No, it's not urban slang, but since the online dictionary everyone uses to try and look these things up doesn't have an entry, I'll define it here.

Phytophiliac (n.) someone who demonstrates phytophilia -- a sexual attraction to plants.
1: "Lou is such a tree-hugger..."

2: "damn phytophiliacs"

1: "LOL"
by nerd January 9, 2005
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