The following is a list of the collections made by van Rensburg in species name order. The records are of species which occur in Angola (either as a native/naturalised species or as a cultivated species).
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| No | Species | Record date | Recorder(s) | Coll. | Det. | Conf. | Herbaria | Habitat | Location | Loc code | Outing code | Planted code | Country | QDS | Grid ref. | FZ Div | Alt. (m) | Notes | Lat | Long | Loc Acc Code |
| 80766 | Acacia polyacantha subsp. campylacantha | 1 Mar 1963 | HJ van Rensburg |
HJ van Rensburg 1540 | Drainage line on black clay and loam soils. | Between Mazabuka and Kafue. | 0 | Zambia | 1527D4 | S | 0 | Tree ca. 40 ft. tall. Locally abundant with other Acacia spp., Piliostigma and Ziziphus. | -15.816667 | 27.966667 | 5 | ||||||
| 80767 | Acacia polyacantha subsp. campylacantha | 15 Oct 1963 | HJ van Rensburg |
HJ van Rensburg 2535 | On heavy black clay and clay loam soil. | Namwala, on Naminwe Plain between Boambwe and Maala. | 0 | Zambia | 1526C4 | S | 0 | White flowered Acacia to 40 ft. high. | -15.750000 | 26.450000 | 5 | ||||||
| 85046 | Bulbostylis hispidula | 21 Feb 1963 | HJ van Rensburg |
HJ van Rensburg 1402 | EA Robinson | MRSC |
Miombo woodland on light sandy soil | Brachystegia woodland | 0 | Zambia | S | 0 | 0 | ||||||||
| 85047 | Bulbostylis hispidula | 14 Jan 1963 | HJ van Rensburg |
HJ van Rensburg 1199 | MRSC |
Miombo woodland on light sandy soil | Mochipapa | 0 | Zambia | S | 0 | 0 |