Tsundere is actually a term derived by fans to classify a type of anime character that is becoming more common, usually a female lead. It is the combination of two words-tsuntsun and deredere. Tsuntsun Tsuntsun refers to being egoistic, hostile, tough.
Green pigweed tends to have faster germination and growth, and greater competitive ability than redroot or smooth pigweed. All 3 pigweed species can produce as many as 100,000 seeds per plant, although most plants growing in a crop produce between 10,000 and 30,000 seeds. Ungerminated seeds can live in the soil for as long as 40 years.
Typically, an involucre with a clasping shape of a cup or urn subtends each of a thistle's flowerheads. The term thistle is sometimes taken to mean exactly those plants in the tribe Cynareae (synonym: Cardueae), especially the genera Carduus, Cirsium, and Onopordum. However, plants outside this tribe are sometimes called thistles, and if this is done thistles would form a polyphyletic group.