In reply to:

Hang out the flag! a genuinely infrequently used word, worth knowing, if I knew how to tell one when I see it.
roble e pronounced like long “a”
n.
5AmSp < Sp, oak < L robur, hard variety of oak: see ROBUST6 any of several oak trees of the SW U.S.; esp., a tall, white oak (Quercus lobata) of California

Come again? What is the word, wwh? The name for this Quercus lobata? Obviously we wouldn't have this particular species of white oak in VA, but what is the name here? Oh!!! I see!! It's simply: roble but pronounced RO-blay. The RO-blay oak.

Never heard of it. Must google it.