In plants parthenogenesis is a component process of apomixis. Therefore, propagation via asexual seeds or apomixis is asexual reproduction but not vegetative propagation. In plants, apomixis may or may not involve parthenogenesis. For apomixis and similar processes in non-plant organisms, see parthenogenesis. A few plant species can form colonies via asexual seeds, termed apomixis, e.g. dandelion. Uniparental reproduction may also occur by apomixis, an asexual process. Vegetative reproduction may be by bulbils or by seeds through apomixis. These plants tend towards self pollination, apomixis, and vivipary. Gametophytic apomixis in flowering plants develops in several different ways. Some hybrids do reproduce true to type via nucellar seeds in a process called apomixis. Facultative apomixis means that apomixis does not always occur, i.e. sexual reproduction can also happen. Compounding the problem is that apomixis is common in several genera. The seeds of "L. parasiticum" are polyembryonic, the multiple embryos resulting from apomixis. The genetic composition of the offspring depends on what type of apomixis takes place.