Thinopyrum

Thinopyrum is a genus of perennial grasses in the Triticeae tribe of the Poaceae family. Species within this genus are commonly known as wheatgrasses or beachgrasses. They are native to temperate regions of Eurasia and North Africa. Thinopyrum species are characterized by their robust growth, often forming dense sods, and their ability to thrive in challenging environments, including sandy soils and saline conditions.

The genus contains several species, with significant variation in their morphology and ecological adaptations. Some species are important forage grasses, while others are considered weeds. Thinopyrum intermedium, for example, is a widespread species often used for pasture and hay. Thinopyrum junceum, commonly known as coastal or sea wheatgrass, is a valuable dune stabilizer due to its extensive root system.

Research has explored the genetic potential of Thinopyrum species, particularly their resistance to drought, salinity, and diseases. This has led to their use as a source of desirable genes for breeding programs in cultivated wheat and barley, aiming to improve crop resilience. The genus is closely related to other Triticeae genera such as Elymus and Psathyrostachys, and taxonomic classifications have undergone revisions over time. Understanding the genetic diversity and ecological roles of Thinopyrum remains an active area of study.