The open plant encyclopedia
Snap a photo or search by any name to see how to care for it, where it comes from, whether it's safe, and a 3D model you can turn.
The plants people record most in your country, and ones that grow there wild.
Filter by what you want to do, shape, origin, country, care and safety.
Rapistrum rugosum
Also called Annual bastard cabbage, Common giant mustard, Turnipweed, Bastard cabbage, Ball Turnip, Giant Mustard, Rapistrum Weed
An annual weedy herb in the cabbage family that grows up to about a metre tall, with lobed leaves and small yellow flowers. It is a common weed of disturbed ground and an invasive species in many regions, so it is usually controlled rather than grown.
Rapistrum rugosum is a species of flowering plant in the mustard family commonly known as bastard cabbage or annual bastard cabbage, as well as "common giant mustard", "turnipweed", "ball mustard", "wild turnip", "wild rape", or "tall mustard-weed". It is native to parts of Eurasia and Africa, but is present throughout the world as an introduced species and a common weed. It is an invasive species in many areas. It is an annual herb producing an erect stem reaching up to about a meter tall. The leaves are variable in shape and size and the proximal blades are generally cut into lobes or divided into leaflets. The herbage is coated in rough hairs. The inflorescence is a raceme of flowers with dark-veined yellow petals that are each under a centimeter long. The fruit is a knoblike spherical ribbed silique borne on a long pedicel with a widened area where it joins the fruit.
Text excerpted from the Wikipedia article Rapistrum rugosum by its contributors, under CC BY-SA 4.0; the excerpts and the care summary drawn from them are shared under the same licence.
The care summary was written by AI (Claude, Anthropic) from the sources on this page, with general growing knowledge where they are silent. Check before relying on it.
Life form, climate and native range: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew (CC BY 3.0), reformatted; see Plants of the World Online.
