In this book, early fluent readers will learn why purple loosestrife is considered an invasive species, how this plant has established itself in and impacted new ecosystems, and what scientists are doing to combat the problem. Bright, full-color photographs and carefully leveled text will engage young readers as they learn more about purple loosestrife and how scientists work to control the spread. An infographic aids understanding, and an activity offers readers an opportunity to extend discovery. Children can learn more about purple loosestrife using our safe search engine that provides relevant, age-appropriate websites. Purple Loosestrife also features reading tips for teachers and parents, a table of contents, a glossary, and an index. Purple Loosestrife is part of Jump!'s Invasive Species series.