Plant defense against herbivory which differ from one another in both functional groups, and in basic carbon skeletons. Monoterpenoids, continuing 2 isoprene units, are volatile essential oils such as citronella, limonene, menthol, camphor, and pinene. Diterpenoids, 4 isoprene units, are widely distributed in latex and resins, and can be quite toxic. Diterpenes are responsible for making "Rhododendron" leaves poisonous. Plant steroids and sterols are also produced from terpenoid precursors, including vitamin D, glycosides (such as digitalis) and saponins (which lyse red blood cells of herbivores). Phenolics, sometimes called "phenols", consist of an aromatic 6-carbon ring bonded to a hydroxy group. Some phenols have antiseptic
Until She Comes the band's 1981 single "Pretty in Pink". Until She Comes "Until She Comes" is a 1991 song by the English rock band the Psychedelic Furs, taken from their seventh studio album, "World Outside". Written by the Psychedelic Furs and produced by the band with Stephen Street, it was released in June as the album's first single. The 12" version included a remix by Hugh Padgham. The lyrics of "Until She Comes" depict a metaphorical story about drug addiction. The single spent two weeks at No. 1 on the US Modern Rock Tracks chart in September 1991. Author Dave Thompson described