Pictorial guide to the flora of the British Isles
Ambrosia trifida L.giant ragweed (Asteraceae / Compositae) |
Spread | Bias within British Isles | Direction of bias |
| Very local | Moderate tendency | E | |
| Plant Atlas 2020 | |||
| BSBI Distribution Map | |||
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All images copyright © Christopher J. Dixon unless otherwise indicated.
