I have a brugmansia seedling that has emerged as a tricotyledon(it has three seed leaves).
I did a search on the Forum and elsewhere and it seems that when this happens, it's the plant equivalent of a twin, perhaps a conjoined twin? Everything else about the seedling appears normal; stalk looks healthy and stout. I am very curious to see how it develops.
Anyone else encountered these sorts of variations? I'm sure it's not uncommon. What other plant species tend to do this?