Tuesday 21 May
Purslane-leaved aizoon (Aizoon canariense)
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Purslane-leaved aizoon fact file
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Purslane-leaved aizoon description
A woody-stemmed plant, the purslane-leaved aizoon (Aizoon canariense) has characteristic zig-zagging branches which radiate from the centre of the plant in a star shape (3). This species is an annual or a perennial herb (1) (2) (3) (4) (5) which grows by creeping along the ground (1) (6). The purslane-leaved aizoon is covered in fine, velvety hairs (1) (2) (5).
The fleshy, bright green leaves of the purslane-leaved aizoon are approximately two centimetres in length, and have a slightly pointed tip, curled edges, and taper at the base (3).
The pentagonal or star-shaped fruit (2) of the purslane-leaved aizoon is usually red or pink (2) (7), and measures between five and nine millimetres in length (2) (6). The fruit is depressed in the centre (2) (6), and is capable of remaining on a dead plant for a long period of time (6).
- Length of stem: up to 40 cm (2)
Purslane-leaved aizoon biology
Little is known about the biology of the purslane-leaved aizoon; however, it is reported to flower at different times in different parts of its range. In the United Arab Emirates, the purslane-leaved aizoon flowers between January and June (3), while in Pakistan this species flowers between September and November (5).
The seeds of the purslane-leaved aizoon are known to be dispersed by the rain (9); as the seed capsule becomes wet, it opens up and the seed is then scattered by the rainfall (4). However, birds such as shrikes and kestrels are known to be predatory dispersers of a small percentage of purslane-leaved aizoon seeds (10).
Both the leaves and seeds of the purslane-leaved aizoon are eaten (2), with the leaves being used as a green salad (1) (3) or for porridge and soup (8). Bedouins grind and cook purslane-leaved aizoon seeds as a gruel (4). This species is also known to be used as feed for domestic animals (2) (8).Top
Purslane-leaved aizoon range
The purslane-leaved aizoon is common and widespread in the northern regions of the United Arab Emirates (3), and occurs in other parts of Asia, including Afghanistan, western Pakistan and southern Iran (1) (5).Top
Purslane-leaved aizoon habitat
Dry environments such as compact sand and gravel plains are the main habitat of the purslane-leaved aizoon (3) (6) (7) (8). This species is also often found on disturbed land (6), such as on roadsides and in cultivated grounds, as well as on rocky soils (2).
The purslane-leaved aizoon is mainly found in areas where rainfall occurs in the summer, although it is able to withstand a certain amount of winter rain (6). This species has also been recorded on offshore islands (3).Top
Purslane-leaved aizoon status
The purslane-leaved aizoon has not yet been classified on the IUCN Red List.Top
Purslane-leaved aizoon threats
There are currently no known threats to the purslane-leaved aizoon.Top
Purslane-leaved aizoon conservation
There are currently no conservation actions specifically targeting the purslane-leaved aizoon. However, this species is known to occur in Wadi El Gemal National Park in Egypt (8).Top
Find out more
For more information about conservation in the Emirates:
The Environment Agency - Abu Dhabi:
WWF - Major environmental threats in the UAE:
This information is awaiting authentication by a species expert, and will be updated as soon as possible. If you are able to help please contact:
- A plant that lives or grows for just one year.
- A small, non-woody, seed bearing plant in which all the aerial parts die back at the end of each growing season.
- A plant that normally lives for more than two years. After an initial period, the plant usually produces flowers once a year.
Tropicos - Missouri Botanical Garden (September, 2011)
Royal Botanic Gardens, Kew (April, 2012)
- Jongbloed, M.V.D. (2003) The Comprehensive Guide to the Wild Flowers of the United Arab Emirates. Environmental Research and Wildlife Development Agency, Abu Dhabi.
- Wickens, G.E. (1998) Ecophysiology of Economic Plants in Arid and Semi-Arid Lands. Springer, Berlin.
Flora of Pakistan - Aizoon canariense (April, 2012)
- Hartmann, H.E.K. (Ed.) (2002) Illustrated Handbook of Succulent Plants: Aizoaceae: A - E, Volume 1. Springer, Berlin.
- Miller, A.G., Cope, T.A., Nyberg, J.A., Royal Botanic Garden, Edinburgh, and Royal Botanic Gardens, Kew (1996) Flora of the Arabian Peninsula and Socotra, Volume 1. Edinburgh University Press, Edinburgh.
- Mahmoud, T. (2010) Desert Plants of Egypt’s Wadi El Gemal National Park. American University in Cairo Press, Cairo.
- Gutterman, Y. (2001) Regeneration of Plants in Arid Ecosystems Resulting from Patch Disturbance. Springer, Berlin.
- Padilla, D.P., González-Castro, A. and Nogales, M. (2012) Significance and extent of secondary seed dispersal by predatory birds on oceanic islands: the case of the Canary archipelago. Journal of Ecology, 100: 416-427.
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