Scientific name: brassica napobrassica
Tis forTumbleweed
A tumbleweed is any plant that grows to be a ball shape, and when it is fully grown it dies, dries out, and breaks off from its roots. The dry tumbleweed is then blown along by the wind, bouncing along until it gets stuck on something like a fence. Tumbleweeds lose their seeds as they tumble along, which spreads the plant.
Tweed is a rough woolen fabric. It is usually quite thick and warm, and has a distinctive herringbone or check pattern in it. Tweed is usually made in fairly dull colors like grey or brown, and is seen as a very old-fashioned fabric.
Weeds are plants growing where you do not want them. When people make a nice garden and plant flowers or vegetables in it, they do not want other plants that they did not plant there. Many weeds are prickly or thorny and do not look nice, which is why people do not want weeds in their gardens.
You are worried when you have been thinking about something a lot, and it is keeping you from being happy. People can be worried about not having enough money, or a job interview, or how they have gone in an exam they just took.