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Four
species of Sagittaria are recorded in Britain - Arrowhead
(S. sagittifolia), Duck-potato (S. latifolia), Canadian
Arrowhead (S. rigida), and Narrow-leaved Arrowhead (S.
subulata).
One
species of dipterous miner, the ephydrid Hydrellia
griseola, is recorded mining Sagittaria in Britain.
See
ALISMA.
No
non-dipterous miners are recorded on Sagittaria in Britain.
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