Filifera or Robusta?
I rescued a few small Washy seedlings in San Diego last year from a friend's garden ("weeds" to her). Four of them survived being dug up, wrapped in plastic, packed in the checked bag and replanting here on the East Coast. They recovered slowly, but are growing well now. The biggest one, I'm pretty sure is a filifera with it's fiberous costa-palmate fronds and green petioles. Since they all came from the same garden bed, I assumed they all were filifera too. Now I'm not so sure. The second one largest one is suddenly showing a lot of maroon coloring on it's petioles and they seem to be getting "armed with teeth." See what you think...