Syringa pubescens Syringa pubescens Syringa pubescens is a species of flowering plant in the lilac genus of the family Oleaceae, native to Korea and China (Gansu, Hebei, Henan, Hubei, Jilin, Liaoning, Ningxia, Qinghai, Shaanxi, Shandong, Shanxi, Sichuan). Growing to tall and broad, it is a substantial deciduous shrub with green leaves felted white beneath, and panicles of heavily scented, white-throated lilac flowers in early summer. The specific epithet "pubescens" means "downy", referring to the texture of the leaves. Three subspecies (formerly listed as separate species) are recognised: The cultivar "S. pubescens" subsp. "microphylla" 'Superba' has gained the Royal Horticultural Society's Award of
Types of plant oils means of extracting essential oils. In this process, used, for example, to extract the onion, garlic, wintergreen and bitter almond essential oil, the plant material is macerated in warm water to release the volatile compounds in the plant. Types of plant oils Plant oils or vegetable oils are oils derived from plant sources, as opposed to animal fats or petroleum. There are three primary types of plant oil, differing both the means of extracting the relevant parts of the plant, and in the nature of the resulting oil: Vegetable fats and oils are what are most commonly called vegetable oils.