Flowers usually have four distinct parts: petals, sepals, stamens and pistils. The petals are usually colorful and attract pollinators. The sepals are green and protect the flower bud. The stamens are ...
Scientists discovered that the red stigmas in wind-pollinated trees accumulate anthocyanin, the same compounds that are revealed in autumn leaves after green chlorophyll production slows down and ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results
Feedback