This is a houseplant. I'm curious abouts it's idenity and the longer filaments extending from it. Thanks!

Yes, that's snow you see through the window.

Looks like a variety of Nephrolepis; there are many in that genus of plants: https://garden.org/plants/sear...

It reminds me of Boston Fern (Nephrolepis exaltata)

Do you know what the filament like (fronds) are?

Yes, it does look like a Boston Fern. I'm not sure what the 'filiments' are, maybe arial roots. When I had a Boston Fern, I was told not to cut them off.

It is currently in a tiny 2" plastic pot and probably needs re-potted. Maybe the aerial roots are an indication of it's crowded state. Any advice on re-potting it?

Those lateral branches/runners will travel along the soil surface and produce new roots; once roots have formed it can be separated from the mama plant and potted up for additional plants.

If you make a Boston Fern happy, it will fill any pot you give it in record breaking time. The key to success is good light and lots of water. If its only in a 2 inch pot, I would move it to a 6 inch pot. Normally, you would move it up one pot size but with a Boston Fern, I think you would be repotting before the end of summer. Also, they are easy to divide so you can keep it at a reasonable size.

Ok, just found the answer. The arial roots are not arial roots, they are runners. If they were on soil, they would root and grow new plants.

Wow! Thanks for all the great information.