The following is a list of the collections made by van Niekerk in species name order. The records are of species which occur in Democratic Republic of the Congo (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 |
| 130672 | Asclepias grandirandii | 7 Nov 2025 | N Wightman W van Niekerk |
N Wightman W van Niekerk NCW1496 | DJ Goyder | K |
Open wooded grassland plain margin | Mwinilunga District, North-Western Province | 0 | Zambia | 1124C2 | W | 1410 | -11.696780 | 24.273660 | 6 | |||||
| 130663 | Bidens moorei | 8 Nov 2025 | N Wightman W van Niekerk |
N Wightman W van Niekerk NCW1501 | N Wightman | K NDO ZAHBRI |
Miombo woodland slope | Mwinilunga District, North-Western Province | 0 | Zambia | 1124C2 | W | 1331 | -11.714170 | 24.354130 | 6 | |||||
| 128291 | Blepharis tenuiramea | 25 May 2023 | N Wightman I Kabinda W van Niekerk |
N Wightman I Kabinda W van Niekerk NCW955 | KB Vollesen | K |
Miombo woodland | Kaputa GMA, Nsama Dist., Northern Province | 0 | Zambia | 0830C1 | N | 1084 | 6 | |||||||
| 120967 | Bonamia spectabilis | 30 May 2023 | N Wightman I Kabinda W van Niekerk M Mwale M Mufuka |
N Wightman I Kabinda W van Niekerk M Mwale M Mufuka NCW994 | N Wightman | K NDO |
Degraded Itigi thicket cleared for agriculture | Kaputa GMA, Nsama District, Northern Province | 0 | Zambia | 0829D2 | N | 1044 | -8.714525 | 29.876161 | 6 | |||||
| 124099 | Cabobanthus polysphaerus | 30 Mar 2024 | N Wightman J Alfonsi I Kabinda W van Niekerk M Kaluwe |
N Wightman J Alfonsi I Kabinda W van Niekerk M Kaluwe NCW1179 | N Wightman | K ZAHBRI |
Brachystegia woodland | Tondwa GMA, Nsama District, Northern Province, Zambia | 0 | Zambia | 0830C1 | N | 1072 | -8.608560 | 30.214660 | 6 | |||||
| 128833 | Ensete homblei | 21 May 2025 | N Wightman W van Niekerk |
N Wightman W van Niekerk NCW1464 | N Wightman | ZAHBRI |
Termitaria within degraded miombo woodland | Mwinilunga District, North-Western Province, Zambia | 0 | Zambia | 1124C2 | W | 1479 | 6 | |||||||
| 131396 | Eulophia arenicola | 16 Nov 2025 | N Wightman W van Niekerk |
N Wightman W van Niekerk NCW1510 | B Bytebier | NU ZAHBRI |
Degraded miombo woodland | Mushindamo District, North-Western Province | 0 | Zambia | 1226B4 | W | 1371 | 6 | |||||||
| 124078 | Hibiscus calyphyllus | 30 Mar 2024 | N Wightman J Alfonsi I Kabinda W van Niekerk M Kaluwe |
N Wightman J Alfonsi I Kabinda W van Niekerk M Kaluwe NCW1182 | N Wightman | K ZAHBRI |
Termitaria within Brachystegia woodland | Tondwa GMA, Nsama District, Northern Province, Zambia | 0 | Zambia | 0830C1 | N | 1072 | -8.608560 | 30.214660 | 6 | |||||
| 124079 | Hibiscus debeerstii | 2 Apr 2024 | N Wightman J Alfonsi I Kabinda W van Niekerk M Kaluwe |
N Wightman J Alfonsi I Kabinda W van Niekerk M Kaluwe NCW1199 | KB Vollesen | K ZAHBRI |
Margin of Itigi thicket and woodland | Kaputa GMA, Nsama District, Northern Province, Zambia | 0 | Zambia | 0829D2 | N | 1032 | -8.635339 | 29.964839 | 6 | |||||
| 128840 | Hypoestes aristata | 26 Mar 2025 | N Wightman W van Niekerk |
N Wightman W van Niekerk NCW1438 | N Wightman | K ZAHBRI |
Riverine fringe forest on small riverine island | Chililabombwe District, Copperbelt Province, Zambia | 0 | Zambia | 1227B4 | W | 1318 | -12.317520 | 27.855330 | 6 | |||||
| 124081 | Lepidagathis fischeri | 1 Apr 2024 | N Wightman J Alfonsi I Kabinda W van Niekerk M Kaluwe |
N Wightman J Alfonsi I Kabinda W van Niekerk M Kaluwe NCW1192 | N Wightman | I Darbyshire | K ZAHBRI |
