Oxypetalum, also known as Tweedia, has three colors of blue/ pink/ white in usual, and the most common one on the market is the blue Oxypetalum.
The whole plant of the Oxypetalum is covered with fine hairs, and should be very careful when handling it because the Oxypetalum will exude a white sap, which is sticky. If you accidentally touch the white sap, it will feel itchy and painful.
It is recommended to rinse the flower feet immediately after cutting the Oxypetalum, and try to use tools instead when removing the leaves. If you accidentally touch the white sap, rinse the water immediately to reduce itching and pain.
There are not many natural blue color flowers, especially this very ethereal blue is even rarer, so even if the Oxypetalum is more troublesome to handle and the price is expensive, there is still a certain market.