GREENS, HERBS AND FOUGERES / fresh · green · aquatic
Posidonia
Category
GREENS, HERBS AND FOUGERES
Subcategory
fresh · green · aquatic
Origin
Volatility
Heart Note
Botanical
Posidonia oceanica
Appearance
N/A — fantasy accord (no physical extract)
Odor Strength
Medium
Producing Countries
Mediterranean
Pyramid
Heart
Marine, iodine-tinged, and vegetal. Posidoni a (Neptune grass) smells like the Mediterranean seabed exposed at low tide — salt, dried seaweed, and a particular mineral-green freshness.
Iodine-tinged, salty, and vegetal-green. Less clean and ozonic than synthetic marine molecules (Calone, Helional). More naturalistic and slightly funky — dried vegetation mixed with sea salt and mineral rock. The greenness is not terrestrial-herbal but marine-vegetal.
Compared to seaweed absolute, Posidonia is lighter and less sulfurous. Compared to ambergris, it is greener and more vegetal, less musky.
Posidoni a oceanic a is a marine flowering plant (not a seaweed but a true angiosperm) endemic to the Mediterranean Sea. It forms vast underwater meadows that are critical to Mediterranean marine ecosystems. When Posidoni a leaves wash ashore and dry, they produce a particular marine-vegetal scent — iodine, salt, dried vegetati on, and mineral freshness.
The aromatic profile of dried Posidonia is complex: dimethyl sulfide (marine-sulfurous), trimethylamine (fishy at high concentration, marine-fresh at low doses), and various terpenes and green-leaf alcohols contribute to its character. The overall impression is of Mediterranean coast — more vegetal and mineral than the clean, ozonic marine notes common in commercial perfumery.
In niche perfumery, Posidonia represents a specific, geographically anchored marine note — the Mediterranean littoral zone, not the generic ocean of synthetic marine accords.
Posidonia oceanica meadows produce structures called 'mattes' — dense accumulations of dead roots and rhizomes that can grow vertically at a rate of about 1 meter per century. Some Posidonia mattes in the Mediterranean are estimated to be over 6,000 years old.
Extraction & Chemistry
Extraction method: Extraction data not independently verified for perfumery grade. Posidonia leaf extract is used in cosmetics (skincare) via solvent extraction. For fragrance purposes, the marine-vegetal character is typically reconstructed using seaweed absolute, marine-green molecules, and iodine-salt accents. Direct essential oil distillation from Posidonia leaves is not a standard commercial product.
Molecular Formula
Complex natural mixture
CAS Number
N/A — marine plant, no single CAS for extract
Botanical Name
Posidonia oceanica
IFRA Status
No known restrictions
Synonyms
seagrass
Physical Properties
Odor Strength
Medium
Appearance
N/A — fantasy accord (no physical extract)
In Perfumery
Posidoni a is a marine-green heart note providing Mediterranean specificity. It is an alternative to generic aquatic-ozonic notes (Calone, Helional), offering a more naturalistic, vegetal marine character. Useful in marine, Mediterranean, and territory compositions. Blends with sea salt, ambergr is, seaweed, citrus, and Mediterranean herbs.
