Gentiana Clusii is a mountain flower which is mainly found in Alpine mountains and native to Europe. It is commonly known as Clusius Gentian and got its name from the botanist who studied Alphine Flora.
It is a perennial herb. Flowers are bell-shaped and blue in colour. It blooms from May to July.
Like Edelweiss this is also a protected flower.
Even though Poland, Switzerland and other countries issued stamps of this flower, the one issued by Austria in 19 September, 2008 is a special one because it is a self-adhesive embroidery stamp.