Gyrocaryum
Gyrocaryum is a genus of plant in family Boraginaceae. It contains a single species, Gyrocaryum oppositifolium, which is endemic to Spain. The genus and species were described by Spanish botanist Benito Valdés in 1983. It was considered to be extinct in Andalucía until a population was found in 2025.
Taxonomy
Gyrocaryum is a genus of plant in family Boraginaceae which contains one species, G. oppositifolium that is endemic to Spain. The genus and species were described in 1983 by Spanish botanist Benito Valdés in the journal Willdenowia. The genus name comprises two latinized Greek words, "gyros" for ring and "caryos" for nut, and was chosen to highlight its distinguishing characteristic, namely the presence of a cartilaginous ring on the fruit. The holotype specimen was collected in Seville in 1982 by Valdés and colleagues, and is housed at herbarium at the University of Seville .Since its description, it was thought to be extinct in Andalucía, but a population was found in Sierra Morena National Park in southern Spain in 2025.