Christyl_Stevens - 8:09 am on Aug 3, 2010 (gmt 0)
Does the added text dilute the effect on the desired phrase green widgets?
Since Google gives you ranking consideration for the first eight words within your anchor text my best guess is that if your two word phrase is diluted by including five words then the dilution is very small. Small enough to not worry about it. Therefore, confidently include more anchor text where applicable.