Besides oddly equating plants to humans in an oblique way, you have exposed the illogic of your perspective, since to become an oak tree the oak must go through the earlier age of it's lifetime which was the age of acorn. Your syllogistic flow doesn't appear to make a point, other than to repeat the term 'potential', which of course when an alive organism is located at one moment in time is the exact same state for every alive organism, namely, its next temporal moment is always and only potential. But it is the same organism from moment to moment once conceived.
a toddler is not a teenager, nor is a toddler a parent,
A baby is a potential toddler.
A fetus is a potential baby.
A zygote is a potential fetus.
Have fun building your oak desk from an acorn.
I have never heard a mother refer to her prenatal child as "my fetus". Most women I know who are pregnant with child speak English, not Latin, and without exception refer to their child as "my baby", even among those mothers who are hiring an abortionist to kill the baby.
Regarding your use of the word "potential", the following is one of the best statements I have seen on the subject:
"POTENTIALITIES (CAPABILITIES) ARE LIMITED TO THE KIND OF THING TO WHICH THEY BELONG. A turnip could never have the capability of reasoning, simply because its parents are never able to bestow such an ability upon their offspring. And they can't bestow it, because they don't possess it themselves. The only abilities possessed by turnips is to do turnip-things. The capability to perform uniquely human actions, such as reasoning, whether at this moment, or only years from now, demands a human subject as its possessor. If the offspring of human parentage, at any time, even in the zygote-stage, possesses the "potentiality to act as a human being," he or she is already a human being. Nothing else could possess that capability. As for the "potentiality to be a human" it would be a contradiction of terms, since the potential and the actual cannot exist simultaneously in anything."
Cordially,