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The flora of Scotland is an assemblage of native plant species including over 1,600 vascular plants, more than 1,500 lichens and nearly 1,000 bryophytes.The total number of vascular species is low by world standards but lichens and bryophytes are abundant and the latter form a population of global importance.
Non-native conifers are the tallest trees now found in Scotland. At 64.3 metres (211 ft), a Grand Fir planted beside Loch Fyne, Argyll in the 1870s was named as the UK's tallest tree in 2011, [35] however it has since been surpassed by a Douglas fir in Reelig Glen near Inverness, which is 66.4 metres (218 ft) high. [36]
The Skipinnish Oak is a large and ancient oak tree in Lochaber in the Scottish Highlands. In 2024 it won UK Tree of the Year. [1] It is a sessile oak (Quercus petraea), thought to be at least 400 years old. It is hidden within a Sitka spruce plantation, on the Achnacarry estate, near Loch Lochy.
Human habitation began with Mesolithic peoples who were present shortly after the ice retreated, c. 9000–8000 years ago, scattered throughout the present-day English portion of the ecoregion, as well as in the Welsh, Irish, and eastern Scottish areas of the Celtic broadleaf forests.
The Last Ent of Affric is an ancient elm in the Scottish Highlands, [1] designated a Tree of National Special Interest (TNSI) [2] by the Woodland Trust and named Scotland's Tree of the Year in 2019. [3] [4] It is probably the last surviving tree of an ancient forest, and by virtue of its isolation has remained safe from Dutch elm disease. [2]
In terms of biodiversity, the only comparable temperate deciduous forest regions in the world are in central China, Japan, and in the Caucasus Mountains.Both the Appalachians (along with the neighbouring Appalachian mixed mesophytic forests ecoregion) and central China contain relict habitats of an ancient forest that was once widespread over the Northern Hemisphere.
The Tennessee Invasive Plant Council has identified the following invasive plants in Tennessee. The plants are all widely established across the state and have been reported in more than 10 counties.
Major stands of southern Appalachian spruce–fir forest. The southern Appalachian spruce–fir forest consists of several stands covering a combined area of between 60,000 and 70,000 acres (24,000 and 28,000 ha), [2] [6] although less conservative estimates have placed the forest's coverage at around 90,000 acres (36,000 ha). [7]