Stachys arvensis

Stachys arvensis

European plant in the family Lamiaceae; contains an unidentified toxin which causes tremor, incoordination and recumbency if exercised. There is no permanent damage. Called also stagger weed.
References in periodicals archive ?
Bryn Griffiths said corn spurrey - spergula arvensis - and field woundwort - stachys arvensis - were seen in the majority of the fields as in the 2005 survey, while a few other notable species were also seen at some sites.