Noun | 1. | ![]() genus Platanus, Platanus - genus of large monoecious mostly deciduous trees: London plane; sycamore lacewood, sycamore - variably colored and sometimes variegated hard tough elastic wood of a sycamore tree London plane, Platanus acerifolia - very large fast-growing tree much planted as a street tree American plane, American sycamore, buttonwood, Platanus occidentalis - very large spreading plane tree of eastern and central North America to Mexico oriental plane, Platanus orientalis - large tree of southeastern Europe to Asia Minor California sycamore, Platanus racemosa - tall tree of Baja California having deciduous bark and large alternate palmately lobed leaves and ball-shaped clusters of flowers Arizona sycamore, Platanus wrightii - medium-sized tree of Arizona and adjacent regions having deeply lobed leaves and collective fruits in groups of 3 to 5 tree - a tall perennial woody plant having a main trunk and branches forming a distinct elevated crown; includes both gymnosperms and angiosperms |