E-Flora BC: Electronic Atlas of the Flora of BC

Myriophyllum heterophyllum Michx.
varied-leaved watermilfoil (twoleaf watermilfoil)
Haloragaceae (Water Milfoil family)

Introduction to Vascular Plants

Photograph

Currently no image is available for this taxon.

Map

Distribution of Myriophyllum heterophyllum
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Introduction

According to Ceska and Ceska (2010), this species is "introduced to Alberta, British Columbia and Washington from eastern North America. In BC it occurs in park ponds in Vancouver. Easily recognizable by whitish stems and leaves in pseudowhorls. Winter buds absent."

Status Information

Origin Status	Provincial Status	BC List (Red Blue List)	COSEWIC
Exotic	SNA	Exotic	Not Listed

BC Ministry of Environment: BC Species and Ecosystems Explorer.

Taxonomic Keys

There are ten species of Myriophyllum found in the Pacific Northwest (Ceska and Ceska 2010). View a key to the genus Myriophyllum for this region prepared by Oldriska Ceska and Adolf Ceska (BEN #428).

References

Reference: Ceska, Oldriska and Adolf Ceska. 2010. Genus Myriophyllum (Haloragaceae) in the Pacific Northwest. Botanical Electronic News #428. Available online.