| Family | subfamily | Genus | Species | |
|---|---|---|---|---|
| Urticaceae | Forsskaolea L. | Forsskaolea tenacissima L. | Details | |
| Frankeniaceae | Frankenia L. | Frankenia hirsuta L. | Details | |
| Frankeniaceae | Frankenia L. | Frankenia pulverulenta L. | Details | |
| Cyperaceae | Fuirena Rottb. | Fuirena pubescens (Poir.) Kunth | Details | |
| Cyperaceae | Fuirena Rottb. | Fuirena ciliaris (L.) Roxb. | Details | |
| Cistaceae | Fumana (Dunal) Spach | Fumana arabica (L.)Spach | Details | |
| Cistaceae | Fumana (Dunal) Spach | Fumana thymifolia (L.)Spach ex Webb | Details | |
| Papaveraceae | Fumarioideae | Fumaria L. | Fumaria densiflora DC. | Details |
| Papaveraceae | Fumarioideae | Fumaria L. | Fumaria parviflora Lam. | Details |
| Papaveraceae | Fumarioideae | Fumaria L. | Fumaria bracteosa Pomel | Details |
| Papaveraceae | Fumarioideae | Fumaria L. | Fumaria judaica Boiss. subsp. judaica | Details |
| Papaveraceae | Fumarioideae | Fumaria L. | Fumaria officinalis L. | Details |
| Liliaceae | Lilioideae | Gagea Salisb. | Gagea dayana Chodat & Beauvard | Details |
| Liliaceae | Lilioideae | Gagea Salisb. | Gagea fibrosa (Desf.) Schult. & Schult.f. | Details |
| Liliaceae | Lilioideae | Gagea Salisb. | Gagea reticulata (Pall.) Schult. & Schult.f. | Details |
| Rubiaceae | Galium L. | Galium sinaicum (Delile ex Decne.) Boiss. | Details | |
| Rubiaceae | Galium L. | Galium aparine L. | Details | |
| Rubiaceae | Galium L. | Galium setaceum Lam. subsp. setaceum | Details | |
| Rubiaceae | Galium L. | Galium spurium L. subsp. africanum Verd. | Details | |
| Rubiaceae | Galium L. | Galium tricornutum Dandy | Details | |
| Rubiaceae | Galium L. | Galium canum Req. | Details | |
| Rubiaceae | Galium L. | Galium ceratopodum Boiss. | Details | |
| Rubiaceae | Galium L. | Galium mollugo L. | Details | |
| Rubiaceae | Galium L. | Galium murale (L.)All. | Details | |
| Rubiaceae | Galium L. | Galium setaceum Lam. subsp. decaisnei (Boiss.) Ehrend. | Details | |
| Compositae (Asteraceae) | Cichorioideae | Garhadiolus Jaub. & Spach | Garhadiolus hedypnois Jaub. & Spach | Details |
| Gramineae (Poaceae) | Pooideae | Gastridium P.Beauv. | Gastridium phleoides (Nees & Meyen) C. E. Hubb. | Details |
| Boraginaceae | Boraginoideae | Gastrocotyle Bunge | Gastrocotyle hispida (Forssk.) Bunge | Details |
| Compositae (Asteraceae) | Asteroideae | Geigeria Griesselich | Geigeria alata (Hochst. & Steud. ex DC.) Benth. & Hook.f. ex Oliv. & Hiern | Details |
| Geraniaceae | Geranium L. | Geranium dissectum L. | Details | |
| Geraniaceae | Geranium L. | Geranium molle L. | Details | |
| Geraniaceae | Geranium L. | Geranium rotundifolium L. | Details | |
| Geraniaceae | Geranium L. | Geranium mascatense Boiss. | Details | |
| Geraniaceae | Geranium L. | Geranium yemense Deflers | Details | |
| Compositae (Asteraceae) | Cichorioideae | Geropogon L. | Geropogon hybridus (L.) Sch.Bip. | Details |
| Gisekiaceae | Gisekia L. | Gisekia pharnaceoides L. | Details | |
| Iridaceae | Gladiolus L. | Gladiolus italicus Mill. | Details | |
| Papaveraceae | Fumarioideae | Glaucium Mill. | Glaucium arabicum Fresen. | Details |
| Papaveraceae | Fumarioideae | Glaucium Mill. | Glaucium grandiflorum Boiss. & A.Huet | Details |
| Papaveraceae | Fumarioideae | Glaucium Mill. | Glaucium corniculatum (L.) Curtis | Details |
| Compositae (Asteraceae) | Asteroideae | Glebionis Cass. | Glebionis coronaria (L.) Tzvelev | Details |
| Molluginaceae | Glinus L. | Glinus lotoides L. | Details | |
| Molluginaceae | Glinus L. | Glinus runkewitzii Täckh.& Boulos | Details | |
| Plantaginaceae | Globularia Tourn. ex L. | Globularia alypum L. | Details | |
| Plantaginaceae | Globularia Tourn. ex L. | Globularia arabica Jaub. & Spach | Details | |
| Leguminosae (Fabaceae) | Papilionoideae (Faboideae) | Glycyrrhiza L. | Glycyrrhiza glabra L. | Details |
| Compositae (Asteraceae) | Asteroideae | Gnaphalium L. | Gnaphalium polycaulon Pers. | Details |
| Compositae (Asteraceae) | Asteroideae | Gnomophalium Greuter | Gnomophalium pulvinatum (Delile) Greuter | Details |
| Apocynaceae | Asclepiadoideae | Gomphocarpus | Gomphocarpus fruticosus (L.)W.T.Aiton | Details |
| Apocynaceae | Asclepiadoideae | Gomphocarpus R. Br. | Gomphocarpus sinaicus Boiss. | Details |