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African Apiaceae: A synopsis of the Apiaceae / Umbelliferae of Sub-Saharan Africa and Madagascar
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Aquatic and Wetland Plants of Southern Africa
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Bome van plek tot plek in die Nasionale Krugerwildtuin
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Companion Planting
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Creative Gardening with Indigenous Plants
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Cut Flowers of the World
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Fotogids tot die bome van Suider-Afrika
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Fynbos – Ecology and Management
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Fynbos – Ekologie en Bestuur
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Guide to the Aloes of South Africa
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Mind-altering & Poisonous Plants of the World
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Photo Guide to the trees of Southern Africa
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Problem Plants and Alien Weeds of Southern Africa
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Remarkable Trees of South Africa
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The Complete Grower’s Guide to Carnivorous Plants
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The Lavender Book
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The Lycopods and Ferns of the Drakensberg and Lesotho
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Trees of the Garden route