It can be a challenge for cloudspotters, no matter their experience level, to distinguish the different forms of the high streaked ice-crystal cloud Cirrus. Try your hand at this Cirrus cloudscape spotted by Adrienne Katz (Member 59,544) over Tucson, Arizona, US, which we reckon includes three types of Cirrus: uncinus, intortus, and floccus. The translations of the Latin in each Cirrus form should help identify them. Cirrus uncinus is Latin for ‘hooked’, Cirrus intortus for ‘tangled’, and Cirrus floccus is Latin for a ‘tuft of wool’. But how much hook, tangle, or tuft is needed to make a call? It can be challenging, and clouds are often in transition from one form to another with no clear distinction between the types. It is often a matter of judgement. But which is which here? We reckon Adrienne’s clouds include Cirrus floccus on the lower right and Cirrus intortus to the upper left. And in the upper right? Well, that’s Cirrus uncinus intortus – yes, both hooked and tangled at the same time. It was a trick question. Of the geekiest kind.