include Robert Burns A Red, Red Rose, Hugh MacDiarmid's A Drunk Man Looks at the Thistle, Sorley MacLean's Hallaig, Harry Lauder's I Love A Lassie and in the 21st century, Runrig's And The Accordions Played. The last two lyrics include a reference to the bluebell. The "Scottish Bluebell" is Campanula rotundifolia, (known elsewhere as the "Harebell") rather than Hyacinthoides non-scripta, the "Common Bluebell". Trees held an important place in Gaelic culture from the earliest times. Particularly large trees were venerated, and the most valuable such as oak, Common Hazel and Apple were classed as "nobles". The less important Common Alder, Common Hawthorn and Gean were classed as "commoners", and there were "lower orders" and "slaves" such as Eurasian Aspen and Juniper. The alphabet was learned as a mnemonic using tree names. Rowan was regularly planted close to Highland houses as a protection from witchcraft. Various plants are said to have apotropaic qualities, notably Mountain Ash. Henbane (Hyoscyamus niger) may have been used as a hallucinogen as long ago as the Neolithic period. This tradition has recently been taken up once again by New Agers. See also Botanical Society of Scotland Gardens in Scotland :Category:Scottish botanists List of Scottish plants :Category:Lists of the vascular plants of the British Isles List of the mosses of Britain and Ireland Fauna of Scotland Traditional dyes of the Scottish Highlands, many of which use plants. Forestry in Scotland References Lusby, Phillip and Wright, Jenny (2002) Scottish Wild Plants: Their History, Ecology and Conservation. Edinburgh. Mercat. Ratcliffe, Derek (1977) Highland Flora. Inverness. HIDB. Shaw, Philip and Thompson, Des (eds.) (2006) The Nature of the Cairngorms: Diversity in a changing environment. Edinburgh. The Stationery Office. . Smout, T.C. MacDonald, R. and Watson, Fiona (2007) A History of the Native Woodlands of Scotland 1500–1920. Edinburgh University Press. . Webster, Mary McCallum (1978) Flora of Moray, Nairn & East Inverness. Aberdeen University Press. Notes External links Trees for Life species profiles Scotland Biota of Scotland