| Halimium |
Halimium atriplicifolium subsp. atriplicifolium
Halimium umbellatum subsp. viscosum
| Hedisarum |
Hedysarum boveanum subsp. europaeum
| Helianthemum |
Helianthemum alypoides
Helianthemum ledifolium
Helianthemum neopiliferum
Helianthemum squamatum
| Helianthus |
Helianthus tuberosus
| Heliotropium |
Heliotropium europaeum
Heliotropium supinum
| Helleborus |
Helleborus foetidus
| Helminthotheca |
Helminthotheca echioides
| Hesperis |
Hesperis laciniata
| Hippocrepis |
Hippocrepis bourgaei
Hippocrepis castroviejoi
Hippocrepis prostrata
| Hormathophylla |
Hormathophylla longicaulis
| Hyacinthoides |
Hyacinthoides hispanica
| Hymenostemma |
Hymenostemma pseudoanthemis
| Hyoscyamus |
Hyoscyamus albus
Hyoscyamus niger
| Hypericum |
Hypericum elongatum subsp. callithyrsum
Hypericum perfoliatum
| Hyssopus |
Hyssopus officinalis subsp. pilifer
