The mountain spike-thorn was a particular subspecies of spike-thorn, found primarily in tropical mountains.

The most common blossom colour was a deep, rich red, but the white mountain spike-thorn was especially prized for its trumpet-shaped blossom, which has a deep almost cobalt-blue throat, fading to pure white as it approaches the outer edge of the blossom, which is, in turn fringed in a deep golden yellow.

It was part of Charisian marriage tradition for family and well-wishers to bring their own sprays of white mountain spike-thorn. (BSRA)