The more you look at things like ploidy level, the more wierd things you find out in plants - do a quick search of ploidy level in sugarcane, that tends to be a common example of ploidy level series in plants - or check out roses, including meiosis in dogroses, that is probably the oddest example I can think of for 'chromosome craziness' haha, but interesting too, even more so after hearing and speaking w/ Nybom, she's very passionate about her canina. Examples like these aren't the norm, but I've seen estimates that around half of all flowering plant species are polyploid, so it makes for interesting things whether by natural occurance or as a result of breeding.