Elm and Hackberry Species Stock Video Footage

The genus is hermaphroditic, having apetalous perfect flowers which are wind-pollinated. Elm leaves are alternate, with simple, single- or, most commonly, doubly serrate margins, usually asymmetric at the base and acuminate at the apex. The fruit is a round wind-dispersed samara flushed with chlorophyll, facilitating photosynthesis before the leaves emerge. The samarae are very light, those of British elms numbering around 50,000 to the pound (454 g). All species are tolerant of a wide range of soils and pH levels but, with few exceptions, demand good drainage. The elm tree can grow to great height, often with a forked trunk creating a vase profile. 'Sapporo Autumn Gold', Antella, Florence Wych elm (Ulmus glabra) leaves and seeds Asymmetry of leaf, Slippery Elm U. rubra Mature bark, Slippery Elm U. rubra Flowers of the hybrid elm cultivar 'Columella' Corky wings, Winged Elm U. alata U. laciniata samara U. americana, Dufferin St., Toronto, c. 1914 Learn more about Elm and hackberry