Arendse C. J. & Russell I. A. (2020) Morphometric regressions for the endangered Knysna seahorse, Hippocampus capensis, in the Swartvlei Estuary form mass stranding events Koedoe 62: 1–6

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Audouin M., Le Maître D., Kotzee I., Kellerman L. & Forsyth G. (2019) Development of an Ecological Infrastructure Investment Framework (EIIF) and an Alien Invasive Species Strategy (AISS) for the Western Cape Province: Catchment Prioritisation Report CSIR

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Baard J. A. & Kraaij T. (2014) Alien flora of the Garden Route National Park, South Africa South African Journal of Botany 94: 51–63

Keywords: Invasive alien plants, Checklist, Exotic plants, Forest, Fynbos shrublands, Naturalised, Non-native, Invader, Inventory, Protected area, Southern Cape, Weeds