Morphological features of A–C Senegalia sect. Monacanthea s.s. and D–J Senegalia sect. Senegalia A–C Senegalia ataxacantha (DC.) Kyal. & Boatwr. A lianescent shrub habit B branch showing internodal prickles C spicate inflorescence, Pretoria National Botanical Garden, South Africa D, E S. modesta (Wall.) P.J.H. Hurter D papery peeling bark on branch, living collection at Singapore Botanic Gardens E branch showing two prickles at nodes and leaves with few pinnae, Asia F S. catechu (L.f.) P.J.H. Hurter & Mabb. spicate inflorescence, South China Botanic Garden, Guangzhou G S. laeta (R. Br. ex Benth.) Seigler & Ebinger habit H S. senegal (L.) Britton three cauline prickles at nodes I S. goetzei (Harms) Kyal. & Boatwr. two cauline prickles at nodes and spicate inflorescence J S. polyacantha subsp. campylacantha (Hochst. ex A. Rich.) Kyal. and Boatwr. habit. Photo credits A P Birnbaum B S Piry C E Koenen D, E B Maslin F Y Chen G M Schmidt H A Dreyer I C Boucher Chisale J E Faust. A, B, G–J from African plants – A Photo Guide (www.africanplants.senckenberg.de).