Table 1.
Summary of plant species, sample sites and soil chemical properties.
| Species | Sample site | Geographic co-ordinates | pH (H20) | Soil chemical properties | ||
|---|---|---|---|---|---|---|
| NH4+ | P | Zn | ||||
| mg·kg−1 | ||||||
| Polhillia pallens | Witkoppies farm |
34° 33′ 53″ S 19° 59′ 43″ E |
4.45 ± 0.05 | 0.60 ± 0.00 | 43.50 ± 0.50 | 2.84 ± 0.17 |
| Wiborgia obcordata | Bushmans Kloof |
32° 07′ 14″ S 19° 06′ 28″ E |
4.33 ± 0.09 | 0.04 ± 0.01 | 6.00 ± 0.58 | 0.18 ± 0.01 |
| Wiborgia sericea | Travellers Rest farm |
32° 04′ 15″ S 19° 04′ 32″ E |
4.47 ± 0.09 | 0.03 ± 0.00 | 8.33 ± 0.33 | 0.66 ± 0.03 |
| Wiborgiella sessilifolia | Bredasdorp/Elim Pass |
34° 37′ 58″ S 19° 49′ 399″ E |
8.20 ± 0.00 | 0.67 ± 0.48 | 15.67 ± 0.33 | 0.41 ± 0.01 |