I couldn't even venture a guess at what I have.
I do know that most of the property we are on went uncut for years. It used to be high, thick wild grass, and it was slowly trimmed back and made into a lawn.
Since we have very high amounts of rain here, I have a lot of problem areas where grass turns into moss. This stuff is so disconnected from the ground, you can end up on your behind before you know it. One good rub with your shoe and an entire piece of moss will move right off and expose bare soil underneath. Last year was the first year I tried to fertilize some areas, and it did seem to help a little.
I also need to focus on my shaded areas this year. I have a few large spots underneath groups of trees that will not grow anything due to lack of sunlight. I am going to try some seed that is suppose to grow even in the shade.
I can tell you all one thing. My fears about the quality of this 54 inch deck have been put to rest. In fact, for me, I am actually glad I opted for it over the 7 iron. I do a LOT of trailer work with my #18 cart, I need ground clearance. My 54C sits just high enough that 98% of the time, I can accomplish all my tasks with the mower deck still on the tractor. Had I purchased a taller 7 iron deck, I would have been removing/installing very frequently. Even though it is easy with that drive over deck, it still takes time, and removing the drive-shaft does too. I am extremely impressed with the cut quality so far, it has exceeded all of my expectations. Since I am happy with the cut quality, I am glad I didn't spend that extra $1,000 on a larger deck.