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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. Cycads vary in size from having trunks only a few centimeters to several meters tall.
Encephalartos barteri is the only cycad species recorded in West Africa. Nigeria ... CITES and Cycads: a user’s guide. Royal Botanic Gardens, Kew: Kew Publishing. ...
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 ] As of April 2024, there are 119 accepted species within the genus Cycas , all of which are native to Asia , Oceania, and eastern Africa and the Indian ocean region, with the largest ...
Cardboard cycads can only be reproduced by the fleshy, brightly crimson-colored seeds produced by the female plants. The germination process is very slow and difficult to achieve in cultivation; as a result, many plants sold for horticultural use are illegally collected in the wild, leading to the species being classified as Endangered.
While there are more than 200 species of cycads, only one is native to Florida, and only a couple are popular landscaping plants in our area.
The morphology of leaflets is highly varied between even closely related species of Zamia, and within species and even within populations of a species. Studies have found that the amount of sun a plant is exposed to is responsible for differences in leaflet length, width, surface area, width ratio, shape, and density and thickness of leaflets.
Lepidozamia peroffskyana is a palm-like cycad in the Cardboard Palm Family Zamiaceae. It is endemic to eastern Australia, primarily near the coast of New South Wales. The species is named after Count Peroffsky (1794-1857), benefactor of the St. Petersburg Botanical Garden.
Cycads all over the world are in decline, with four species on the brink of extinction and seven species have fewer than 100 plants left in the wild. [2] 23,420 species of vascular plant have been recorded in South Africa, making it the sixth most species-rich country in the world and the most species-rich country on the African continent. Of ...