Bewick and Beanley Moors in association with old collapsing heather bushes. Conifer plantations aside, the moors have little woodland cover; what exists is found on the boundaries and following the paths of streams at lower elevations. Spwecies include alder ("Alnus glutinosa"), hawthorn ("Crataegus monogyna"), brown birch ("Betula pubescens"), rowan ("Sorbus aucuparia") and occasional ash ("Fraxinus excelsior"), and ground-cover of yellow pimpernel ("Lysimachia nemorum"), wood sorrel ("Oxalis acetosella") and smooth-stalked sedge ("Carex laevigata"). As with the bogs, so the woodland also provide transition locations, such as from wet birch-wood to purple moor-grass or to bogs of lesser pond-sedge ("Carex acutiformis"). Other wood species found include
Sorbus not closely related to the true ash trees which belong to the genus "Fraxinus", although the leaves are superficially similar. As treated in its broad sense, the genus is divided into two main and three or four small subgenera (with more recent generic assignments in parentheses): "Sorbus" species are used as food plants by the larvae of some moth species—see list of Lepidoptera that feed on "Sorbus". "Sorbus domestica" is used to flavour some apple wines, see "Apfelwein. "Sorbus" species are cultivated as ornamental trees for parks and gardens, and have given rise to several cultivars. The following, of mixed