[Dixonary] Aitches, cont.

[Dodi Schultz]

>> What about "herbaceous"?

In AmE, John, the "h" is normally pronounced.

--Dodi

[Lindsey]

In AmE, John, the "h" is normally pronounced.
But not always, and "herbaceous" is pronounced both ways in American English. See http://www.bartleby.com/64/C007/0104.html and http://www.bartleby.com/64/C007/099.html#H.

--Lindsey