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[[File:Map Glycine max.gif|thumb|distribution in Africa (planted)]][[File:Linedrawing Glycine max.gif|thumb|1, flowering branch; 2, fruiting branch; 3, seeds. Source: PROSEA]][[File:Glycine max 6633.jpg|thumb|field]][[File:Glycine max 3351.jpg|thumb|flowering branch]][[File:Glycine max 34.013.jpg|thumb|flowers]][[File:Glycine max 4505.jpg|thumb|young fruits]][[File:Glycine max LA 1-398.jpg|thumb|drying harvested plants]][[File:Glycine maxWAG9001130.jpg|thumb|soya bean products: bean curd, tempeh, oil, butter, dry seeds]]
<big>''[[Glycine max]]'' (L.) Merr.</big>
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{{DISPLAYTITLE:''Glycine max'' (PROTA)}}
:Protologue: Interpr. Herb. amboin. 274 (1917).
== Synonyms ==
*''Glycine hispida'' (Moench) Maxim. (1873).
== Vernacular names ==
*Soya bean, soybean (En). *Soja, soya (Fr). *Soja (Po). *Soya (Sw).
== Origin and geographic distribution ==
== Description ==
*Usually erect, bushy annual herb up to 2 m tall, sometimes viny; taproot branched, up to 2 m long, lateral roots spreading horizontally to a distance of up to 2.5 m in the upper 20 cm of the soil; stem brownish or greyish pubescent. *Leaves alternate, 3(–7)-foliolate; stipules broadly ovate, 3–7 mm long; petiole 2–20 cm long, especially in lower leaves; leaflets ovate to lanceolate, 3–15 cm × 2–6(–10) cm, base cuneate or rounded, apex acute to obtuse, entire, glabrous to pubescent. *Inflorescence an axillary false raceme up to 3.5 cm long, often compact, densely hairy, (2–)5–8(–35)-flowered. *Flowers bisexual, papilionaceous; pedicel up to 3 mm long; calyx tubular, with 2 upper and 3 lower lobes, hairy; corolla 5–7 mm long, white, pink, purple or bluish, standard obovate to rounded, c. 5 mm long, glabrous, wings obovate, keel shorter than the wings; stamens 10, 9 fused and 1 free; ovary superior, style curved with head-shaped stigma. *Fruit a slightly curved and usually compressed pod 2.5–8(–15) cm × 1–1.5 cm, hairy, dehiscent, (1–)2–3(–5)-seeded. *Seeds globose to ovoid or rhomboid, 6–11 mm × 5–8 mm, yellow, green, brown or black, or blotched and mottled in combinations of those colours; hilum small, black, brown or yellow. *Seedling with epigeal germination; cotyledons thick and fleshy, yellow or green; first leaves simple and opposite.
== Other botanical information ==
Plant Production Systems, Department of Plant Sciences, Wageningen University, P.O. Box 430, 6700 AK Wageningen, Netherlands
* K.E. Dashiell , USDA-ARS Northern Grains Insect Research Laboratory, 2923 Medary Avenue, Brookings SD 57006, United States
== Correct citation of this article ==
Giller, K.E. & Dashiell, K.E., 2007. '''Glycine max''' (L.) Merr. [Internet] Record from PROTA4U. In: van der Vossen, H.A.M. & Mkamilo, G.S. (Editors). PROTA (Plant Resources of Tropical Africa / Ressources végétales de l’Afrique tropicale), Wageningen, Netherlands. <http://www.prota4u.org/search.asp>. Accessed {{CURRENTDAY}} {{CURRENTMONTHNAME}} {{CURRENTYEAR}}.
