What is a typical feature of LSD?

A typical feature of LSD (lysergic acid diethylamide) is its presence on blotter paper. This method of distribution is distinctive because LSD is a very potent hallucinogen, and it is often applied in liquid form onto small pieces of paper that are divided into squares, or "blotters." Each square can contain a dose of LSD, which makes it easy to handle and consume. The use of blotter paper is widely recognized and is a common way in which LSD is marketed and bought in illicit contexts.

In contrast, the other forms listed are more characteristic of different substances. Prescription pill form is not typical for LSD since it is not commonly prescribed for medical use. The off-white crystallized powder does not accurately represent LSD, as this form is more associated with other substances. The black-brown tarry goo is typically related to substances like heroin or certain types of cannabis extracts, not LSD. Thus, the unique characteristic of LSD being consumed via blotter paper makes it easily identifiable and is a critical aspect of understanding this specific hallucinogen.