the flower is sterile
see the answer here: http://www.quebecfirstaid.com/sterileA.html
As soon as you open a dry sterile container it is not sterile any more due to stuff falling on it. Studies do show that the longer a sterile field is exposed the higher rate of contamination. There...
Sterility
Any body parts that are open to the outside or have normal flora for example: skin, mouth, GI tract, and upper respiratory tract..