Couple of maps out there.
this one shows several finds in both south MO and KS, but
this one only shows a couple in MO. Of course, those are only reports, who knows what's been found and not reported (the majority probably).
I've seen a yellow dandelion and the redbuds are starting to come in, but I've yet to find anything in my area (Miami Co Ks).
I have family in Bates county and haven't heard anything from them yet.
The anticipation is incredible isn't it? I was watching some vids on youtube this morning and ended up skipping lunch and looking around in the woods near where I work. Fruitless, but fun.
Good luck all!