Blue Butterfly Pea blossoms (อัญชัน - an-chan). The scientific name of this plant is indecent language. Do your own research if you really want to know. Grows on nearly every type of soil. Needs a lot of sun. A cold infusion maintains this flashy blue colour. The hot infusion changes the colour towards navy blue. The pure unmixed taste is somewhat dull, mildly floral and sweetish, slightly grassy. This, however, goes very well with a moderate amount of lemon grass or ginger.