
(from the article `senna`) The bladder sennas (Colutea species) are Old World shrubs or small trees; their yellow flowers are followed by inflated pods. Scorpion senna ...
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http://www.britannica.com/eb/a-z/b/75

Bladder Senna (Colutea arborescens) is a much-branched leguminous shrub of Southern Europe with bladder-like pods and purgative properties. The leaves are pinnately divided, the rounded leaflets up to three centimetres long. The plant bears showy yellow flowers carried in loose stalked clusters arising from the leaf axils of young shoots.
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http://www.probertencyclopaedia.com/browse/BBA.HTM

[
n] - yellow-flowered European shrub cultivated for its succession of yellow flowers and very inflated bladdery pods and as a source of wildlife food
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http://www.webdictionary.co.uk/definition.php?query=bladder%20senna
Colutea arborescens noun yellow-flowered European shrub cultivated for its succession of yellow flowers and very inflated bladdery pods and as a source of wildlife food
Found on
https://www.encyclo.co.uk/local/20974
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