The specific name means “smooth stamens”.
A recently fertilised flower lies below the blossom.
Growing beside track leading to Ingraston, north of Dolphinton, South Lanarkshire.
Vibrant leaf colour develops in May as the flowers ripen to fruits.
Growing beside the old railway line near Ormiston, East Lothian.
Close-up of the flower centre.
The reproductive organs visible here include the purple anthers, split open and releasing spherical white pollen, and the rough recurved stigmatic arms.
Mature anthers fallen from filaments and stigmatic lobes expanding. A few pollen grains can be seen on the stigma.
In my mini-investigation of the floral parts of a few Geranium species, I've noticed that there are two sets of 5 stamens, the anthers on the inner ring releasing their pollen grains first.
Peering into the centre of a flower of Geranium endressii to see the divided orange stigma and pink-purple anthers.
The glandular hairs on the petiole and calyx of this young flower bud have a variety of different-coloured tips.
Showing the ring of fertile inner anthers.
A less common and distinctive species, with its sparsely hairy, shiny leaves which appear to be held almost vertically, and the somewhat inflated, ridged calyx.
A variety I grew in my garden for a number of years.
Peering into the centre of a flower of Herb Robert in the midst of releasing its pollen.
Fruits on dichotomous-branching pedicels.