Some flowers change color as they age. Some trilliums, honeysuckles, and vetches do. Wood sage can go from pink to straw colored. Could it be because of its complicated chemistry? This is a plant organic chemists and herbalists could love. It's full of diturpinoids, flavinoids, tannins, bitter aromatics, volatile oils, and saponins. Whatever all those are. I know from sophomore year that I don't love organic chem. Should have taken botany. No, wait! They have to learn biochem too. How one becomes a social worker. What a Saturday morning ramble this was!