Do Hazelnut Trees have Flowers ? The answer is YES !
Hazelnuts are monoecious , meaning they have separate male and female flowers on the same tree . Male and female flowers may bloom at different times .Hazelnuts are self-incompatible, which means a tree cannot set nuts with it’s own pollen .
1) Male Flowers
They are begin to form in Mid-May and begin to appear in June , but they do not reach maturity until December or January .
![](https://optolongfilter.com/app/uploads/2022/08/榛子花雄花.webp.webp)
2) Female Flowers
They begin to form at the end of June and beginning of July and are first seen in late November or early December . Female hazelnut flowers are very unusual.
![](https://optolongfilter.com/app/uploads/2022/08/榛子花雌花2.webp.webp)
What does hazelnut flower look like under a microscope ?
Here is an image of hazelnut male flower under the microscope . It was photographed by Quimica Tech .
![](https://optolongfilter.com/app/uploads/2022/08/Hazelnut-Flower-Optolong-1024x772.webp)
The fluorescence filter sets that Quimica used are Dual-band Green/Orange and Single-band FISHAqua in Optolong .
Details of filters in below :
![](https://optolongfilter.com/app/uploads/2022/08/7_7230P3NSVEHAL23QNH.png)
Another image that also photographed by Quimica Tech .
![](https://optolongfilter.com/app/uploads/2022/08/hazel-nuss-flower-dapi-lp-1024x772.webp)
The fluorescence filter set is DAPI longpass (LP-DAPI) in Optolong .
![](https://optolongfilter.com/app/uploads/2022/08/LP-DAPI.png)
![](https://optolongfilter.com/app/uploads/2022/08/Optolong-products-picture-922x1024.webp)
Reference:https://catalog.extension.oregonstate.edu/sites/catalog/files/project/pdf/em9074.pdf