western milfoil
Myriophyllum hippuroides Nutt. ex Torr. & A.Gray
Myriophyllum hippuroides, commonly known as western milfoil, is a species of watermilfoil native to the west coast of North America. It is found in aquatic environments such as ponds and streams, and is part of the Haloragaceae family. This plant can grow over a meter in length, with stems bearing whorls of fleshy, narrow-lobed leaves. Its inflorescence is a spike of small flowers up to 12 cm long, which rises above the water surface.
Description
Myriophyllum hippuroides is a member of the genus Myriophyllum and is distributed across British Columbia and other regions in the Nearctic and global zones. The species was first described in 1840 by Nutt. ex Torr. & A.Gray. It is an aquatic plant with a creeping or floating growth habit. Its leaves are arranged in whorls along the stem and are divided into numerous narrow lobes. The flowering spike extends above the water, distinguishing it from other similar species. It is adapted to freshwater habitats and is a common component of wetland and stream ecosystems in its native range.
Other common names
western milfoilwestern water-milfoilwestern watermilfoil
Distribution
British Columbia · Nearctic · SE · Global