Larrea divaricata

Larrea divaricata is a perennial evergreen shrub belonging to the Zygophyllaceae family. Known for its remarkable drought tolerance, this plant is a characteristic element of the arid landscapes of South America, specifically in regions across Argentina and neighboring countries.

The plant originates from the xeric zones of the Southern Hemisphere. It thrives in environments where water is scarce and soil nutrients are minimal. Its ability to colonize harsh, stony terrain makes it a significant botanical subject for research into xerophytic survival strategies in agriculture and ecological restoration.

Botanically, Larrea divaricata is identified by its resinous, compound leaves which have a strong, characteristic scent, especially after rain. The shrub typically grows to a height of 2 to 3 meters. Its flowers are small, bright yellow, and serve as an important nectar source for local pollinators in desert ecosystems.

For cultivation, this species requires excellent drainage and full sun exposure. It is highly sensitive to soil waterlogging, which is the primary cause of root rot. In agricultural settings, it is best suited for climates with low humidity and high thermal accumulation, requiring almost no irrigation once established.

The plant is highly valued for its chemical composition, particularly for the production of nordihydroguaiaretic acid (NDGA), which possesses significant antioxidant properties. Historically and currently, it is utilized in traditional medicine for its anti-inflammatory and antiseptic effects. Due to the high resin content, it is generally resistant to most insect pests, although proper air circulation is necessary to prevent mildews.