n.an undifferentiated part of a perianth that cannot be distinguished as a sepal or a petal (as in lilies and tulips)

Tepal formation and expression pattern of B-class paleoAP3-like MADS-box genes in crocus (Crocus sativus L.).
Pollen morphology, tepal and fruit microcharacteristics of the genus Fagopyrum Mill. from China
Evaluation of the tepal colour of Begonia x tuberhybrida Voss. for DUS testing using image analysis
Systematic significance of tepal surface morphology in tribes Persicarieae and Polygoneae (Polygonaceae)
Induction of continuous tepal differentiation from in vitro regenerated flower buds of Hyacinthus orientalis
Interactions of B-class complex proteins involved in tepal development in Phalaenopsis orchid
Anthocyanin content of Tulipa species and cultivars and its impact on tepal colours
Postharvest flower development in Asiatic hybrid lilies as related to tepal carbohydrate status
Ethylene and flower longevity in Alstroemeria: relationship between tepal senescence, abscission and ethylene biosynthesis.
Oriental hybrid lily Sorbonne homologue of LhMYB12 regulates anthocyanin biosyntheses in flower tepals and tepal spots