This is St. John's wort (lat. Hypericum perforatum) whose photo I took near the road where I go to my weekend cottage.
It is natural remedy for depression, anxiety, wound healing, gastritis, stomach ulcer, menopausal symptoms, PMS, skin conditions (eczema, hemorrhoids), ...
From one fitotherapeut I heard that St. John's wort also has antitumor (anticancer) properties. And you can read more about it on these hyperlinks:
Review - Anti-Tumor Activity of Hypericum perforatum L. and Hyperforin through Modulation of Inflammatory Signaling, ROS Generation and Proton Dynamics
https://mdpi.com/2076-3921/10/1/18/pdf
Medical Attributes of St. John’s Wort (Hypericum perforatum)
https://ncbi.nlm.nih.gov/books/NBK92750/
St John’s Wort and Cancer
https://cancertherapyadvisor.com/home/tools/fact-sheets/st-johns-wort-and-cancer/
This photo is taken in city Prijedor, in Republic of Srpska, Bosnia and Herzegovina.
Photo is mine property and is shot with my micro 4/3 digital camera Nikon 1 J1.
You can use this photo for commercial purposes. No attribution required.