yeah...i think polyploid only has to do with the number of chromosomes, not leaves. A triploid has 3 chromosomes, diploid has 2. Polyploidy - Wikipedia, the free encyclopedia The thing is, your spelling phyllotaxy wrong...and i dont even know if thats the real explaination, it doesnt say anything about EXTRA leaves, it just says that the leaf PATTERN is different.... Phyllotaxis - Wikipedia, the free encyclopedia