Moroccan chamomile can be known as Ormenis multicaulis, Ormenis mixta or Anthemis mixta. In this case, it may be less confusing to call the oils by their common names. The chemical constituents of these oils vary and the oils also differ therapeutically, though to an extent there are similarities with all three oils. Orange oils Latin names are particularly important when describing essential oils from the bitter orange and sweet orange trees. The Latin name of the sweet orange tree, also known as orange portugal, is Citrus aurantium var.
Sweet orange is considered a milder oil than bitter orange, and is more suitable for children.
With orange oils, it is also important to state what part of the plant the oil is coming from, ie. if it is from the peel, leaves, flowers or a combination of the leaves and flowers. Neroli and petitgrain are usually distilled from the flowers or leaves respectively of Citrus aurantium var. However, neroli from the sweet orange tree is considered to be less therapeutic. Lowana Veal is a biologist who has carried out experimental work with essential oils. She has also written a number of articles on complementary health issues.