treacle mustard

Related to treacle mustard: tansy mustard

treacle mustard

n
(Plants) a N temperate cruciferous annual plant, Erysimum cheiranthoides, having small yellow flowers. It is a common weed in cultivated ground
[C16: so called because of its alleged medicinal properties. See treacle]
References in periodicals archive ?
The adventurous will browse nurseries and Women's Institute stalls for neat little brown envelopes containing devil's scabious, treacle mustard and germander speedwell, but there's no need to be flash.
The adventurous may prefer the gloriously-named varieties like greater stitchwort, germander speedwell and treacle mustard.