Wild radish
General poisoning notes:
Wild radish (Raphanus
raphanistrum) is a naturalized herb found across most of Canada. This
plant, like the cultivated radish (Raphanus sativus) contains
glucosinolates in the seeds, which can cause poisoning if eaten in sufficient
quantities by livestock. Symptoms are similar to those discussed in the general
notes under Brassica
oleracea.
Description:
Wild radish grows
as an annual or biennial plant, with attractive four-petalled flowers 15-20 mm
across and varying in colour, usually from white to purple but sometimes light
orange to yellow, often with colour shading within a single petal. It is frost
hardy, and even hard freezes only temporarily interrupt bloom. It 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. It has a single taproot
which is similar to that of the cultivated radish but less enlarged.
Nomenclature:
Scientific Name: Raphanus raphanistrum L.
Vernacular
name(s): wild radish
Scientific family
name: Cruciferae
Vernacular family
name: mustard
Geographic Information:
British Columbia, Labrador,
New Brunswick, Ontario Nova Scotia, Prince Edward Island, Quebec, Saskatchewan.
Toxic parts:
Seeds.
Notes on Toxic plant chemicals:
Glucosinolates are
contained in the seeds of this plant. See the discussions on these toxins in
general notes under Brassica
oleracea.
Toxic plant chemicals:
Glucosinolates.
Chemical
diagram(s) are courtesy of Ruth McDiarmid, Biochemistry Technician, Kamloops
Range Station, Agriculture and Agri-Food Canada, Kamploops, British Columbia,
Canada.
Animals/Human Poisoning:
Note: When an
animal is listed without additional information, the literature (as of 1993)
contained no detailed explanation.
Cattle
General symptoms of
poisoning:
Hemoglobinuria.
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