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Asystasia mysorensis (Roth) T.Anderson

Protologue  
 Journ. Linn. Soc., Bot. 9: 524 (1867).
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Family  
 Acanthaceae
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Synonyms  
 Asystasia schimperi T.Anderson (1864), Asystasia rostrata (Hochst. ex Nees) Solms (1867).
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Vernacular names  
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Origin and geographic distribution  
 Asystasia mysorensis occurs in central, eastern and southern Africa, from Ethiopia and Eritrea to Namibia and South Africa.
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Uses  
 The leaves and young shoots of Asystasia mysorensis, usually collected from the wild at the beginning of the rainy season, are eaten as a vegetable in Tanzania; they are sometimes available on local markets. They are eaten boiled, alone or mixed with e.g. cowpeas, tomatoes, onions, coconut milk, pounded oyster nuts (Telfairia pedata (Sm. ex Sims) Hook.) or groundnuts, and served with a staple food. Asystasia mysorensis is also useful as a fodder and potentially as an ornamental.
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Botany  
 Erect or scrambling annual herb up to 45 cm tall, shortly hairy. Leaves opposite, simple, petiolate; blade ovate to obovate, up to 6 cm × 2 cm, entire. Inflorescence a terminal spike up to 5 cm long; bracts enclosing the flowers, green, longer and wider than sepals. Flowers bisexual; sepals 5, linear; corolla tubular, c. 1.5 cm long, white with green spotted throat, 2-lobed, upper lobe again 2-lobed, lower one 3-lobed; stamens 4, anthers minutely mucronate at the base; ovary superior, 2-celled, hairy, style slender, stigmas 2. Fruit a stalked capsule c. 2 cm long, pubescent and bearing small glands, at maturity opening with 2 valves, 1–4-seeded. Seeds angular, supported by retinacula.
Asystasia comprises about 50 species, distributed in the Old World tropics, mostly in Africa. Asystasia mysorensis is related to the better known Asystasia gangetica (L.) T.Anderson, of which the leaves are also used as a vegetable and fodder, and which has numerous medicinal properties. Asystasia buettneri Lindau (synonyms: Asystasia calycina Benth., Asystasia dryadum S.Moore), distributed in West Africa from Guinea to Gabon, is used similarly as a vegetable in Gabon. A decoction of its leaves is used medicinally against headache and yaws and a poultice is applied against craw-craw sores (ulcers).
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Other botanical information  
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Ecology  
 Asystasia mysorensis occurs at forest edges, in thickets and secondary regrowth, and as a weed in fields. It is found in many soil types at altitudes up to 2200 m, in Tanzania in areas with an annual rainfall of 1000–2100 mm.
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Genetic resources and breeding  
 Asystasia mysorensis is common in its area of distribution and not in danger of genetic erosion.
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Prospects  
 Asystasia mysorensis will remain a minor vegetable of local importance.
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Major references  
 • Agnew, A.D.Q. & Agnew, S., 1994. Upland Kenya wild flowers: a flora of the ferns and herbaceous flowering plants of upland Kenya. 2nd Edition. East Africa Natural History Society, Nairobi, Kenya. 374 pp.
• Ruffo, C.K., Birnie, A. & Tengnäs, B., 2002. Edible wild plants of Tanzania. Technical Handbook No 27. Regional Land Management Unit/ SIDA, Nairobi, Kenya. 766 pp.
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Other references  
 • Meyer, P.G., 1968. Acanthaceae. Prodromus einer Flora von Südwestafrika. No 130. J. Cramer, Germany. 65 pp.
• Sri Endreswari, 2003. Asystasia Blume. In: Lemmens, R.H.M.J. & Bunyapraphatsara, N. (Editors). Plant Resources of South-East Asia No 12(3). Medicinal and poisonous plants 3. Backhuys Publishers, Leiden, Netherlands. pp. 86–88.
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Afriref references  
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Author(s)  
 
P.C.M. Jansen
PROTA Network Office Europe, Wageningen University, P.O. Box 341, 6700 AH Wageningen, Netherlands


Editors  
 
G.J.H. Grubben
Boeckweijdt Consult, Prins Hendriklaan 24, 1401 AT Bussum, Netherlands
O.A. Denton
National Horticultural Research Institute, P.M.B. 5432, Idi-Ishin, Ibadan, Nigeria
Associate editors  
 
C.-M. Messiaen
Bat. B 3, Résidence La Guirlande, 75, rue de Fontcarrade, 34070 Montpellier, France
R.R. Schippers
De Boeier 7, 3742 GD Baarn, Netherlands
General editors  
 
R.H.M.J. Lemmens
PROTA Network Office Europe, Wageningen University, P.O. Box 341, 6700 AH Wageningen, Netherlands
L.P.A. Oyen
PROTA Network Office Europe, Wageningen University, P.O. Box 341, 6700 AH Wageningen, Netherlands
Correct citation of this article  
 Jansen, P.C.M., 2004. Asystasia mysorensis (Roth) T.Anderson. [Internet] Record from PROTA4U. Grubben, G.J.H. & Denton, O.A. (Editors). PROTA (Plant Resources of Tropical Africa / Ressources végétales de l’Afrique tropicale), Wageningen, Netherlands. <http://www.prota4u.org/search.asp>. Accessed .



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General importance
Geographic coverage Africa
Geographic coverage World
Vegetables
Ornamental use
Forage/feed use
Food security



Asystasia mysorensis
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