''Myriophyllum hippuroides'' is a species of

watermilfoil ''Myriophyllum'' (water milfoil) is a genus of about 69 species of freshwater aquatic plants, with a cosmopolitan distribution. The centre of diversity for ''Myriophyllum'' is Australia with 43 recognized species (37 endemic). These submersed aq ...

known by the common name western watermilfoil. It is native to the west coast of

North America North America is a continent in the Northern Hemisphere, Northern and Western Hemisphere, Western hemispheres. North America is bordered to the north by the Arctic Ocean, to the east by the Atlantic Ocean, to the southeast by South Ameri ...

, where it grows in aquatic habitat such as

pond A pond is a small, still, land-based body of water formed by pooling inside a depression (geology), depression, either naturally or artificiality, artificially. A pond is smaller than a lake and there are no official criteria distinguishing ...

s and streams. It generally grows over a meter long, with its stem lined with whorls of fleshy green leaves divided into many narrow lobes. The leafy

inflorescence In botany, an inflorescence is a group or cluster of flowers arranged on a plant's Plant stem, stem that is composed of a main branch or a system of branches. An inflorescence is categorized on the basis of the arrangement of flowers on a mai ...

is a spike of small flowers up to 12 centimeters long which grows above the water's surface.

References

External links

Jepson Manual Treatment

Photo gallery
hippuroides Freshwater plants Flora of the West Coast of the United States Flora of British Columbia Flora of California Flora of Illinois Flora of Oklahoma Flora of Oregon Flora of Texas Flora of Washington (state) Flora of Wisconsin Flora without expected TNC conservation status {{Saxifragales-stub