Wood ginger and mountain pepper is a thing.

Wood ginger, also known as mountain pepper, is camphoraceae, camphor genus deciduous small trees; bark gray-white. Young branches yellow-green, terminal buds conical, leaves alternate, often clustered at the top of branches, lanceolate or obovate-lanceolate, membranous, pinnate veins, petiole slender, umbels axillary; each inflorescence has 8-12 male flowers, the first leaves open; perianth lobes yellow, obovate, filaments pilose only at the base, fruit spherical.

Expanded Information:

Mu Jiang Zi main value

Fruit contains aromatic oil, Sichuan data, the dried fruit contains 2-6% of the aromatic oil, the fresh fruit contains 3-4%, the main Composition of citral 60-90%, geraniol 5-19%, can be used as edible flavor and cosmetic flavor, has been widely used in high-level spices, violet ketone and vitamin A raw materials; seeds containing fatty oil 48.2%, can be used for soap-making and industrial use.

Wood ginger oil, also known as: mountain pepper oil, celandine oil, is the essential oil of wood ginger and edible vegetable oil diluted blended into a flavored oil, lemon aroma, with deodorant, taste and freshness of the efficacy.

The ginger oil, the fruit of the ginger extracted through distillation of essential oils, the main component of citral, used in the synthesis of edible flavors, cosmetic flavors, etc.. Therefore, there is a difference between the oil and the essential oil.

Baidu Encyclopedia - Mullein (Camphoraceae)