Pam wrote:

It could be Lamiastrum galeobdolon, aka yellow archangel. It is a very
aggressive and invasive lamium relative that will rapidly colonize any
shady, moist area. See if this link looks anything like what your friend
has - if it does, she needs to get rid of it ASAP. Sorry - not the best
picture, but it gets the idea across.
http://www.suite101.com/userfiles/176/1-lam-gab-fl.jpg

She said that looks nothing like it. Although I think that plant is
somewhat pretty. Hmm.

She also said that the plant "looks like asparagus on the stalk"
although I am not entirely sure what she meant. It certainly isn't
ringing any bells with me.