Salix spp.

Palo, R. T. (1984). Distribution of birch Betula spp.), willow [Salix spp.) and poplar Popu-lus spp.) secondaiy metabolites and their potential role as chemical defense against herbivores. Journal of ChemicalEcobgy 10,499-520. 

Fagus sylvatica Melia azedarach Paullina paullinioides Salix spp. 

Chrysanthemum indicum (Asteraceae) [flower], Buddleja officinalis (Loganiaceae) [flower], Humulus japonicus (Cannabaceae), Salix spp. (Salicaceae)... 

When beavers first colonize a site they begin by harvesting the most palatable species, such as aspen (Populus spp.) or willow (Salix spp.). Over time, they change the vegetation by their selection of trees for food and construction of dams and lodges. Eventually, often only the least preferred conifers are left, and the beavers move to a new area until some of the depleted vegetation has regenerated. Beavers move back in, and the cycle repeats. 

Upton, R. 1999. Willow bark, Salix spp. Analytical, quality control, and therapeutic monograph. Santa Cruz, CA American Herbal Pharmacopxreia. 

C20H24O10, Mr 424.40, mp. 135-137°C, occurs in the bark of willows (Salix spp.) and poplars (Populus spp.). It protects the plants from attack by insects (antifee-dant) S. is an inhibitor of the )8-glucosidase from sweet almonds and kills larvae of the swallowtail Papilio glaucus. ... 

Salicin—found in willow bark (Salix spp.), poplar bark (Populus spp.) and Viburnum spp. 

SA (Fig. 63.3), also called 2-hydroxybenzoic acid, is used chiefly in the preparation of aspirin and other pharmaceutical products. Salicylic acid occurs in such diverse plants as Salix spp., Sauromatum guttatum, Grindelia spp., 2LnAMespilus germanica and is also produced by the bacterium Pseudomonas cepacia [51]. 

Among the less conmum Cg—C2 compounds, phenolic ketones have occasionally been found as plant constituents. Picein (IV) the main component of all investigated spruce needles (Picea abies (L.) Karst), also occurs in Larix decidua Mill., Populus balsandfera, and Salix spp. p-Hydroxyphenylacetic acid occurs free and as a glucoside in bamboo shoots. Xanthoxylin, a phloroacetophenone derivative, has been found in Xanthoxylum spp. [42,46-48]. 

Figure 1 shown below is the proton NMR spectrum of an acid hydrolyzed sample of a fast-growing species of willow (Salix spp.). Although the spectral region from 3.2-4.0 ppm is veiy complex, the well resolved resonances centered near 5.2 ppm and 4.6 ppm can be assigned to the a and p anomeric Cl protons of D-glucose and D-xylose. The higher intensity resonance of each pair is D-... 

The glycosides of salicyl and gentisyl alcohols in Salix spp. and Populus spp., genera of the Salicaceae family, have been extensively studied by Pearl et al. (124-130) and Thieme et al. (168-171) (see summary and references in ref. 123). Salicin (14), the glucoside of salicyl alcohol, occurs characteristically in this family of plants. This compound is found in the bark of all species in the family, but often in small amounts. Another characteristic compound of the many salicin-related compounds occurring in most Salix species is salicortin (15), in which the... 

Peacock L, Herrick S, Brain P (1999) Spatio-temporal dynamics of willow beetle (Phratora vulgatissimd) in short-rotation coppice willows grown as monocultures or a genetically diverse mixture. Agric Forest Entomol 1 287-296 Peacock L, Lewis M, Powers S (2001) Volatile compounds from Salix spp. Varieties differing in susceptibility to three willow beetle species J Chem Ecol 27 1943-1951 Pena-Cortes H, Sanchez-Serrrano JJ, Mertens R, WiUmitzer L (1989) Abscisic acid is involved in... 

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