A tepal is one of the outer parts of a flower. The term is used when these parts cannot easily be classified as either sepals or petals. This may be because the parts of the perianth are undifferentia
A Lilium flower showing the six tepals: the outer three are sepals and the inner three are petals.
Flowers of Magnolia × alba showing tepals in various stages of development
Tepals of Magnolia × wieseneri
A hellebore flower showing the petaloid sepals
Liliales is an order of monocotyledonous flowering plants in the Angiosperm Phylogeny Group and Angiosperm Phylogeny Web system, within the lilioid monocots. This order of necessity includes the famil
Colchicum autumnale (Colchicaceae)
Tulipa humilis (Liliaceae): Bulbs
Tulipa clusiana (Liliaceae): Six undifferentiated tepals