Brachystegia woodland | Tondwa GMA, Nsama District, Northern Province, Zambia | 0 | Zambia | 0830C1 | N | 1075 | -8.609680 | 30.216520 | 6 | ||||
| 124082 | Napoleonaea gossweileri | 25 Apr 2024 | N Wightman W van Niekerk M Kaluwe |
N Wightman W van Niekerk M Kaluwe NCW1301 | N Wightman | K ZAHBRI |
Kalahari woodland | Mawela, Senanga District, Western Province Zambia | 0 | Zambia | 1623A2 | B | 1045 | -16.024280 | 23.370931 | 6 | |||||
| 128682 | Ozoroa kassneri var. kassneri | 23 May 2023 | N Wightman I Kabinda W van Niekerk |
N Wightman I Kabinda W van Niekerk NCW929 | N Wightman | KB Vollesen | K ZAHBRI |
Chipya woodland | Kaputa GMA, Nsama Dist., Northern Province | 0 | Zambia | 0830C2 | N | 973 | 6 | ||||||
| 124070 | Pavetta radicans | 4 Apr 2024 | N Wightman J Alfonsi I Kabinda W van Niekerk M Kaluwe |
N Wightman J Alfonsi I Kabinda W van Niekerk M Kaluwe NCW1224 | N Wightman | K ZAHBRI |
Brachystegia woodland | Tondwa GMA, Nsama District, Northern Province, Zambia | 0 | Zambia | 0830C1 | N | 1059 | -8.605970 | 30.206310 | 6 | |||||
| 121026 | Phytolacca dodecandra | 30 May 2023 | N Wightman I Kabinda W van Niekerk M Mwale M Mufuka |
N Wightman I Kabinda W van Niekerk M Mwale M Mufuka NCW995 | N Wightman | K NDO |
Degraded Itigi thicket cleared for agriculture | Kaputa GMA, Nsama District, Northern Province | 0 | Zambia | 0829D2 | N | 1044 | -8.714525 | 29.876161 | 6 | |||||
| 126255 | Polystachya zambesiaca | 7 Oct 2024 | N Wightman W van Niekerk B Mungoli |
N Wightman W van Niekerk B Mungoli NCW1335 | N Wightman | B Bytebier | ZAHBRI |
Epiphytic on Afzelia quanzensis over rocky granite outcrop | Zambezi Rapids, c. 5 km N of Kalene Hill, Ikelenge District, North-Western Prov., Zambia | 115 | 0 | Zambia | 1124A1 | W | 1221 | 6 | |||||
| 121027 | Pseudocalyx saccatus | 30 May 2023 | N Wightman I Kabinda W van Niekerk M Mwale M Mufuka |
N Wightman I Kabinda W van Niekerk M Mwale M Mufuka NCW996a | N Wightman | K NDO |
Degraded Itigi thicket cleared for agriculture | Kaputa GMA, Nsama District, Northern Province | 0 | Zambia | 0829D2 | N | 1044 | -8.714525 | 29.876161 | 6 | |||||
| 124092 | Striga gesnerioides | 18 Apr 2024 | N Wightman W van Niekerk M Kaluwe |
N Wightman W van Niekerk M Kaluwe NCW1273 | N Wightman | K |
Kalahari scrubland (degraded by agricultural activity) | Iluando, Sesheke District, Western Province, Zambia | 0 | Zambia | 1724A1 | B | 1022 | -17.157901 | 24.049079 | 6 | |||||
| 128848 | Triumfetta glechomoides | 6 Mar 2025 | N Wightman W van Niekerk |
N Wightman W van Niekerk NCW1418 | N Wightman | K ZAHBRI |
Regrowth miombo woodland | Chililabombwe District, Copperbelt Province, Zambia | 0 | Zambia | 1227B4 | W | 1322 | -12.334460 | 27.801750 | 6 | |||||
| 124100 | Vitex madiensis subsp. milanjiensis | 30 Mar 2024 | N Wightman J Alfonsi I Kabinda W van Niekerk M Kaluwe |
N Wightman J Alfonsi I Kabinda W van Niekerk M Kaluwe NCW1184 | N Wightman | K ZAHBRI |
Brachystegia woodland | Tondwa GMA, Nsama District, Northern Province, Zambia | 0 | Zambia | 0830C1 | N | 1072 | -8.608170 | 30.214115 | 6 | |||||
| 128690 | Xylopia odoratissima | 30 May 2023 | N Wightman I Kabinda W van Niekerk |
N Wightman I Kabinda W van Niekerk NCW992 | KB Vollesen | K ZAHBRI |
Degraded escarpment deciduous woodland | Kaputa GMA, Nsama Dist., Northern Province | 0 | Zambia | 0829D2 | N | 1023 | 6 |