Sideroxylon spinosum, known as argan (Tashelhit: ⴰⵔⴳⴰⵏ, romanized: argan), synonym Argania spinosa, is a species of flowering plant. It is a tree native to the calcareous semi-desert Sous valley and to the Chiadma and Haha regions of Morocco, as well as some parts of Tindouf Province in southwestern Algeria, and also to Mauritania and Western Sahara. Argan trees grow to 8–10 m (26–33 ft) high and live up to approximately 200 years. They are thorny, with gnarled trunks and wide spreading crown. The crown has a circumference of up to 70 m (230 ft) and the branches may lean towards the ground.
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In this Dossier
Argania in the context of Sous
The Sous region (also spelt Sus, Suss, Souss or Sousse) (Arabic: سوس, romanized: sūs, Tachelhit: ⵙⵓⵙ, romanized: sus) is a geographical region which constitutes part of the region administration of Souss-Massa and Guelmim-Oued Noun in Morocco. The region is known for the endemic argan tree (which has become a symbol of Souss) as well as for being the capital of the Shilha Berber ethnic group. It is a major commercial and tourist agricultural region of Morocco. Vegetable production, shared between very large farms and small producers, contributes to the economic development of the region. The Souss plain produces 40% of Moroccan citrus fruits, and 60% of the production of early vegetables. It is historically a stage of trans-Saharan trade.
Argania in the context of Asterids
Asterids are a large clade (monophyletic group) of flowering plants, composed of 17 orders and more than 80,000 species, about a third of the total flowering plant species. The asterids are divided into the unranked clades lamiids (8 orders) and campanulids (7 orders), and the single orders Cornales and Ericales. Well-known asterids include dogwoods and hydrangeas (order Cornales), tea, blueberries, cranberries, kiwifruit, Brazil nuts, argan, sapote, and azaleas (order Ericales), sunflowers, lettuce, common daisy, yacon, carrots, celery, parsley, parsnips, ginseng, ivies, holly, honeysuckle, elder, and valerian (clade campanulids), borage, forget-me-nots, comfrey, coffee, frangipani, gentian, pong-pong, oleander, periwinkle, basil, mint, rosemary, sage, oregano, thyme, lavender, wild dagga, olives, ash, teak, foxgloves, lilac, jasmine, snapdragons, African violets, butterfly bushes, sesame, psyllium, potatoes, eggplants, tomatoes, chilli peppers, tobacco, petunias, morning glory, and sweet potato (clade lamiids).
Most of the taxa belonging to this clade had been referred to as Asteridae in the Cronquist system (1981) and as Sympetalae in earlier systems. The name asterids (not necessarily capitalised) resembles the earlier botanical name but is intended to be the name of a clade rather than a formal ranked name, in the sense of the ICBN.
Argania in the context of Ericales
The Ericales are a large and diverse order of flowering plants in the asterid group of the eudicots. Well-known and economically important members of this order include tea and ornamental camellias, persimmon, ebony, blueberry, cranberry, lingonberry, huckleberry, kiwifruit, Brazil nut, argan, sapote, azaleas and rhododendrons, heather, heath, impatiens, phlox, Jacob's ladder, primroses, cyclamens, shea, sapodilla, pouterias, and trumpet pitchers.
The order includes 22 families, according to the APG IV system of classification.