The bushy stamens of the Common St. John’s Wort (Hypericum perforatum) are what really struck me as I walked past this flower. It’s quite tall but it looks like it has suffered a bit from the recent rain. It’s actually a 5-petal flower but the photo catches a rather dishevelled bloom.
It’s also known as Tipton’s weed or chase-devil. It’s an anti-depressant that you can buy, although it can poison cattle who ingest too much of it. The word wort was used to denote plants with medicinal qualities.