Sterile and non sterile dosage forms?

the flower is sterile

see the answer here: http://www.quebecfirstaid.com/sterileA.html

Sterility

Any body parts that are open to the outside or have normal flora for example: skin, mouth, GI tract, and upper respiratory tract..

One is guaranteed to have no microorganisms on it inside the sterile packaging, the other is clean but is not guaranteed to have no microorganisms on it.