According to the flora database (Flora Croatica Database – FCD) (Nikolić, 2015) (Ruščić 2002, 2015), approximately 615 plant species and subspecies have been recorded in the Marjan Forest Park area.

Blackstonia perfoliata (L.) Huds. ssp. serotina (Rchb.) Vollm.; Delphinium peregrinum L.; Hibiscus trionum L.; Periploca graeca L.; six species are classified as vulnerable taxa (VU): Desmazeria marina (L.); Ophrys sphegodes Mill.; Salsola kali L.; Parapholis incurva (L.) C. E. Hubb.; Trifolium resupinatum L.; and four species are classified as near-threatened (NT): Chaerophyllum coloratum L.; Centaurea ragusina L.; Centaurea spinosociliata Seenus; Goniolimon dalmaticum (C. Presl) Rchb. f.; Arundo plinii Turra; Linaria microsepala A. Kern; and one critically endangered species (CR) – Consolida ajacis (L.) Schur.

Goniolimon dalmaticum (C. Presl) Rchb. f.; Arundo plinii Turra; Linaria microsepala A. Kern; and one critically endangered species (CR) – Consolida ajacis (L.) Schur.

In the flora of Marjan, 23 plant taxa have been identified as strictly protected species, according to the Regulation on Strictly Protected Species (the Official Gazette 144/13; 73/16). These are:

• Aurinia leucadea (Guss.) K. Koch
• Aurinia sinuata (L.) Griseb
• Blackstonia perfoliata (L.) Huds. ssp. serotina (Rchb.) Vollm.
• Carduus micropterus (Borbás) Teyber ssp. micropterus
• Centaurea ragusina L.
• Centaurea spinosociliata Seenus
• Chaerophyllum coloratum L.
• Limonium cancellatum (Bernh. ex Bertol.) Kuntze
• Vincetoxicum hirundinaria Medik. ssp. adriaticum (Beck) Markgr.
• Tanacetum cinerariifolium (Trevir.) Sch.Bip.
• Cymodocea nodosa (Ucria) Asch.
• Trifolium dalmaticum Vis.
• Gladiolus illyricus W. D. J. Koch
• Hibiscus trionum L.
• Ophrys sphegodes Mill.
• Goniolimon dalmaticum (C. Presl) Rchb. f.
• Genista sylvestris Scop. ssp. dalmatica (Bartl.) H. Lindb.
• Limonium cancellatum (Bernh. ex Bertol.) Kuntze
• Arundo plinii Turra
• Delphinium peregrinum L.
• Parapholis incurva (L.) C. E. Hubb.
• Onosma echioides (L.) L. ssp. dalmatica (Scheele) Peruzzi et N. G. Passal.
• Linaria microsepala A. Kern.
• Consolida ajacis (L.) Schur

There are 14 endemic taxa in the flora of Marjan: 14 endemičnih svojti:

• Aurinia leucadea (Guss.) K. Koch
• Aurinia sinuata (L.) Griseb.
• Trifolium dalmaticum Vis.
• Chaerophyllum coloratum L.
• Carduus micropterus (Borbás) Teyber ssp. micropterus
• Centaurea ragusina L.
• Centaurea spinosociliata Seenus
• Limonium cancellatum (Bernh. ex Bertol.) Kuntze
• Vincetoxicum hirundinaria Medik. ssp. adriaticum (Beck) Markgr.
• Tanacetum cinerariifolium (Trevir.) Sch.Bip.
• Goniolimon dalmaticum (C. Presl) Rchb. f.
• Onosma echioides (L.) L. ssp. dalmatica (Scheele) Peruzzi et N. G. Passal.
• Linaria microsepala A. Kern.
• Genista sylvestris Scop. ssp. dalmatica (Bartl.) H. Lindb.