White Avens (Geum canadense)
A plant in the rose family, Rosaceae. It is widespread across much of Canada, the United States, and Mexico. Readily hybridizes with the introduced Geum urbanum. Blooming occurs for one to two months in the summer; each flower has five white petals and five green sepals. Flowers are replaced by clusters of long, thin seeds each with a hook on one end that may catch on clothing or animal fur.