| Genus | Family | Order | Species | Genome length | Top marker | Markers | Primers | Action |
|---|---|---|---|---|---|---|---|---|
| Pleurozia | Pleuroziaceae | Pleuroziales | 3 | 118–118 kb | psbA-trnH-GUG (79.3) | 268 | 95 | View |
| Plicosepalus | Loranthaceae | Santalales | 2 | 120–121 kb | psbA-matK (84.1) | 209 | 75 | View |
| Plinia | Myrtaceae | Myrtales | 2 | 159–160 kb | rps8-rpl14 (72.1) | 276 | 100 | View |
| Pluchea | Asteraceae | Asterales | 2 | 152–152 kb | rpl2-DXZ06_pgt001 (71.2) | 259 | 80 | View |
| Plumbago | Plumbaginaceae | Caryophyllales | 3 | 169–169 kb | ndhF-rpl32 (81.9) | 271 | 65 | View |
| Plumeria | Apocynaceae | Gentianales | 3 | 154–154 kb | ndhD-psaC (68.5) | 269 | 90 | View |
| Poa | Poaceae | Poales | 8 | 135–136 kb | psbE-petL (69.7) | 265 | 100 | View |
| Podocarpus | Podocarpaceae | Araucariales | 6 | 134–134 kb | rrn16-trnV-GAC (89.6) | 243 | 80 | View |
| Pogonia | Orchidaceae | Asparagales | 2 | 158–158 kb | ndhA (65.6) | 266 | 80 | View |
| Pogostemon | Lamiaceae | Lamiales | 5 | 152–153 kb | ndhD-psaC (78.7) | 271 | 90 | View |
| Pohlia | Mniaceae | Bryales | 3 | 125–125 kb | trnK-UUU-chlB (82.4) | 255 | 100 | View |
| Poikilospermum | Urticaceae | Rosales | 2 | 154–154 kb | trnH-GUG-psbA (68.1) | 266 | 100 | View |
| Poilannammia | Melastomataceae | Myrtales | 2 | 157–157 kb | psbT-pbf1 (88.8) | 265 | 100 | View |
| Pollia | Commelinaceae | Commelinales | 2 | 164–165 kb | trnP-UGG-psaJ (83.5) | 274 | — | View |
| Polygala | Polygalaceae | Fabales | 7 | 164–165 kb | atpH-atpI (85.6) | 279 | 95 | View |
| Polygonatum | Asparagaceae | Asparagales | 54 | 154–156 kb | rps19-psbA (80.5) | 270 | — | View |
| Polygonum | Polygonaceae | Caryophyllales | 12 | 159–163 kb | trnE-UUC-trnT-GGU (77.8) | 266 | 105 | View |
| Polyopes | Halymeniaceae | Halymeniales | 3 | 196–202 kb | ycf80-trnR-CCG (86.8) | 458 | 85 | View |
| Polyspora | Theaceae | Ericales | 9 | 156–157 kb | ndhA (57.8) | 273 | 90 | View |
| Polystachya | Orchidaceae | Asparagales | 5 | 145–149 kb | clpP-psbB (88.6) | 260 | 75 | View |
| Polystichum | Dryopteridaceae | Polypodiales | 4 | 149–150 kb | trnT-GGU-rps14 (84.8) | 206 | 100 | View |
| Pomatocalpa | Orchidaceae | Asparagales | 2 | 147–148 kb | psaC-ndhD (83.2) | 252 | 70 | View |
| Pontederia | Pontederiaceae | Commelinales | 26 | 102–164 kb | petA-psbJ (90.7) | 270 | 80 | View |
| Populus | Salicaceae | Malpighiales | 57 | 155–158 kb | ndhC-trnV-UAC (73.7) | 258 | 95 | View |
| Porella | Porellaceae | Porellales | 3 | 121–122 kb | trnE-UGA-trnT-GGU (82.4) | 270 | 75 | View |
| Porosira | Thalassiosiraceae | Thalassiosirales | 2 | 127–131 kb | rns-trnI-GAU (84.0) | 356 | 70 | View |
| Porphyra | Bangiaceae | Bangiales | 2 | 190–191 kb | ORF621 (80.5) | 496 | 95 | View |
| Portulaca | Portulacaceae | Caryophyllales | 3 | 152–157 kb | psbI-trnS-GCU (84.4) | 261 | 80 | View |
| Potamogeton | Potamogetonaceae | Alismatales | 5 | 156–156 kb | petN-psbM (73.2) | 266 | 100 | View |
| Potentilla | Rosaceae | Rosales | 95 | 153–157 kb | trnT-UGU-trnL-UAA (83.3) | 268 | 95 | View |
| Pothos | Araceae | Alismatales | 2 | 165–165 kb | trnM-CAU-atpE (82.8) | 267 | 100 | View |
| Pourthiaea | Rosaceae | Rosales | 8 | 160–160 kb | rps19-trnH-GUG (79.9) | 267 | 85 | View |
| Pouteria | Sapotaceae | Ericales | 3 | 158–159 kb | petA-psbJ (82.0) | 269 | 100 | View |
| Pouzolzia | Urticaceae | Rosales | 3 | 153–159 kb | trnF-GAA-ndhJ (87.8) | 273 | 85 | View |
| Prangos | Apiaceae | Apiales | 2 | 154–154 kb | rpl2-trnH-GUG (74.1) | 268 | 100 | View |
| Pratia | Campanulaceae | Asterales | 2 | 165–165 kb | psbA-rbcL (80.1) | 283 | 75 | View |
| Premna | Lamiaceae | Lamiales | 4 | 153–155 kb | atpH-atpI (74.8) | 273 | 105 | View |
| Primula | Primulaceae | Ericales | 103 | 150–155 kb | trnE-UUC-trnT-GGU (86.6) | 270 | 100 | View |
| Primulina | Gesneriaceae | Lamiales | 22 | 152–154 kb | petB-petD (82.7) | 272 | 95 | View |
| Prinsepia | Rosaceae | Rosales | 3 | 156–159 kb | rpl2-trnH-GUG (86.6) | 263 | 105 | View |
| Prioria | Fabaceae | Fabales | 2 | 160–161 kb | trnT-UGU-trnL-UAA (88.9) | 267 | 100 | View |
| Pristimera | Celastraceae | Celastrales | 3 | 157–159 kb | trnD-GUC-trnY-GUA (84.3) | 273 | 100 | View |
| Pritchardia | Arecaceae | Arecales | 2 | 158–158 kb | psaC-ndhE (68.2) | 271 | 80 | View |
| Procris | Urticaceae | Rosales | 3 | 154–154 kb | psbC-trnS-UGA (92.8) | 271 | 90 | View |
| Prosopis | Fabaceae | Fabales | 2 | 163–164 kb | atpF-atpH (91.2) | 265 | 95 | View |
| Prostanthera | Lamiaceae | Lamiales | 4 | 153–153 kb | rpl23-trnI-CAU (85.8) | 273 | 75 | View |
| Protea | Proteaceae | Proteales | 2 | 158–159 kb | trnH-GUG-psbA (72.6) | 278 | 95 | View |
| Prunella | Lamiaceae | Lamiales | 2 | 151–151 kb | trnG-GCC-trnfM-CAU (61.4) | 270 | 115 | View |
| Prunus | Rosaceae | Rosales | 120 | 157–159 kb | trnT-GGU-psbD (68.5) | 267 | 90 | View |
| Psathyrostachys | Poaceae | Poales | 2 | 137–137 kb | psbT-psbN (87.5) | 267 | 85 | View |