Wild radish (Raphanus raphanistrum
) is an annual or biennial cool-season plant.
It has irregularly lobed leaves, purple-pinkish to white, four-petaled flowers and spongy seedpods. It is native to Europe and Asia but has been introduced to most parts of the world, and is considered an invasive species. R. raphanistrum
spreads rapidly, and is often found growing on roadsides or in other places where the ground has been disturbed. R. raphanistrum
blooms in early spring to late summer with flowers very similar to those of the searocket, which is found in some of the same regions and is easily distinguished from it by having thinner, non-succulent stems and leaves.
contains isothiocyanates which, if consumed in large quantities, can irritate the horse's gastrointestinal tract, leading to colic.