Here's a breakdown:

* Haploid: One set of chromosomes (n)

* Diploid: Two sets of chromosomes (2n)

* Triploid: Three sets of chromosomes (3n)

* Tetraploid: Four sets of chromosomes (4n)

* Pentaploid: Five sets of chromosomes (5n)

* Hexaploid: Six sets of chromosomes (6n)

And so on...

Polyploidy is common in plants and can occur naturally or be induced artificially. It often leads to larger, more robust individuals, and can even create new species.