By jbuck (Jbuck) on Tuesday, June 7, 2016 - 08:47 am:
Here's a possible explanation for the pink:
Dr. Nancy Dengler, a botanist in the department of ecology and evolutionary biology at the University of Toronto, told me that when plants are under stress, they often produce reddish-purple pigments called anthocyanins.
Many other plants, however, make anthocyanins, which are powerful antioxidants, in response to the stresses of cold or drought and during the senescence (aging) of tissues. The pinkish colour plants develop as they make these pigments may be just a side effect, with their real purpose being to help protect tissues as the plants “work to recover the nutrients in the petals that they are ‘throwing away,’” Dengler said.
For the trillium, then, pink petals are the equivalent of metabolic business as usual. For the observer lucky enough to see a trillium with pink petals in the forest? Nothing short of a marvel.
By David C Cloutier (Dccloutier) on Wednesday, June 8, 2016 - 09:28 am:
JBuck:
Your explanation sounds correct. I have seen this same phenomenon in my own garden. We have some snowball bushes in the back yard that start out with brilliant white flowers, then as they grow older they gradually become pinkish before they whither and fall off..
By Deb S. (Usedtobeayooper) on Wednesday, June 8, 2016 - 10:20 am:
I love any kind of flower pictures and cloud
pictures!! Thanks!