to the biodiversity of its environment. There is no widespread documented agricultural, medicinal, culinary, or significant economic importance specifically attributed to Carthamus arborescens in scientific literature, differentiating it from its annual relative, Carthamus tinctorius, which has a long history of cultivation for its oil and dye. An interesting characteristic of Carthamus arborescens is its woody base, which allows it to perennialize and develop its shrubby form, a trait that is less common in the genus. This woody structure provides resilience against drought and grazing, enabling it to persist in challenging environments. The plant's ability to establish and thrive in nutrient-poor, dry soils highlights its efficient resource utilization and adaptation to xeric conditions.