Mayweed Chamomile (image) Harvard University Caption Mayweed chamomile is a non-native species that has exhibited an impressive response to climate change by adjusting its flowering time response to be much earlier in the year. It is not yet classified as an invasive plant, but dominates the landscape in various parts of the northeastern United States (shown here in Concord, Mass.). Credit Abraham Miller-Rushing Usage Restrictions None 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.