1. Creeping; - said of lesions which heal over one portion while continuing to advance at another

Encyclopedia: Serpiginous

• genus Umbrina
• genus Unio
• genus Upupa
• genus Urginea
• genus Uria
• genus Urocyon
• genus Urocystis
• genus Urophycis
• genus Uropsilus
• genus Urosaurus
• genus Ursinia
• genus Ursus
• genus Urtica
• genus Usnea
• genus Ustilaginoidea
• genus Ustilago
• genus Uta
• genus Utahraptor
• genus Utricularia
• genus Uvularia
• genus Vaccaria
• genus Vaccinium
• genus Valeriana
• genus Valerianella
• genus Vallisneria