I did not do it. It was just adventitious !

The word adventitious is not one that is in the English language.

Lateral roots is Endogenous. Adventitious roots have lateral roots.

I don't know what the word adventitious means.

(adventitious - occurring by chance and not design, accidental, or abnormal)

"The size of the reservoir was reduced by adventitious rockslides from the riverbank behind the dam."

"Redwood burls are large adventitious buds that form on the trunks of the trees."