| Genus | Family | Order | Species | Genome length | Top marker | Markers | Primers | Action |
|---|---|---|---|---|---|---|---|---|
| Ilex | Aquifoliaceae | Aquifoliales | 101 | 157–158 kb | trnH-GUG-psbA (71.9) | 285 | 105 | View |
| Illicium | Schisandraceae | Austrobaileyales | 15 | 143–144 kb | petA-psbJ (74.9) | 253 | 85 | View |
| Illigera | Hernandiaceae | Laurales | 3 | 156–157 kb | psbZ-trnG-GCC (89.1) | 272 | 105 | View |
| Impatiens | Balsaminaceae | Ericales | 67 | 151–153 kb | atpH-atpI (89.3) | 272 | 70 | View |
| Incarvillea | Bignoniaceae | Lamiales | 2 | 159–159 kb | trnT-UGU-trnL-UAA (85.7) | 250 | 70 | View |
| Indigofera | Fabaceae | Fabales | 23 | 134–160 kb | atpH-atpF (95.4) | 267 | 90 | View |
| Indocalamus | Poaceae | Poales | 9 | 140–140 kb | atpH-atpI (51.7) | 268 | 90 | View |
| Indosasa | Poaceae | Poales | 8 | 140–140 kb | psbM-petN (57.9) | 261 | 85 | View |
| Inga | Fabaceae | Fabales | 2 | 175–176 kb | ccsA (81.8) | 284 | 55 | View |
| Inula | Asteraceae | Asterales | 4 | 151–151 kb | rpl2-trnH-GUG (80.5) | 266 | 75 | View |
| Iochroma | Solanaceae | Solanales | 8 | 157–157 kb | atpH-atpI (67.3) | 268 | 100 | View |
| Ipomoea | Convolvulaceae | Solanales | 20 | 161–163 kb | rpl32-trnL-UAG (81.9) | 269 | 100 | View |
| Iris | Iridaceae | Asparagales | 62 | 151–156 kb | petA-psbJ (78.4) | 272 | 85 | View |
| Isachne | Poaceae | Poales | 2 | 136–136 kb | rpl14-rpl16 (72.6) | 265 | 110 | View |
| Isatis | Brassicaceae | Brassicales | 9 | 153–157 kb | rpl32-trnL-UAG (79.7) | 270 | 80 | View |
| Iseilema | Poaceae | Poales | 7 | 140–140 kb | psbE-petL (62.5) | 267 | 95 | View |
| Isodon | Lamiaceae | Lamiales | 86 | 152–153 kb | petN-psbM (71.1) | 272 | 90 | View |
| Isoetes | Isoetaceae | Isoetales | 53 | 143–146 kb | ndhF-chlN (74.7) | 266 | 85 | View |
| Itea | Iteaceae | Saxifragales | 2 | 160–161 kb | ndhH (82.0) | 273 | 85 | View |
| Ivesia | Rosaceae | Rosales | 2 | 156–156 kb | ycf1-ndhF (90.6) | 269 | 95 | View |
| Ixeris | Asteraceae | Asterales | 2 | 153–153 kb | trnH-GUG-psbA (83.6) | 273 | 95 | View |
| Ixora | Rubiaceae | Gentianales | 3 | 155–155 kb | trnH-GUG-psbA (77.9) | 266 | 95 | View |
