|Scientific Name||Raphanus raphanistrum|
|Common Names||English: Wild radish, jointed charlock; German: Acker-Rettich, Hederich; French: Raifort sauvage; Spanish: Rábano silvestre|
|Description||Annual, seed-propagated weed with short taproot.|
White-yellow flowers, sepals erect, and purple in color (mustard spreads out sepals perpendicularly to flower stalk!).
Vigorous, broad, heart-shaped, tip very retracted, long-petiolate.
Erect, ramified, with spread-apart or downward-pointed hairs, up to 60 cm (23.62 inch) high.
Lyre-shaped pinnatifid, both surfaces with ovate, irregularly dentate lobes, side lobes increasing in size toward the tip, end lobes very large.
Upper leaves lanceolate, not lobed.
Pale yellow or white, veined violet or dark yellow, in clusters of few blossoms.
Sepals erect, adjacent to the floral leaves.
The 4 petals are spread out diagonally forming a cross shaped corolla.
Raceme simple, elongated.
Indeterminate cluster with stalked flowers.
Summer - autumn.
Dry dehiscent pod-like fruit which is longer, often many times than broad, having the shape of an elongated pouch.
Germination in spring.
Seed germination depth 1-2 cm (0.39 - 0.78 inch), shallow germinator.
Seeds are round to oval, yellowish to dark brown and dark.
Viability of Seeds
> 16 years.
Weedy places in fields and roadsides. Also frequent in waste grounds and coastal areas.
Primarily on lesser, somewhat acidic, low lime soils.
R. raphanistrum is a common weed worldwide, however, it is easy to control and is not a very strong competitor with infested crops.
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