Fig. 3 in Identification of anthocyanin and other flavonoids from the green-blue petals of Puya alpestris (Bromeliaceae) and a clarification of their coloration mechanism

Fig. 3. Green–blue flowers (A) and separated petals (B) of Puya alpestris. (For interpretation of the references to color in this figure legend, the reader is referred to the Web version of this article.)