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Encephalartos laevifolius is a species of cycad that is found in the KwaZulu-Natal, Mpumalanga and Limpopo provinces of South Africa, [2] and at Piggs Peak in Eswatini. The species is facing extinction in the wild, but is widely cultivated. As of 2012, the Encephalartos laevifolius has been listed as critically endangered by the IUCN. [3]
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.
Hope's cycad is a tree reaching up to 20 m (66 ft) high and 50 cm (20 in) trunk diameter. It normally has a single trunk and crown, although forked trunks occur on occasions. The fronds may reach up to 3 m (9.8 ft) long with as many as 200 leaflets each.
Encephalartos altensteinii is a palm-like cycad in the family Zamiaceae. It is endemic to South Africa. The species name altensteinii commemorates Altenstein, a 19th-century German chancellor and patron of science. [4] It is commonly known as the breadtree, broodboom, Eastern Cape giant cycad or uJobane . [5]
This cycad contains reddish seed cones with a distinct acuminate tip. The leaves are 60–120 cm (2.0–3.9 ft) long, with 5-30 pairs of leaflets (pinnae). Each leaflet is linear to lanceolate or oblong-obovate, 8–25 cm long and 0.5–2 cm broad, with distinct teeth at the tip.
A specimen of L. hopei is known as the tallest living cycad at 17.5 m tall. These cycads are generally unbranched, tall, and with persistent leaf bases. They are easily cultivated as ornamental plants and are relatively cold hardy; L. peroffskyana was first described by a specimen grown at Saint Petersburg Botanical Garden in 1857.
The Zamiaceae are a family of cycads that are superficially palm or fern-like. They are divided into two subfamilies with eight genera and about 150 species in the tropical and subtropical regions of Africa, Australia and North and South America.
Macrozamia riedlei grows as a tree or trunkless low growing cycad (but is usually trunkless) [2] [4] attaining a height between 0.5–3.0 metres (1 ft 8 in – 9 ft 10 in). [2] Between 12 and 30 glossy mid- to dark-green leaves emerge from its crown, each reaching 1.2 to 2.2 metres (3 ft 11 in to 7 ft 3 in) long and bearing 92–150 pinnae. [ 4 ]