Within FitDay.com, if you search on "fennel bulb raw", you will find multiple entries for various forms of the food; however, up top, you will notice that there are two entries for "fennel bulb raw" specifically, both differing ONLY in a comma placement:
Fennel bulb, raw (1 oz = 4.5 calories)
Fennel, bulb, raw (1 oz = 8.8 calories)
It wouldn't be so bad and I wouldn't care so long as the calories matched up in the serving size, but they don't. That's problematic and makes me question the validity of other entries or more common things, like green beans or lettuce, which are both so varied.