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The Knobthorn (''Senegalia nigrescens'') is a deciduous African tree, growing up to 18 m tall, that is found in savanna regions from West Africa to South Africa. The tree is resistant to drought, not resistant to frost and its hard wood is resistant to termites.〔 Giraffes often browse on the flowers and foliage of this tree, while the seed pods and foliage are browsed on by a range of mammals, including elephant.〔 〕 ==Gallery== Acacia nigrescens, saamgestelde blare, Steenbokpan.jpg| Acacia nigrescens, bloeiwyse, Pretoria NBT.jpg| Acacia nigrescens, peule, Steenbokpan.jpg| Acacia nigrescens, knoppiesbas, Steenbokpan, a.jpg| 抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Senegalia nigrescens」の詳細全文を読む スポンサード リンク
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