Recently, the Euro+Med PlantBase (http://ww2.bgbm.org/EuroPlusMed/ [accessed on 11 Jan 2011]) listed subsp. brasilicum for Cyprus, a taxon not accepted by Meikle (1985) but mentioned by several earlier authors. There seem to be no systematic studies on this complicated group neither in Cyprus nor in neighbouring regions. X. strumarium is to be understood s. l. Possibly, more than one taxon of the group occurs in Cyprus.
A. R. D. Meikle, Flora of Cyprus 2. 1985
0–1525 mBB. R. D. Meikle, Flora of Cyprus 2. 1985