British NVC community A9

The Potamogeton natans community (NVC community A9) is one of the aquatic communities in the British National Vegetation Classification system.

It is a comparatively widely distributed community. There are three subcommunities.

Community composition
One constant species is found in this community, Broad-leaved Pondweed (Potamogeton natans).

No rare species are associated with the community.

Distribution
This community is found widely throughout Britain.

Subcommunities
There are three subcommunities:
 * the so-called Species-poor subcommunity
 * the Elodea canadensis subcommunity
 * the Juncus bulbosus - Myriophyllum alterniflorum subcommunity