Caragana arborescens - Siberian pea tree
The Siberian pea tree was brought to Finland in the 1740s. Pietari Kalm brought seed from St. Petersburg, thinking he was introducing a new edible plant, but the slightly poisonous pods make this species unsuitable. However, in recent times it has been widely used in gardens, parks, and at railway stations. It grows quite large and erect, with small leaves, and is at its best when it flowers in June with small yellow flowers typical of the pea family.