A love rose consists of a glass tube with a paper or plastic rose inside of it, and a bit of cork or foil on the ends to keep the rose from falling out. While ostensibly intended as romantic gifts, their primary known use is as a crack pipe by users of crack cocaine.^[1] They are commonly sold at convenience stores, particularly in inner-city locations.^[2]
Crack cocaine users remove the cork or foil from the ends, discard the rose, and put a small piece of copper scouring pad or similar metallic material into the end to act as a "filter". The pipes are not durable, and must be replaced often.
Hash oil is also smoked using glass tubes like this, placing the oil inside the glass then heating the outside until the oil begins vaporizing, then inhailing the vapor in through the tube as it vaporizes.

Red Rose Blooming

Rosa

A rose is a woody perennial of the genus Rosa, within the family Rosaceae. There are over 100 species. They form a group of plants that can be erect shrubs, climbing or trailing with stems that are often armed with sharp prickles. Flowers vary in size and shape and are usually large and showy, in colours ranging from white through yellows and reds. Most species are native to Asia, with smaller numbers native to Europe, North America, and northwest Africa. Species, cultivars and hybrids are all widely grown for their beauty and often are fragrant. Rose plants range in size from compact, miniature roses, to climbers that can reach 7 meters in height. Different species hybridize easily, and this has been used in the development of the wide range of garden roses.^[1]