grown from a frag, if so looks like a captive secale.. (super fast half ***'d id.. but I'm 85%) positive.
edit: never-mind.. it's to smooth. I don't believe it's a nana, or a secale now that i think about it (it just reminded me of this secale I have).. unless you have really low flow and it just grew weird..
more important, your in tahoe, and are going to a swap?! I'm in mammoth where is a swap around that area?