system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Do plants or trees have unique DNA “fingerprints” like humans do that can be used to identify individual plants?
gpt
Every individual everything that is not a clone or twin of another individual has its own unique DNA.

Bacteria clone themselves so the daughter cells of a bacteria will share the same DNA as the parent *except* for random mutations that occur naturally. And bacteria can pick up genetic material from their environment. Anything that reproduces asexually will be similar.

Some animals, mostly bugs but sometimes fish, lizards, and other animals (although not mammals, naturally) can do something called parthenogenesis, where females produce eggs without the need for sperm. These are *usually* but not always clones and share the same DNA.

Plants can send out underground runner roots that will grow into a new plant that is identical to the original. These share the same DNA. Some plants, especially ferns, have a step in their reproductive cycle where they sent out spores instead of seeds, which will grow into copies of the parent plant with the same DNA. Humans have learned how to plant cuttings from a parent plant which will grow into a copy of that parent. Corals and other simple animals can also be cut or fragmented and grow into new individuals with the same DNA.

And of course, all of your own cells have your same DNA (mostly, except for random mutations). This is true of more or less all complex multicellular life.

But other than these kinds of exceptions, *all* living things that we know of have their own unique genetic code. So as long as that plant was grown from a seed and not a runner, spore, or cutting, yes, it will have its own unique DNA that can be traced to that one individual (or its clones from runners, spores, or cuttings taken from that plant).