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        |  | Southern tropical thorn forests (scrub jungles) |  |  
    
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        |  | This forest type 
            is restricted to the rain shadow regions in Idukki and Palakkad districts. The 
            species are mostly xerophytic with short bole and low branching. The canopy is 
            wide open and the canopy level differentiation is not distinct. The hardwood 
            trees, thorny shrubs and climbers are characteristic features of the forest 
            type. The undergrowth is furnished with some herbaceous forms during monsoons 
            and remains exposed for the rest of the time.The major species representing the 
            forest type are Acacia spp., Albizia amara, Atalantia monophylla, Capparis 
            spp., Caralluma spp., Carissa carandas, Ceropegia juncea, Cordia spp., 
            Dichrostachys cinerea, Diospyros cordifolia, Euphorbia spp., Grewia spp., 
            Helixanthera spp., Opuntia spp., Pergularia daemia, Pisonia aculeata, 
            Pleiospermium alatum, Prosopis juliflora, Strychnos potatorum, Ziziphus 
            spp., etc. |  
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