| Family | subfamily | Genus | Species | |
|---|---|---|---|---|
| Cruciferae (Brassicaceae) | Morettia DC. | Morettia philaeana DC. | Details | |
| Cruciferae (Brassicaceae) | Moricandia DC. | Moricandia sinaica (Boiss.) Boiss. | Details | |
| Cruciferae (Brassicaceae) | Moricandia DC. | Moricandia nites (Viv.) Durand & Barratte | Details | |
| Moringaceae | Moringa Adans. | Moringa peregrina (Forssk.)Fiori | Details | |
| Asparagaceae | Scilloideae | Muscari Mill. | Muscari salah-eidii (Tackh. & Boulos) Hosni | Details |
| Asparagaceae | Scilloideae | Muscari Mill. | Muscari prviflorum Desf. | Details |
| Asparagaceae | Scilloideae | Muscari Mill. | Muscari neglectum Guss. | Details |
| Asparagaceae | Scilloideae | Muscari Mill. | Muscari longistylum (Tackh. & Boulos )Hosni | Details |
| Asparagaceae | Scilloideae | Muscari Mill. | Muscari commutatum Guss. | Details |
| Asparagaceae | Scilloideae | Muscari Mill. | Muscari albiflorum (Tackh. & Boulos)Hosni | Details |
| Asparagaceae | Scilloideae | Muscari Mill. | Muscari bicolor Boiss. | Details |
| Asparagaceae | Scilloideae | Muscari Mill. | Muscari comosa (L.)Mill. | Details |
| Asparagaceae | Scilloideae | Muscari Mill. | Leopoldia eburnea Eig & Feinbrun | Details |
| Asparagaceae | Scilloideae | Muscari Mill. | Muscari longipes subsp. negevense (Feinbrun & Danin) Hosni | Details |
| Haloragaceae | Myriophyllum L. | Myriophyiium spicatum L | Details | |
| Hydrocharitaceae | Najas L. | Najas marina subsp. intermedia (Wolfg. ex Gorski) Casper | Details | |
| Hydrocharitaceae | Najas L. | Najas graminea Delile | Details | |
| Hydrocharitaceae | Najas L. | Najas minor All. | Details | |
| Hydrocharitaceae | Najas L. | Najas horrida A.Br. ex Magn. | Details | |
| Hydrocharitaceae | Najas L. | Najas pectinata (Parl.)Magnus | Details | |
| Scrophulariaceae Juss. s.l. [Family (APG III]: Plantaginaceae) | Scrophularoideae Melch. | Nanorrhinum Betsche | Nanorrhinum hastatum (R.Br. ex Benth.) Ghebr. | Details |
| Scrophulariaceae Juss. s.l. [Family (APG III]: Plantaginaceae) | Scrophularoideae Melch. | Nanorrhinum Betsche | Nanorrhinum acerbianum (Boiss.) Betsche | Details |
| Scrophulariaceae Juss. s.l. [Family (APG III]: Plantaginaceae) | Scrophularoideae Melch. | Nanorrhinum Betsche | Nanorrhinum macilentum (Decne.) Betsche | Details |
| Scrophulariaceae Juss. s.l. [Family (APG III]: Plantaginaceae) | Scrophularoideae Melch. | Nanorrhinum Betsche | Nanorrhinum heterophyllum (Schousb.) Ghebr. | Details |
| Amaryllidaceae | Amaryllioideae | Narcissus L. | Narcissus tazetta L. | Details |
| Cruciferae (Brassicaceae) | Nasturtiopsis Hochst. ex O.E. Schulz | Nasturtiopsis integrifolia (Boulos) Abdel Khalik & F.T.Bakker | Details | |
| Cruciferae (Brassicaceae) | Nasturtiopsis Hochst. ex O.E. Schulz | Nasturtiopsis coronopifolia subsp. arabica (Boiss.) Greuter & Burdet | Details | |
| Cruciferae (Brassicaceae) | Nasturtiopsis Hochst. ex O.E. Schulz | Nasturtiopsis integrifolia (Boulos) Abdel Khalik & Bakker | Details | |
| Cruciferae (Brassicaceae) | Nasturtium R.Br. | Nasturtium officinale R.Br. | Details | |
| Cruciferae (Brassicaceae) | Neotorularia Hedge & J. Leonard | Neotorularia torulosa var. scorpiuroides (Boiss.) Hedge & J.Léonard | Details | |
| Lamiaceae (Labiatae) | Nepetoideae | Nepeta L. | Nepeta septemcrenata Benth. | Details |
| Neuradaceae | Neurada L. | Neurada procumbens L. | Details | |
| Solanaceae | Solanoideae | Nicandra Adans. | Nicandra physalodes (L.)Scopoli | Details |
| Solanaceae | Nicotianoideae | Nicotiana L. | Nicotiana plumbaginifolia Viv. | Details |
| Solanaceae | Nicotianoideae | Nicotiana L. | Nicotiana glauca Graham | Details |
| Solanaceae | Nicotianoideae | Nicotiana L. | Nicotiana rustica L. | Details |
| Compositae (Asteraceae) | Asteroideae | Nidorella Cass. | Nidorella aegyptiaca (L.) J.C.Manning & Goldblatt | Details |
| Ranunculaceae | Nigella L. | Nigella desert Boiss. | Details | |
| Ranunculaceae | Nigella L. | Nigella arvensis L. subsp. taubertii (Brand)Maire | Details | |
| Nitrariaceae | Nitraria L. | Nitraria retusa (Forssk.) Asch. | Details | |
| Amaranthaceae s.l. | Salsoloideae | Noaea Moq. | Noaea muricata (Forssk.) Asch. & Schweinf. | Details |
| Boraginaceae | Boraginoideae | Nonea Medicus | Nonea vivianii A. DC. | Details |
| Amaryllidaceae | Allioideae | Nothoscordum | Nothoscordum gracile (Aiton) Stearn | Details |
| Compositae (Asteraceae) | Carduoideae | Notobasis Cass. | Notobasis syriaca (L.) Cass. | Details |
| Cruciferae (Brassicaceae) | Notoceras R.Br. | Notoceras bicorne (Aiton) Amo | Details | |
| Nymphaeaceae | Nymphaea L. | Nymphaea lotus L. | Details | |
| Nymphaeaceae | Nymphaea L. | Nymphaea nouchali Burm.f. var.caerulea (Savigny) Verdc. | Details | |
| Nymphaeaceae | Nymphaea L. | Nymphaea micrantha Guill. & Perr. | Details | |
| Cymodoceaceae | Oceana Byng & Christenh. | Oceana serrulata (R.Br.) Byng & Christenh. | Details | |
| Resedaceae | Ochradenus Delile | Ochradenus baccatus Delile | Details |