Robert Herb (Geranium robertianum) has small pink flowers you can find from early spring to late autumn in shadowy places along footpaths, among stones and in woods.
Its leaves are as long as wide and have a typical not completely nice smell if you rub them between your fingers. Often they are tinged with red.
The fruits have the form of a stork's bill. When the seeds are ripening, the bill dries out and releases the seeds hidden at its base.