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Liatrix in Perfumery | Première Peau

Q: Is Liatrix natural or synthetic?

. Extraction: Solvent extraction of sun-dried leaves. Fresh Liatris odoratissima leaves are harvested and sun-dried until coumarin crystallises on the leaf surface (coumarin content develops through enzymatic hydrolysis during drying — fresh leaves are nearly odorless). The dried leaf material is extracted with a volatile hydrocarbon solvent (hexane or petroleum ether) to yield a concrete — a dark, waxy paste. This concrete is then washed with ethanol and subjected to freezing (glazing at approximately 0 degrees C) to precipitate waxes, filtered, and the alcohol evaporated to yield the absolute: a dark green to brown, viscous, oleoresinous liquid. Yield data for the absolute are not widely published. Steam distillation produces negligible essential oil and is not used commercially..

FLOWERS / floral · sweet · green

Liatrix

Category	FLOWERS
Subcategory	floral · sweet · green
Origin
Volatility	Heart Note
Botanical	Carphephorus odoratissimus (J.F.Gmel.) H.Rob. (syn. Liatris odoratissima)
Appearance	Colorless to pale yellow liquid
Odor Strength	Medium
Producing Countries	United States (Southeastern)
Pyramid	Heart

Warm, golden, coumarinic. Dried liatris leaves smell like tonka bean crossed with cured tobacco — a hay-sweet fixative so rich in natural coumarin that it crystallises visibly on the leaf surface.

Scent
Terroir & Origins
The Full Story
Fun Fact
Extraction & Chemistry
In Perfumery
See Also

Scent

Warm, golden, unmistakably coumarinic — like burying your face in a bale of sun-dried hay. Sweeter than tonka bean, less vanillic, with a pronounced herbaceous-green undertow that tonka lacks. Where tonka is round and confectionery, liatrix is drier, more vegetal, closer to dried sweet clover. A faint coconut-creamy note from dihydrocoumarin surfaces underneath. On blotter after hours: cured tobacco leaf, warm almond skin, a trace of cherry pit.

Evolution over time

Immediately

After a few hours

After a few days

Terroir & Origins

Indicative 2025 wholesale prices.

The Full Story

Liatrix absolute is extracted from the dried leaves of Carphephorus odoratissimus (syn. Liatris odoratissima), a perennial wildflower native to the southeastern United States, commonly called deer tongue or vanilla leaf. The perfumery material is not derived from the flowers or roots — it comes exclusively from the leaves, which develop their characteristic aroma only after drying.

Fresh liatris leaves are nearly odorless. Coumarin exists in the living plant as an odorless glucoside of o-hydroxycinnamic acid. During sun-drying, beta-glucosidase enzymes hydrolyse this precursor, releasing free o-hydroxycinnamic acid that spontaneously undergoes intramolecular lactonisation to form crystalline coumarin — the same molecule responsible for the scent of tonka bean, fresh-cut hay, and sweet woodruff. In dried liatris leaves, coumarin concentrations can exceed 10% of dry weight.

GC-MS analysis of liatrix absolute reveals coumarin at 50-75% — significantly higher than tonka bean absolute (20-45%). Dihydrocoumarin contributes 5-20%, adding a sweet, coconut-creamy facet absent in purely coumarinic materials. Supporting compounds include geraniol (~4%), linalool (~4%), benzyl benzoate, and benzoic acid.

In perfumery, liatrix absolute functions as a powerful fixative with 2-3 days of tenacity on blotter. It anchors fougere compositions (reinforcing the lavender-coumarin-oakmoss triad), enriches tobacco accords with authentic cured-leaf character, and bridges gourmand and balsamic elements in oriental bases. Synthetic coumarin (CAS 91-64-5) has largely replaced it in commercial formulas, but the natural absolute retains a complexity — herbaceous, slightly bitter, with tobacco undertones — that the pure molecule cannot replicate.

Did You Know?

Did you know?

Dried liatris leaves were the dominant tobacco flavoring in the American South from the mid-19th century until the FDA banned coumarin from food products in 1954 (21 CFR 189.130). Despite this, coumarin was not actually removed from US domestic cigarettes until 1985, from pipe tobacco until 1996, and never from imported Indian bidi cigarettes.

Extraction & Chemistry

Extraction method: Solvent extraction of sun-dried leaves. Fresh Liatris odoratissima leaves are harvested and sun-dried until coumarin crystallises on the leaf surface (coumarin content develops through enzymatic hydrolysis during drying — fresh leaves are nearly odorless). The dried leaf material is extracted with a volatile hydrocarbon solvent (hexane or petroleum ether) to yield a concrete — a dark, waxy paste. This concrete is then washed with ethanol and subjected to freezing (glazing at approximately 0 degrees C) to precipitate waxes, filtered, and the alcohol evaporated to yield the absolute: a dark green to brown, viscous, oleoresinous liquid. Yield data for the absolute are not widely published. Steam distillation produces negligible essential oil and is not used commercially.

↑ See Terroir & Origins for origin-specific methods.

Molecular Formula	Complex mixture (contains coumarin as major aromatic compound)
CAS Number	68602-86-8 (absolute); 68606-82-6 (oil)
Botanical Name	Carphephorus odoratissimus (J.F.Gmel.) H.Rob. (syn. Liatris odoratissima)
IFRA Status	Restricted — max 2.0% in fragrance concentrate (TGSC). Contains coumarin (50-75%), subject to IFRA coumarin limits across all categories. EU allergen declaration required above 10 ppm in leave-on, 100 ppm in rinse-off products.
Synonyms	Deertongue absolute, deer tongue, vanilla leaf, Carolina vanilla
Physical Properties
Odor Strength	Medium
Appearance	Colorless to pale yellow liquid

In Perfumery

Fixative and coumarinic base note. Liatrix absolute is one of the richest natural sources of coumarin available to perfumers — surpassing tonka bean absolute in coumarin concentration by a factor of two or more. It functions primarily as a tenacious fixative with warm, sweet, hay-tobacco character. In fougere compositions, it reinforces the canonical coumarin-lavender-oakmoss structure with a naturalistic depth that synthetic coumarin alone cannot provide. In tobacco accords and leather bases, it delivers authentic cured-leaf warmth. It blends effectively into chypre structures alongside oakmoss and labdanum, and it extends amber-oriental bases with a dry, non-cloying sweetness. Synthetic alternatives: coumarin (CAS 91-64-5) provides the dominant olfactory molecule but lacks the herbaceous complexity. Dihydrocoumarin (CAS 119-84-6) reproduces the coconut-creamy facet. Ethyl vanillin can approximate the vanillic warmth but misses the hay-tobacco character entirely.