Table 2. The number of operational taxonomic units and phylogenetic diversity (PD) values for each sampled population of five Dactylorhiza species.
| Species | Population | Numberof OTUs | PDobs | PDnull |
| D. fuchsii | Hobokense Polder | 3 | 0.8220 | 0.4158 |
| Ter Yde 1 | 2 | 0.6341 | 0.2787 | |
| Torfbroek | 3 | 0.8284 | 0.4336 | |
| Baronville | 3 | 0.8284 | 0.4457 | |
| Han-Sur-Lesse | 4 | 1.1048 | 0.5513 | |
| D. incarnata | Westhoek | 3 | 0.8220 | 0.4144 |
| Oude Landen | 2 | 0.7581 | 0.2721 | |
| Ter Yde 2 | 4 | 0.8454 | 0.5561 | |
| Ekers Moeras | 3 | 0.8197 | 0.4292 | |
| Vaarttaluds | 3 | 0.7882 | 0.4347 | |
| D. maculata | Papendel 1 | 2 | 0.6254 | 0.2982 |
| Papendel 2 | 2 | 0.5991 | 0.3033 | |
| Tiendeberg | 2 | 0.5762 | 0.3082 | |
| De Zegge | 2 | 0.5942 | 0.3117 | |
| Vrieselhof | 2 | 0.5942 | 0.2848 | |
| Vorsdonkbos | 3 | 0.6580 | 0.4333 | |
| D. majalis | Buitengoor | 3 | 0.8070 | 0.4159 |
| Aadgat | 3 | 1.0515 | 0.4169 | |
| Leiemeeersen | 3 | 0.8284 | 0.4317 | |
| Malendriesbeekvallei | 6 | 1.1485 | 0.8143 | |
| Revogne | 5 | 0.8841 | 0.7292 | |
| Snoekengracht | 3 | 0.8197 | 0.4386 | |
| D. praetermissa | De Fonteintjes | 6 | 1.1485 | 0.8139 |
| Gavers | 2 | 0.7581 | 0.2943 | |
| Warandeduinen | 2 | 0.7751 | 0.3040 |