Grass Wood, Wharfedale cleared through selective felling, many areas of the woodland have the appearance of an early successional stage of advance natural regeneration through mainly saplings of ash, birch and sycamore, this enclosed within a variable canopy of ash, sycamore, beech, oak, and with some birch. Shrubs and small trees in the understorey include bird cherry "Prunus padus", hazel, spindle "Euonymus europaeus", buckthorn "Rhamnus cathartica", wild privet "Ligustrum vulgare", blackthorn "Prunus spinosa" and guelder-rose "Viburnum opulus". The underlying geology ensures that most of the site is well drained, favouring lime-loving plants – the calcicoles. There are, however, localised areas with poorer drainage
Prunus sibirica Prunus sibirica Prunus sibirica, called Siberian apricot (), is a species of shrub or small tree native to eastern China, Japan, Korea, Mongolia, and eastern Siberia. It is in the genus "Prunus" in the rose family, Rosaceae, one of several species whose fruit are called apricot, although this species is rarely cultivated for its fruit. The species was named by Carl Linnaeus in 1753. The species is highly genetically diverse. It grows in the form of a small tree with spreading branches and reaches a height of . It is very frost resistant and can survive temperatures down to .