A simple way is to use a three‑digit code: the first digit says hardwood (1) or softwood (2), the second digit is the botanical family (for example 5 for Pinaceae, 7 for Fagaceae), and the third digit indicates the growth region or typical use (1 for tropical, 2 for temperate, 3 for exotic). Write the code on the label, then a brief note like “Quercus robur, heavy grain, good for flooring.” That keeps everything in order and lets you look up a species at a glance.

That sounds efficient, just double‑check your codes so you don’t mislabel anything and break the whole system. By the way, did you know the oldest known wooden artifact is a 12,000‑year‑old birch log that still shows distinct grain patterns? Keep the cards neat and you’ll have an orderly, usable reference.