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Home Home » GENERA E-F » Encephalartos » Encephalartos trispinosus
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Encephalartos trispinosus

Encephalartos trispinosus
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  • Encephalartos transvenosus crown
  • Encephalartos transvenosus female cones
  • Encephalartos transvenosus leaf
  • Encephalartos transvenosus leaflets
  • Encephalartos transvenosus male cones
  • Encephalartos transvenosus releasing seeds
  • Encephalartos transvenosus stem tip
  • Encephalartos transvenosus young, female cones
  • Encephalartos trispinosus
  • Encephalartos trispinosus leaf
  • Encephalartos trispinosus sprouting leaves
  • Encephalartos villosus
  • Encephalartos villosus female cone
  • Encephalartos villosus female cones
  • Encephalartos villosus green, young and female
  • Encephalartos villosus leaf
  • Encephalartos villosus with decaying cone remains

Image information

Description

Encephalartos trispinosus, the Bushman’s River cycad, is a commonly grown smaller and variable cycad. Although slow growing, it is a popular clump-forming species that suckers much. 

The leaves are various shades of grey or blue-green, also varying in size. The bluish rachis tends to recurve and to have a twist somewhere close to the tip. The petiole lacks prickles. The leaflets are non-overlapping. They have up to two spine-tipped lobes on upper and median leaflets (and a terminal spine), giving rise to the trispinosus specific name. Leaflets close to the base are often smooth-edged with no spinal lobes. There is a form with leaflets markedly twisted, while other plants commonly have flat leaflets.

Cones of E. trispinosus are initially blue-green, gradually turning yellow or greenish yellow when they ripen in summer. They usually occur singly, although some pollen-bearing cone plants sometimes produce a couple of the narrow male cones. The seeds of this cycad are orange-red to red; the scales have a wrinkled appearance.

Its habitat is the Eastern Cape among arid scrub vegetation and rocky land in valleys of the Bushman’s River and the Great Fish River. It grows well in hot and dry climates, even where the winters are harsh.

 The species resembles E. horridus and E. lehmannii, both of which are grey-leaved (www.plantzafrica.com; www.wild-about-you.com; www.cycadpalm.com).

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Ivan Latti
Author
Ivan Latti
 
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