Answer:
What is the word that even in plain sight remains hidden?
I can be winding and I can be straight. I can be smooth and I can be rough. Sometimes both. I start out black but fade to brown. My favorite colors are yellow and white and I love stripes and dashed lines.
I begin and have no end. Eventually I will be the end of all that has begun.
Though not a plant I have leaves. though not a beast I have spine. Though many wouldn't need me I am more valuable than wine.
I am black when you buy me, red when you use me. When I turn white, you know it's time to throw me away. What am I?
A little house full of meat, no door to go in and eat.