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Cycads in South Africa. 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 ...
Cycads are long-lived and slow-growing, with slow recruitment and population turnover. [9] All cycads possess 'coralloid' (meaning coral-like) roots. These roots contain symbiotic cyanobacteria that fix gaseous nitrogen from the atmosphere and provide essential nitrogenous compounds to the plant. This can be a great advantage, as many cycads ...
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.
They are pinnately-veined, which distinguishes the species from all other cycads. The petiole comprises half the length of the leaf. The young leaves are bent in bud position, the tip appears rolled up. Young leaves are dotted with short, gray hairs , which usually fall off quickly and only stick to the petiole. These trichomes are unbranched ...
Mature plants have big stems of between 0.5–1 m (20–39 in) in length and 20–30 cm (8–12 in) in diameter [6] with the majority of the stem growing below ground. [4] Leaves are up to 1 m (39 in) long and often sharply recurved towards the tip, looking stiff and spiny. [5] Younger leaves are a silvery-blue colour but turn green with age. [6]
The Fix: If the leaves are falling over because of root rot or the plant is root-bound, repotting it is the best solution. "Snake plants should be repotted every three or four years," says Langelo.
It gets its name from the Latin word ferocious, likely from the spine-tipped lobes on the leaves of the plant. [3] It is found naturally on the south-eastern coast of Africa where it has been used by local people for its starch content. [4] It is considered to be one of the most popular cultivated cycads. [3]
The plant can survive up to USDA region 8b (10° to 20°F). The stems and leaves regenerate after the cold period subsides with full foliage. [8] [9] Like other cycads, Z. integrifolia is dioecious, having male or female plants. The male cones are cylindrical, growing to 5–16 cm long; they are often clustered.