A family of deciduous trees which comprises only 1 genus, Platanus. Plane trees have flaking bark, buds enclosed in petiole bases, and alternate, stipulate, palmately lobed leaves. The flowers are tiny, in several globular heads arranged along a stalk and forming a catkin, each catkin either of male or female flowers. Male flowers each have 3–5 stamens within a tiny cup, female flowers have 5–9 carpels in a calyx cup. Numerous hairs surround the nutlets in the globular fruiting heads. There are some 6 species in south-eastern Europe, south-western Asia, and N. America. They are much planted, especially in towns.
Subjects: Plant Sciences and Forestry.