Q: My son gave me a plant called evening primrose this past spring. He got it from a neighbor. It blooms yellow over about 6 weeks, but each flower only lasts one evening and then dies. Hummingbird ...
The research, involving primroses and hawk moths, suggests that air pollution could be interfering with plant reproduction. A white-lined sphinx pollinating a pale evening primrose flower.Credit...Ron ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results