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Cycads / ˈ s aɪ k æ d z / are seed plants that typically have a stout and woody trunk with a crown of large, hard, stiff, evergreen and (usually) pinnate leaves. The species are dioecious , that is, individual plants of a species are either male or female.
Cycas is a genus of cycad, and the only genus in the family Cycadaceae with all other genera of cycad being divided between the Stangeriaceae and Zamiaceae families. Cycas circinalis, a species endemic to India, was the first cycad species to be described in western literature, and is the type species of the genus. [4] [5]
Encephalartos is a genus of cycad native to Africa. Several species of Encephalartos are commonly referred to as bread trees, [2] bread palms [3] or kaffir bread, [4] since a bread-like starchy food can be prepared from the centre of the stem.
Encephalartos woodii, Wood's cycad, is a rare cycad in the genus Encephalartos, and is endemic to the oNgoye Forest of KwaZulu-Natal, South Africa. It is one of the rarest plants in the world, being extinct in the wild with all specimens being clones of the type . [ 2 ]
It is the largest of all cycads, with multiple stems both upright and prostrate, each as much as sixty feet (18 meters) in length, [3] and bearing a rosette of massive once-pinnate fronds up to 25 feet (eight meters) in length, forty inches (100 cm) in width, and with a petiole or stalk up to three inches (7.6 cm) thick where it joins the stem or trunk.
The cycad has tree-shaped trunks that grow up to 4 meters tall and 35 to 60 centimeters wide. Its open crown is woolly brown. The leaves, which are 1 to 1.5 meters long and 18 to 20 centimeters wide, spread horizontally from the trunk. They are stiff, straight, or slightly curved, with young leaves being silvery and becoming yellowish with age.
The cycad is a small tree, growing to about 10 m (33 ft) in height, with a trunk diameter of up to 40 cm (16 in). The bark is grey and distinctively fissured into rectangular, or diamond-shaped, segments.
This is a tall, tree-like cycad plant with a stem that can be upright or lying down, reaching up to 4.5 m (15 ft) in height and 30 and 45 cm (12–18 in) in diameter. Its bright green, feather-like leaves grow in a cluster at the top of the trunk, each leaf being 1–1.5 m (3.3–4.9 ft) long and supported by a 10–20 cm (4–8 in) long stalk ...