Yorkshire-fog (Holcus lanatus) is a native perennial grass species commonly found throughout the United Kingdom. Belonging to the Poaceae family, it is prevalent in a variety of habitats, including grasslands, meadows, heathlands, and disturbed areas such as roadsides and waste grounds.

Yorkshire-fog thrives in nutrient-rich, moist soils, often favouring damp or marshy habitats. It is highly adaptable and can tolerate a wide range of soil types and environmental conditions, making it a common sight in diverse landscapes across the UK.

Predators of Yorkshire-fog include herbivores such as grazing mammals, which may feed on its foliage. However, its tough texture often provides some protection from extensive browsing.

As a perennial grass species, Yorkshire-fog can live for several years, forming dense tufts of foliage and spreading via underground rhizomes. It reproduces via seeds, which are dispersed by wind or animals, contributing to its ability to colonise new areas.

Culturally, Yorkshire-fog does not hold significant symbolic or traditional references in the UK. However, it is valued for its role in supporting biodiversity and providing habitat for insects and other wildlife.

An interesting fact about Yorkshire-fog is its ability to thrive in both acidic and alkaline soils, making it a versatile species in grassland ecosystems. Additionally, its fluffy flower heads are attractive to pollinators such as bees and butterflies, contributing to its ecological importance in British habitats.