Teucrium canadense

Wada and Yamazaki have reported42 the occurrence in tobacco seeds of a non-reducing trisaccharide isomeric with raffinose, which has now been shown to be identical with planteose.80 French and Wild noted67 the presence of planteose (detected as planteobiose, after mild, acid hydrolysis) in extracts from Teucrium canadense and in ash manna. Since planteose and planteobiose have only recently been recognized as distinct entities, it is likely that planteose may have escaped detection in many other plant sources, where it undoubtedly accompanies raffinose and stachyose. 

Although Western skullcap formulations are supposed to come from Scutellaria lateriflora, it is unclear whether it is responsible for the liver damage that has been associated with skullcap. In the UK, the American germander (Teucrium canadense) has been widely used to replace S. lateriflora in commercial skullcap materials and products. In one UK case of skuUcap-associated hepatotoxicity, the material was found to come from T. canadense. This raises the possibility that other cases of skullcap toxicity may also have involved Teucrium rather than Scutellaria (16). 

Table I. Biorationally Protecting Against Glyphosate Action by 2, 6-Dihydroxyacetophenone (DHP) on Teucrium canadense...

Sundaiesan, P.R., S.A. Slavoff, E. Grundel, et al. 2006. Isolation and characterisation of selected germander diterpenoids from authenticated Teucrium chamaedrys and T. canadense by HPLC, HPLC-MS and NMR. Phytochem. Anal. 17 243-250. 

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