Utah Beardstongue <i>(Penstemon utahensis)</i> (IMAGE) Botanical Society of America Caption Most <i>Penstemon</i> species that display the hummingbird pollination syndrome, such as <i>Penstemon utahensis</i> shown here, represent independent evolutionary origins of this phenotype. Credit Photo credit: Carolyn A. Wessinger. Usage Restrictions Cite article and credit line. License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.