Flower Shot is a "photo-sharing service exclusively for flowers".
You can post and share your flower photos, and if a flower name is unknown, members can tell each other the name of the flower. Posted flower photos can be shared on Twitter and facebook.Flower Shot is available both as an Android App and in a Web version. Choose a version suitable for you; for example, you can use the Android App outside and switch to the Web version at home. Both are free.

*With the Android App, you can take flower photos with your Android device and process them to look more fun and pretty.
*With the Web version, you can post high-quality photos taken with your DSLR cameras, etc..

Details are here

androd market