In message , P. van
Rijckevorsel writes
"mel turner" schreef

http://www.google.com/search?hl=en&l...salvia+verbena
cea%22&btnG=Search

http://www.google.com/search?hl=en&l...salvia+verbena
ca%22&btnG=Search

One question seems to be which is the correct spelling of the
specific epithet. Both seem to be widely used.

***
There are 19 600 Google hit for the one versus 412 for the other.
I'd say that is pretty overwhelming in favor of the one spelling
PvR



USDA has verbenacea as an orthographic variant.

http://plants.usda.gov/java/profile?symbol=SAVE12
--
Stewart Robert Hinsley