Adenocarpus bacquei, commonly known as Peaweed, is a species of flowering plant in the legume family, Fabaceae. This shrub is a member of a genus characterized by its papilionaceous flowers and often glandular foliage. Peaweed is recognized for its specific adaptations to its native environment and its role within its ecological community. Physically, Adenocarpus bacquei is a shrub that typically reaches a modest size, often growing to between 0.5 and 1.5 meters in height. Its growth habit is generally erect to spreading. The leaves are characteristic of the genus, being simple or trifoliate, and often covered in small glands that can give them a slightly sticky or aromatic feel. These leaves are typically arranged alternately along the stems. The flowers of Adenocarpus bacquei are borne in racemes or panicles and are a vibrant yellow, typical of the pea family, with the distinctive banner, wings, and keel petals. Following flowering, the plant produces fruits in the form of pods, which are characteristic of legumes, containing seeds. The bark is usually smooth on younger stems, becoming rougher with age. The native distribution of Adenocarpus bacquei is primarily restricted to specific regions of the Iberian Peninsula, particularly in Spain. It thrives in Mediterranean-type climates, often found in open woodlands, scrublands, and on rocky slopes. Its natural habitat frequently includes areas with well-drained soils, often calcareous or sandy, and it is adapted to periods of drought and exposure to sunlight. Cultivation requirements for Adenocarpus bacquei mirror its natural preferences; it requires full sun and well-drained soil. It is generally drought-tolerant once established and can withstand moderate frosts, making it suitable for xeriscaping and rock gardens in appropriate climates. Adenocarpus bacquei holds ecological significance as a component of Mediterranean flora, providing habitat and food sources for local fauna. As a legume, it contributes to nitrogen fixation in the soil, which can benefit surrounding plant communities. While not widely cultivated for ornamental purposes compared to some other legumes, its attractive yellow flowers and drought tolerance make it a potentially valuable plant for specialized gardens seeking native and low-maintenance species. There is no widespread documented use of Adenocarpus bacquei in medicinal, culinary, or significant economic applications. An interesting characteristic of Adenocarpus species, including Adenocarpus bacquei, is the presence of glandular trichomes on their leaves and stems. These glands can produce volatile oils, contributing to the plant's aroma and potentially serving as a defense mechanism against herbivores or attracting specific pollinators. The adaptation to dry, sunny environments, coupled with its ability to fix nitrogen, highlights its resilience and ecological importance within its native Mediterranean ecosystems.