Bark Oil, Board Head, Cap: Scents by Position
Common position names
Bark oil: shallow, thin, bright aroma; board head: chunky resin at a trunk break; cap: a lump formed above a broken stub. There are also "hanging mouth", "heart oil" and more.
Position vs scent
Shallow bark oil is bright; deep heart oil is deep and lasting. Names are experiential—judge by actual scent and resin. Science summary.
Compiled for general knowledge; traditional references are cultural notes, not medical advice.
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