sorry to dig up and old post but when i read Bob's thread on sweetgum I think I recognised that spiky seed pod and I'm pretty sure they are growing here in NZ, I happend to read a little about the medicinal use of it and stumbled on something that mentions ancient use of the resin with tobacco. I post a small section of the txt here, just in case anyone finds it interesting.
MEDICINAL PROPERTIES OF SWEETGUM
Many of the medicinal properties of sweetgum come from storax as well as essential oils extracted from the leaves. Storax, also referred to as styrax, is produced by damaging the outer bark of sweetgum trees. When the tree is wounded, the inner bark produces a balsam. Boiling the inner bark in water effectively removes the balsam and produces storax. Storax produced from
L. orientalis, or Turkish sweetgum, is referred to as Asian storax while storax derived from
L. styraciflua is called American storax. Storax has medicinal uses dating back to the Aztec Empire during the Paleo-Indian Period (ca. 10,000-7000 BC). The ancient Aztecs collected the boiled down, grayish-brown, sticky, opaque liquid and used it as a treatment for skin infections and other ailments.[
1] Native Americans also used storax for medicinal purposes, including controlling coughs and dysentery and treating sores and wounds.[
7] In addition to storax, the sap of the sweetgum tree was burnt as incense or mixed with tobacco leaves as a sedative[
1] as well as used in the making of soaps, cosmetics, fixatives in perfumes, adhesives, and lacquers. Recent references from organic websites have noted that the inner bark of sweetgum, boiled with milk, can relieve diarrhea, and oils from the leaves of sweetgum trees have antimicrobial properties against both bacteria and viruses.[
8]
In addition to storax, the leaves of the sweetgum tree are also believed to possess antimicrobial properties. Leaf oil from
L. orientalis and
L. styraciflua contained high levels of terpinen-4-ol, α-terpineol, α-pinene, and sabinene as well as other compounds.[
13,
14,
15] Terpinen-4-ol, is the active ingredient found in the essential oil of the
Melaleuca alternifolia (Australian tea tree). Tea tree oil has a well-established reputation as an antimicrobial agent[
16,
17] suggesting that terpinen-4-ol derived from the leaves of
L. styraciflua and
L. orientalis may also possess similar antimicrobial properties.
Lee