Short answers, pulled from the story.
When a raspberry is picked, the receptacle stays on the plant, leaving a hollow core in the fruit. When a blackberry is picked, the receptacle comes away with the fruit. This structural difference in how the fruit detaches from the stem is the defining botanical distinction between the two.
A raspberry is made up of around 100 drupelets, each developing from a distinct carpel of a single flower. Each drupelet contains its own seed, which accounts for the slight crunch in the fruit's texture.
The word raspberry first appeared in print in 1602 as a compound of rasp and berry. The rasp element traces back to raspise, a sweet rose-colored wine recorded in the mid-15th century, derived from the Anglo-Latin vinum raspeys. In northern England and Scotland, rasp alone is still used as the name for the fruit.
Russia led world raspberry production in 2023 with 23% of the total global harvest of 940,979 tonnes. Other major producers that year included Mexico, Serbia, and Poland.
Raspberry plants face threats from Japanese beetles, gray mold (Botrytis cinerea), Phytophthora root rot, Verticillium wilt, and several viral complexes. Raspberry mosaic disease is caused by the combined action of black raspberry necrosis virus, raspberry leaf mottle virus, and Rubus yellow net virus. Raspberry crumbly fruit disease involves raspberry bushy dwarf virus co-infecting with one or more additional viruses.
Raw raspberries are 86% water, 12% carbohydrates, and provide 53 kilocalories per 100 grams. They supply 6.5 grams of dietary fiber and 29% of the Daily Value for both vitamin C and manganese per 100-gram serving.