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Spruce (hemlock)

Vân sam Hemlock

Tsuga canadensis

Eastern hemlock

Pinaceae · Lá kim · Needles · Steam-distilled

Spruce (hemlock) (Tsuga canadensis) — botanical illustration
Tsuga canadensis

Safety

Skin sensitization if oxidized

α-Pinene and β-pinene high. Oxidation products may sensitize.

Tsuga canadensis is a completely different plant from poison hemlock (Conium maculatum), only the English name overlaps.

Store properly.


Usage guidelines

Storage
Dark, sealed, refrigerated; add antioxidant

Chemistry

Volatile constituents
α-Pinene20.0 – 35.0 %
β-Pinene10.0 – 20.0 %
Camphene5.0 – 12.0 %
δ-3-Carene3.0 – 10.0 %

Botanical source

Tsuga canadensis is a large tree from North America.

Family Pinaceae.


Notes

Niche oil.